MS

Masaaki Sakai

PL Pfu Limited: 17 patents #16 of 478Top 4%
Canon: 12 patents #5,447 of 19,416Top 30%
SO Sony: 5 patents #7,785 of 25,231Top 35%
TI Toray Industries: 4 patents #687 of 3,690Top 20%
SK Sds Biotech K.K.: 3 patents #13 of 82Top 20%
MM Mitsubishi Materials: 2 patents #498 of 1,543Top 35%
MI Minolta: 2 patents #592 of 1,109Top 55%
SK Showa Denko K.K.: 2 patents #639 of 1,736Top 40%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
MM Mitsubishi Motors: 1 patents #856 of 1,823Top 50%
📍 Kahoku, JP: #2 of 200 inventorsTop 1%
Overall (All Time): #55,703 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 26–49 of 49 patents

Patent #TitleCo-InventorsDate
5507257 Value guide member formed of Fe-based sintered alloy having excellent wear and abrasion resistance Takashi Kobayashi, Kazuyuki Hoshino, Ichiro Tanaka, Masashi Sasaki 1996-04-16
D325743 Printing head for printer Tatsuo Kojima 1992-04-28
D321002 Laser beam printer Naoki Tashiro 1991-10-22
D321001 Laser beam printer Toshio Umino 1991-10-22
D319656 Laser beam printer Naoki Tashiro, Hiroyuki Tokuda 1991-09-03
D319655 Laser beam printer Hiroyuki Tokuda 1991-09-03
D315360 Printer for computer Hiroyuki Tokuda, Tatsuo Kojima 1991-03-12
D311526 Opti-magnetic disc cartridge Tomohiko Hamada 1990-10-23
4838720 Paper guide of printer for word-processor Sadao Ishihara, Touma Shimoyama 1989-06-13
4729215 Yarn for manufacturing artificial furs Kenji Sato, Seiichi Yamagata 1988-03-08
4729060 Cooling system for electronic circuit device Haruhiko Yamamoto, Yoshiaki Udagawa, Kouji Katsuyama, Mitsuhiko Nakata 1988-03-01
4698703 Capstan servo system Kazuhisa Nishimura, Mitsugu Yoshihiro, Seiichi Hataoka 1987-10-06
4667703 Apparatus for manufacturing double connecting pile fabric Seiichi Yamagata 1987-05-26
4546020 Artificial fur with guard hair fibers and under fur fibers Kenji Sato, Seiichi Yamagata 1985-10-08
4463391 Video tape editor Masayuki Takano, Masaharu Enoki 1984-07-31
4459612 Vertical synchronizing signal detecting circuit Mitsutoshi Shinkai, Kenji Nakano, Tadahiko Nakamura 1984-07-10
4438377 Stop control circuit for brushless DC motor Mitsugu Yoshihiro 1984-03-20
4415611 Artificial fur having guard hair fibers and under fur fibers and a method for manufacturing the same Seiichi Yamagata 1983-11-15
4377777 Switching drive circuit Osamu Asagi 1983-03-22
D263967 Desk top electronic calculator Junichi Motoyoshi 1982-04-20
D261528 Desk top electronic calculator Kunio Hirose 1981-10-27
D261273 Desk top electronic calculator Sakae Uematsu 1981-10-13
D261146 Electrostatic copier or similar article Toshihiko Sakow 1981-10-06
D259348 Combined desk top electronic calculator and clock Hideo Fushimoto 1981-05-26