Resume
Education
- Ph.D. (Information Science and Technology), Mar. 2010
-
Department of Mathematical Informatics,
Graduate School of Information Science and Technology,
The University of Tokyo
Thesis title: Sinc Numerical Methods for Integral Equations of the Second Kind (in Japanese)
Chief referee: Takayasu MATSUO (Associate Professor)
Co-referee:
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Masaaki SUGIHARA (Professor),
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Kazuo MUROTA (Professor),
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Hidenori OGATA
(Associate Professor of
Department of Computer Science, The University of Electro-Communications)
-
Norikazu SAITO (Associate Professor of
Graduate School of Mathematical Sciences,
The University of Tokyo)
- Master of Information Science and Technology, Mar. 2007
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Department of Mathematical Informatics,
Graduate School of Information Science and Technology,
The University of Tokyo
Thesis title: Sinc Numerical Methods for Integral Equations with a Weakly
Singular Kernel (in Japanese)
Supervisor: Takayasu MATSUO (Lecturer)
- Bachelor of Engineering, Mar. 2005
-
Department of Mathematical Engineering and Information Physics,
Faculty of Engineering, The University of Tokyo
Thesis title: Numerical Calculation of Fractional Derivatives using Automatic Differentiation and Double Exponential Formula (in Japanese)
Supervisor: Sunao MURASHIGE (Associate Professor)
Research / Professional Experience
- Apr. 2021 –
-
Associate professor
Graduate School of Information Sciences,
Hiroshima City University.
- Apr. 2014 – Mar. 2021
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Lecturer
Graduate School of Information Sciences,
Hiroshima City University.
- Apr. 2010 – Mar. 2014
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Project Lecturer
Graduate School of Economics,
Hitotsubashi University.
- Apr. 2009 – Mar. 2010
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JSPS
Research Fellow DC2:
"Construction of a novel paradigm of Sinc numerical methods based on
the approach of theoretical analysis taking practical use into account"
Japan Society for the Promotion of Science, Japan.
- Oct. 2008 – Mar. 2009
-
Research Assistant:
"Development and analysis of numerical methods by means of Sinc methods
aiming for practical use"
Global Center of Excellence, No. G05,
"The research and training center for new development in mathematics,"
MEXT,
Japan.
- May 2007 – Mar. 2008
-
Research Assistant: "Development of high-precision numerical methods
for equations with singularities"
Grant-in-Aid for Scientific Research (S), No. 15100001,
"Construction of Superrobust Computation Paradigm,"
MEXT,
Japan.
- Aug. 2003 – Sep. 2003
-
Summer Research Intern: "Distributed computing"
Adviser: Hiroki MURATA (Associate Senior Researcher)
IBM Research, Tokyo Research Laboratory, Japan.
Teaching Experience
- Apr. 2014 –
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Analysis I
(undergraduate course, Hiroshima City University)
-
Exercises in Analysis I
(undergraduate course, Hiroshima City University)
-
Linear Algebra I
(undergraduate course, Hiroshima City University)
-
Exercises in Linear Algebra I
(undergraduate course, Hiroshima City University)
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Analysis II
(undergraduate course, Hiroshima City University)
-
Linear Algebra II
(undergraduate course, Hiroshima City University)
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Modeling and Simulation
(undergraduate course, Hiroshima City University)
-
Numerical Methods
(undergraduate course, Hiroshima City University)
-
Exercises in Foreign Book Reading I, Exercises in Foreign Book Reading II
(undergraduate course, Hiroshima City University)
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Technical Writing, Presentation Techniques, Graduation Study I, Graduation Study II
(undergraduate course, Hiroshima City University)
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Advanced Mathematical Sciences B
(graduate course, Hiroshima City University)
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Advanced Stochastic Processes
(graduate course, Hiroshima City University)
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Advanced Seminar on Systems Engineering I,
Advanced Seminar on Systems Engineering II,
Advanced Seminar on Systems Engineering III,
Advanced Seminar on Systems Engineering IV
(graduate course, Hiroshima City University)
- Apr. 2011 – Mar. 2014
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Numerical Analysis
(undergraduate course, Hitotsubashi University)
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Introduction to Advanced Mathematics
(Contents: Ordinary Differential Equations)
(graduate course, Hitotsubashi University)
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Exercises in Mathematics 2 (Contents: Calculus and Linear Algebra, intermediate--advanced)
(undergraduate course, Hitotsubashi University)
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Exercises in Mathematics 1 (Contents: Calculus and Linear Algebra, primary--intermediate)
(undergraduate course, Hitotsubashi University)
- Apr. 2010 – Mar. 2011
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Special Seminar (Contents: Numerical Analysis)
(undergraduate course, Hitotsubashi University)
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Special Lecture (Contents: Calculus and Linear Algebra, intermediate--advanced)
(undergraduate course, Hitotsubashi University)
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Special Lecture (Contents: Calculus and Linear Algebra, primary--intermediate)
(undergraduate course, Hitotsubashi University)
- Apr. 2009 – Sep. 2009
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Teaching Assistant, Advanced Core in Analysis
(graduate course, The University of Tokyo)
- Apr. 2008 – Sep. 2008
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Teaching Assistant, Advanced Core in Analysis
(graduate course, The University of Tokyo)
- Apr. 2007 – Mar. 2009
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Part-Time Lecturer, Physics I (Yachiyo Rehabilitation College)
- Apr. 2006 – Sep. 2006
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Teaching Assistant, Information
(undergraduate course, The University of Tokyo)
- Oct. 2005 – Mar. 2006
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Teaching Assistant, Numerical Analysis
(undergraduate course, The University of Tokyo)
- Apr. 2005 – Sep. 2005
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Teaching Assistant, Analytical Methods in Mathematical Engineering
(undergraduate course, The University of Tokyo)
- Apr. 2005 – Sep. 2005
-
Part-Time Assistant Professor, Introduction to Computer Literacy
(undergraduate course, Toho University)
- Apr. 2005 – Mar. 2006
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Part-Time Teacher, Information (Fuchunishi High School)
- Sep. 2004
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Practice teaching, Information (Secondary Education School attached to Department of Education, The University of Tokyo)
- Apr. 2002 – Mar. 2003
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Cram School Teacher, Mathematics (Koushigakusha Private School)
- Oct. 2001 – Sep. 2008
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Junior Teaching Assistant,
a.k.a. ECCS Tutors
(Information Technology Center, The University of Tokyo)
Social activities (lectures, tutorials)
- Jul. 6, 2017 & Jul. 4, 2019
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Lecture at Kamo senior high school, Higashihiroshima, Hiroshima
"Numerical methods for computers —Technique for approximating a solution—"
- Jun. 11, 2014
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Lecture at Ishigaki junior high school, Ishigaki, Okinawa
"Road to a university faculty position"
- Dec. 25, 2012
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Tutorial at Hongo campus, the University of Tokyo
"On error estimate for the double-exponential formula"
- Feb. 12, 2012
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Tutorial at Manabi Pia 21, Tokyo
"Introduction to block-building"
- Sep. 4, 2011
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Tutorial at Hongo campus, the University of Tokyo
"Introduction to commutators"
Honors, Awards, Grants
- 2023 –
-
Grant-in-Aid for Scientific Research (C)(23K03218),
Japan Society for the Promotion of Science, Japan.
- 2023
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Paper Award in 2023,
"Theoretical comparison of two conformal maps combined with the trapezoidal formula for the semi-infinite integral of exponentially decaying functions,"
JSIAM Letters.
- 2022
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Faculty award in education, Hiroshima City University.
- 2017 – 2023
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Grant-in-Aid for Young Scientists (B)(17K14147),
Japan Society for the Promotion of Science, Japan.
- 2013
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Paper Award in 2013,
"Modified Sinc-Collocation Methods for Integral Equations of the Second Kind and Their Theoretical Analysis,"
Transactions of JSIAM.
- 2012 – 2016
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Grant-in-Aid for Young Scientists (B)(24760060),
Japan Society for the Promotion of Science, Japan.
- 2010 – 2011
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Grant-in-Aid for Research Activity start-up (22860026),
Japan Society for the Promotion of Science, Japan.
- 2009
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Grant-in-Aid for JSPS Fellows (09J04948),
Japan Society for the Promotion of Science, Japan.
- 2008
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The University of Tokyo Assistance Association (fellowship)
- 2007
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Talk Award in 2007,
"Theoretical analysis of the Sinc numerical method for weakly singular integral equations of the second kind,"
The 2007 annual meeting of JSIAM.
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Paper Award in 2007,
"Numerical Calculation of Fractional Derivatives using Automatic Differentiation and Double Exponential Formula,"
Transactions of JSIAM.
- 2006
-
Student Scholarship of Worldwide Developers Conference 2006, Apple Inc.
(free invitation ticket for WWDC2006)
- 2005
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Exploratory Software Project (Exploratory Youth Program),
"User-Oriented Package Management System,"
Information-Technology Promotion Agency, Japan.
Qualification / License
- Rubik's Cubist Certification (Japan Rubik's Cube Association)
- High School Teacher, 1st Grade, Mathematics/Information (Board of Education, Tokyo Metropolitan Government)
- Information Processing Proficiency Test, 2nd Grade (Educational Promotion Group of Vocational School)
- Practical Mathematics Proficiency Test, a.k.a. Global Mathematics Certification, 1st Grade (The Mathematics Certification Institute of Japan)
- Secretarial Skill Proficiency Test, 2nd Grade (The Testing Institute of Business, Art and Technological Proficiency)
- Graphics Information Processing Proficiency Test, Category CG, 2nd Grade (Computer Graphic Arts Society)
- Systems Administrator (Information-Technology Promotion Agency, Japan)
- Hazardous Materials Handler, Grade B, Category 4 (Bureau of General Affairs, Tokyo Metropolitan Government)
- Driver's License, Regular Vehicle, Non-Passenger (Tokyo Metropolitan Public Safety Commission)
- Shodo, Calligraphy, 7th Dan (Syozanmai)
- Practical English Skill Official Approval, 2nd Grade (Society for Testing English Proficiency)
- Japan Kanji Proficiency Test, 2nd Grade (Japan Kanji Proficiency Test Association)
- Official Business Skill Test in Abacus Calculation, 3rd Grade (The Japan Chamber of Commerce and Industry)
Membership
- Society for Industrial and Applied Mathematics (SIAM)
- The Japan Society for Industrial and Applied Mathematics (JSIAM)
- The Mathematical Society of Japan
- Mathematics Education Society in Japan
Circle (Club in the University of Tokyo)
- Todai Rubik's Cube Circle (2009 – 2010)
Activities
- Mar. 27 – 28, 2010 @ KOKO PLAZA, Osaka
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Japan Open 2010
- Mar. 23, 2010 @ Komaba campus, The University of Tokyo
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The 9th TRCC Periodical Puzzle-Solving Meet
- Feb. 21, 2010 @ KDDI Designing Studio, Tokyo
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JRCA Kanto Winter 2010
- Feb. 18, 2010 @ Komaba campus, The University of Tokyo
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The 8th TRCC Periodical Puzzle-Solving Meet
- Dec. 25, 2009 @ Komaba campus, The University of Tokyo
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The 7th TRCC Periodical Puzzle-Solving Meet
- Nov. 16, 2009 @ Komaba campus, The University of Tokyo
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The 6th TRCC Periodical Puzzle-Solving Meet
- Sep. 15, 2009 @ Komaba campus, The University of Tokyo
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The 4th TRCC Periodical Puzzle-Solving Meet
- Aug. 14, 2009 @ Hongo campus, The University of Tokyo
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The 3rd TRCC Periodical Puzzle-Solving Meet
- mid-Aug., 2009 – (weekly)
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Fewest Moves Challenge
- Aug. 1 – 2, 2009 @ Matsudo Civic Center, Chiba
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Japan Open 2009
- Jun. 21, 2009 @ Narihira Shinmeibashi Community Center, Tokyo
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JRCA Kanto Summer 2009
- Todai Piano Society (2001 – 2005)
Activities
- Mar. 5, 2005 @ Lutheran Ichigaya Center, Tokyo
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2005 Graduation Concert
- Victor Young: My Foolish Heart
- Scott Joplin: Maple Leaf Rag
- Nov. 23, 2004 @ Komaba campus, The University of Tokyo
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2004 Komaba Festival Big Concert
- Koji Kondo: Medley of Super Mario Brothers
- May 30, 2004 @ Hongo campus, The University of Tokyo
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2004 May Festival Big Concert
- Makiko Hirohashi: Komorebi (Japanese in the sense of "Light Shining through Leaves")
- Chick Corea: Spain
- Nov. 22, 2003 @ Komaba campus, The University of Tokyo
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2003 Komaba Festival Big Concert
- Tatsuro Yamashita: Amaku Kiken na Kaori
(Japanese in the sense of "Sweet, Dangerous Scent")
- Joseph Kosma: Autumn Leaves
- Nov. 22, 2002 @ Komaba campus, The University of Tokyo
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2002 Komaba Festival Big Concert
- Boz Scaggs: We're All Alone
- Nikolai Kapustin: 8 Concert Etudes Op. 40 No. 8 "Finale"
- May 25, 2002 @ Hongo campus, The University of Tokyo
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2002 May Festival Big Concert
- Alan Menken: A Whole New World
- Jerome Kern: Smoke Gets in Your Eyes
- Cole Poter: You'd Be So Nice to Come Home to
- Nov. 23, 2001 @ Komaba campus, The University of Tokyo
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2001 Komaba Festival Big Concert
- Van Morrison: Have I Told You Lately
- Harold Arlen: Over the Rainbow
- Todai Jazz Junk Workshop (2001)
Activities
- May 28, 2001 @ Hongo campus, The University of Tokyo
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Concert in 2001 May Festival (Part: Tenor Sax.)
Podium/Finalist in Rubik's Cube Official Competitions
Former world-record holder in Fewest Moves (20 moves, stood for 1185 days)
See also:
- 2018
-
List
- 2017
-
List
- 2016
-
List
- 2015
-
List
- 2014
-
List
-
Third place in Rubik's Cube: Fewest Moves,
Tachikawa 3x3 Fest 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Asian Championship 2014.
Asian Champion
-
Champion in 5x5x5 Cube: Blindfolded,
Asian Championship 2014.
Asian Champion
-
Finalist in 2x2x2 Cube,
Sapporo Open 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Sapporo Open 2014.
-
Finalist in Skewb,
Prague Open 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Prague Open 2014.
Tied Asian Record (Mean: 29.00 moves)
See also: History of Asian Records in Rubik's Cube: Fewest Moves
-
Vice-Champion in Rubik's Cube: Blindfolded,
Prague Open 2014.
-
Finalist in 2x2x2 Cube,
Cube Camp in Kanazawa 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Cube Camp in Kanazawa 2014.
-
Vice-Champion in 5x5x5 Cube: Blindfolded,
Cube Camp in Kanazawa 2014.
-
Finalist in Skewb,
Cherry Blossom Viewing Open 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Kansai Open 2014.
-
Champion in 5x5x5 Cube: Blindfolded,
Kansai Open 2014.
-
Finalist in Rubik's Cube: Blindfolded,
Kansai Open 2014.
-
Finalist in Skewb,
Kanto Open 2014.
-
Champion in Rubik's Cube: Fewest Moves,
Molina Open 2014.
-
Champion in 4x4x4 Cube: Blindfolded,
Molina Open 2014.
-
Champion in Rubik's Cube: Multiple Blindfolded,
Molina Open 2014.
-
Finalist in 2x2x2 Cube,
Molina Open 2014.
- 2013
-
List
-
Champion in Rubik's Cube: Fewest Moves,
Hokuriku Eve Open 2013.
-
Vice-Champion in 2x2x2 Cube,
Hokuriku Eve Open 2013.
-
Third place in Rubik's Cube: Blindfolded,
Hokuriku Eve Open 2013.
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Third place in 4x4x4 Cube: Blindfolded,
West Japan Big Cube 2013.
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Vice-Champion in 5x5x5 Cube: Blindfolded,
Cube Camp in Kanazawa 2013.
-
Champion in Rubik's Cube: Fewest Moves,
Tachikawa 3x3 Fest 2013.
-
Finalist in Rubik's Cube: Blindfolded,
Tachikawa 3x3 Fest 2013.
-
Vice-Champion in Rubik's Cube: Blindfolded,
Kansai Star Festival 2013.
-
Third place in Rubik's Cube: Blindfolded,
Lake-Biwa Open 2013.
-
Champion in Rubik's Cube: Fewest Moves,
Japan Open 2013.
Japan Champion (regain the title)
-
Vice-Champion in 4x4x4 Cube: Blindfolded,
Japan Open 2013.
-
Third place in 5x5x5 Cube: Blindfolded,
Japan Open 2013.
-
Third place in Rubik's Cube: Multiple Blindfolded,
Japan Open 2013.
-
Vice-Champion in Rubik's Cube: Blindfolded,
Kawasaki Open 2013.
-
Third place in Square-1,
Cherry Blossom Viewing Open 2013.
Video: Square-1 39.31 (Average of 5)
-
Champion in Rubik's Cube: Fewest Moves,
Kansai Open 2013.
-
Champion in Rubik's Cube: Multiple Blindfolded,
Kansai Open 2013.
-
Vice-Champion in 4x4x4 Cube: Blindfolded,
Kansai Open 2013.
- 2012
-
List
-
Champion in Rubik's Cube: Fewest Moves,
Hokuriku Eve Open 2012.
-
Champion in Rubik's Cube: Blindfolded,
Hokuriku Eve Open 2012.
-
Champion in Rubik's Cube: Fewest Moves,
Kanto Winter 2012.
-
Champion in Rubik's Cube: Fewest Moves,
Asian Championship 2012.
Asian Champion
-
Champion in 5x5x5 Cube: Blindfolded,
Asian Championship 2012.
Asian Champion
-
Champion in Rubik's Cube: Multiple Blindfolded,
Asian Championship 2012.
Asian Champion
-
Vice-Champion in 4x4x4 Cube: Blindfolded,
Asian Championship 2012.
Video: 4x4 Cube: Blindfolded 16:28.97
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Finalist in Rubik's Cube: Blindfolded,
Asian Championship 2012.
-
Finalist in Gear Cube (as an unofficial event),
Asian Championship 2012.
Video: Gear Cube 7.47 (Average of 5) (1st round) Gear Cube 5.773, 5.648, 8.477 (final)
Results: Gear Cube result for AC2012
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Vice-Champion in Rubik's Cube: Fewest Moves,
Japan Open 2012.
-
Third place in Rubik's Cube: Multiple Blindfolded,
Japan Open 2012.
-
Finalist in Rubik's Cube: Blindfolded,
Japan Open 2012.
-
Vice-Champion in Rubik's Cube: Fewest Moves,
Moves are for n00bs 2012.
-
Finalist in Rubik's Cube: Speedsolving,
Moves are for n00bs 2012.
-
Finalist in 4x4x4 Cube: Speedsolving,
Moves are for n00bs 2012.
-
Champion in Rubik's Cube: Fewest Moves,
Cube Camp in Kanazawa 2012.
-
Vice-Champion in 4x4x4 Cube: Blindfolded,
Cube Camp in Kanazawa 2012.
-
Vice-Champion in 5x5x5 Cube: Blindfolded,
Cube Camp in Kanazawa 2012.
-
Finalist in Rubik's Cube: Blindfolded,
Cube Camp in Kanazawa 2012.
-
Champion in Rubik's Cube: Fewest Moves,
Czech Open 2012.
New World Record (20 moves)
See also: History of World Records in Rubik's Cube: Fewest Moves
Video: Winning ceremony for Fewest Moves in Czech Open 2012
Video: 3x3 Fewest Moves World Record Stopmotion
Video: 3x3 Cube FMC WR Single Tomoaki Okayama [20 Moves]
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Third place in 4x4x4 Cube: Blindfolded,
Czech Open 2012.
Video: Winning ceremony for 4x4x4 Blindfolded in Czech Open 2012
-
Vice-Champion in 5x5x5 Cube: Blindfolded,
Kansai Open 2012.
Video: 5x5 Cube: Blindfolded 43:17.79
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Third place in Rubik's Cube: Blindfolded,
Kansai Open 2012.
-
Champion in Rubik's Cube: Multiple Blindfolded,
Waseda Brain Challenge 2012.
Video: Rubik's Cube: Multiple Blindfolded 6/6 (41:30.54)
-
Champion in 4x4x4 Cube: Blindfolded,
Waseda Brain Challenge 2012.
Video: 4x4 Cube: Blindfolded 13:28.66
-
Champion in Rubik's Cube: Fewest Moves,
Waseda Brain Challenge 2012.
-
Vice-Champion in Rubik's Cube: Fewest Moves,
Twente Open 2012.
New Asian Record (26 moves)
See also: History of Asian Records in Rubik's Cube: Fewest Moves
- 2011
-
List
-
Champion in Rubik's Cube: Fewest Moves,
Cube Camp in Kanazawa 2011.
New Japanese Record (28 moves)
See also: History of Japanese Records in Rubik's Cube: Fewest Moves
-
Champion in 4x4x4 Cube: Blindfolded,
Cube Camp in Kanazawa 2011.
-
Vice-Champion in Rubik's Cube: Blindfolded,
Cube Camp Kanazawa 2011.
-
Champion in Rubik's Cube: Fewest Moves,
Japan Open 2011.
Japan Champion (for two consecutive years)
-
Vice-Champion in 4x4x4 Cube: Blindfolded,
Japan Open 2011.
-
Third place in 5x5x5 Cube: Blindfolded,
Japan Open 2011.
-
Vice-Champion in Rubik's Cube: Multiple Blindfolded,
Japan Open 2011.
-
Finalist in Rubik's Cube: Blindfolded,
Matsudo Spring 2011.
Video: Rubik's Cube: Blindfolded 2:50.97
-
Vice-Champion in Rubik's Cube: Multiple Blindfolded,
Osaka 2011.
-
Third place in 4x4x4 Cube: Blindfolded,
Osaka 2011.
-
Vice-Champion in 5x5x5 Cube: Blindfolded,
Osaka 2011.
- 2010
-
List
- 2009
-
List