• Mathmatics C
    An authorized textbook on mathematics for senior high school, February 2022
    Suken Publishing Co.
    (The First Author).
• Mathmatics III
    An authorized textbook on mathematics for senior high school, February 2022
    Suken Publishing Co.
    (The First Author).
• Mathmatics B
    An authorized textbook on mathematics for senior high school, February 2021
    Suken Publishing Co.
    (The First Author).
• Mathmatics II
    An authorized textbook on mathematics for senior high school, February 2021
    Suken Publishing Co.
    (The First Author).
• Mathmatics A
    An authorized textbook on mathematics for senior high school, February 2021
    Suken Publishing Co.
    (The First Author).
• Mathmatics I
    An authorized textbook on mathematics for senior high school, February 2021
    Suken Publishing Co.
    (The First Author).
• On Jones polynomials of alternating pretzel knots
    Journal of Knot Theory and Its Ramifications, 21-14 (2012),
    1250127-1 - 1250127-11, DOI : 10.1142/S0218216512501271
    (with Masao Hara).
• Mathmatics III
    An authorized textbook on mathematics for senior high school, January 2013
    Suken Publishing Co.
    (The First Author).
• Mathmatics B
    An authorized textbook on mathematics for senior high school, January 2013
    Suken Publishing Co.
    (The First Author).
• Mathmatics II
    An authorized textbook on mathematics for senior high school, January 2012
    Suken Publishing Co.
    (The First Author).
• Mathmatics A
    An authorized textbook on mathematics for senior high school, January 2012
    Suken Publishing Co.
    (The First Author).
• Mathmatics I
    An authorized textbook on mathematics for senior high school, January 2012
    Suken Publishing Co.
    (The First Author).
• A fast algorithm for computing Jones polynomials of Motesinos links
    Scientiae Mathmaticae Japonicae, 69 (2009), 1-26
    (with Masao Hara, Masahiko Murakami, Sei-ichi Tani).
• Fast algorithms for computing Jones polynomials of certain links
    Theoretical Computer Science, 374 (2007), 1-24.
    (with Masao Hara, Masahiko Murakami, Sei-ichi Tani).
• Fast algorithms for computing Jones polynomials of certain links
    4th Japanese-Hungarian Symposium on Discrete Mathematics
    and Its Applications, Budapest, 209 - 216, 2005.
    (with Masao Hara, Masahiko Murakami, Sei-ichi Tani).
• Unknotting is in AM \cap co-AM.
    In Proceedings of the 16th ACM-SIAM Symposium on Discrete Algorithm,
    pp.359-365, SIAM, 2005.
    (with Masao Hara, Sei-ichi Tani).
• A polynomial-time algorithm for computing the Jones polynomials of
    arborescent links (in Japanese),
    Information Technology Letters, Vol.1 (2002), 16-17.
    (with Masao Hara, Sei-ichi Tani)
• Degrees of the Jones polynomials of certain pretzel links,
    Journal of Knot Theory and Its Ramifications, 9 (2000), 907 - 916.
    (with Masao Hara and Sei-ichi Tani)
• On the optimum SOR iterations for finite difference approximation to
    periodic boundary value problems,
    Mathemaca Japonica, 41 (1995), 199 - 209.
    (with Kazuo Ishihara)
• Optimum relaxation parameter of SOR iterations for discrete Neumann
    type arising from two-point boundary value problems,
    Mathemaca Japonica, 39 (1994), 385 - 393.
    (with Kazuo Ishihara)
• SOR methods for finite difference equations with a nonsymmetric
    matrix arising from two-point boundary value problems,
    Mathematica Japonica, 38 (1993), 127 -139.
    (with Kazuo Ishihara)
• Some links with non-adequate minimal-crossing diagrams,
    Mathematical Proceedings of Cambridge Philosophical Society,
    111 (1992), 283 - 289.
    (with Masao Hara)
• Any fibered knot is concordant to a prime fibered knot in $S^3$,
    Bulletin of Osaka Women's University, 27 (1990), 109 - 116.
• Numerical asymptotic behavior of finite element solution for a
    nonlinear parabolic system in gas-liquid reactions,
    Bulletin of Osaka Women's University, 27 (1990), 117 - 135.
    (with Kazuo Ishihara)
• Knots in spatial embeddings of the complete graph on four vertices,
    Topology and its Applications, 36 (1990), 291 - 298.
• Lower bounds for the unknotting numbers of certain algebraic knots,
    Proceedings of a symposium ``Topology and Computer Science'',
    Kinokuniya, Tokyo, Japan, 1987.
• Lower bounds for the unknotting numbers of certain iterated torus knots,
    Tokyo Journal of Mathematics, 9 (1986), 81 - 86.
• Classification of isolated algebraic singularities by their Alexander polynomials,
    Topology, 23 (1984), 277 - 287.
• Infinitely many fibred links having the same Alexander polynomial,
    Mathematics Seminar Notes, Kobe University, 11 (1983), 387 - 389.
• Lower bounds for the unknotting numbers of certain torus knots,
    Proceedings of the American Mathematical Society, 86 (1982), 519 - 524.
• Amida-diagrams and Seifert matriecs of positive iterated torus knots,
    Proceedings of the Japan Academy, Series A, 54 (1978), 256 - 261.