IS

Isao Shibuya

MC Mabuchi Motor Co.: 11 patents #3 of 228Top 2%
TK Tanaka Kikinzoku Kogyo K.K.: 3 patents #94 of 436Top 25%
SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%
Overall (All Time): #260,250 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10510471 Composition for bonded magnets, bonded magnet and integrally molded component Hideki Matsuda, Kenji Muraoka, Toshiya Iwai, Junichi Ishii, Atsushi Kawamoto +2 more 2019-12-17
6407228 Method for the preparation of &bgr;-lactam compound Yoichi Taguchi, Akihiro Oishi, Tohru Tsuchiya 2002-06-18
6245166 Material for sliding contact, composite clad material, and small-sized direct current motor using the same Keiji Nakamura, Kenji Shiraki, Toshiya Yamamoto, Takao Asada 2001-06-12
6225265 Miniature electric motor with reduction worm gear unit Junya Kurata 2001-05-01
5972131 Ag-Cu alloy for a sliding contact Takao Asada, Keiji Nakamura, Toshiya Yamamoto, Tetsuya Nakamura, Kiyoshi Nakama 1999-10-26
5876862 Sliding contact material, clad compoosite material, commutator employing said material and direct current motor employing said commutator Toshiya Yamamoto, Takao Asada, Tetsuya Nakamura 1999-03-02
5700931 7-substituted-2-oxa3.2.0!heptan-6-one compound and method for the preparation thereof Yoichi Taguchi, Akihiro Oishi, Tohru Tsuchiya 1997-12-23
5677444 Method for the preparation of .beta.-ketothioamide compound Tohru Tsuchiya, Yoichi Taguchi, Akihiro Oishi, Kazumasa Honda 1997-10-14
5585487 Method for the preparation of .beta.-thiolactam compound Akihiro Oishi, Yoichi Taguchi, Tohru Tsuchiya 1996-12-17
5550230 7-Substituted-2-oxa-7-azabicyclo [3.2.0.]heptan-6-one compound and method for the preparation thereof Yoichi Taguchi, Akihiro Oishi, Tohru Tsuchiya 1996-08-27
5502343 Miniature motor Kazutoshi Yoshimura, Kenji Hagiwara 1996-03-26
5357159 Miniature motor Kenji Hagiwara, Kazutoshi Yoshimura 1994-10-18
5270596 Miniature D-C motor Kenji Hagiwara, Kazutoshi Yoshimura, Kenji Tsuyama 1993-12-14
5227689 Metal-filled graphite for miniature motors and method of making same 1993-07-13
5144181 Carbon brush for miniature motors and method of making same 1992-09-01
5138053 Method for producing thiadiazine compounds Masahiko Yasumoto, Touru Tsuchiya, Yoichi Taguchi, Katsumi Yonemoto 1992-08-11
5136198 Carbon brush for miniature motors and method of making same 1992-08-04
5089612 Thiadiazine compound and method for preparing same Masahiko Yasumoto, Tohru Tsuchiya, Midori Goto 1992-02-18