Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305722 | Cam clutch | Tsubasa Sugiya, Yuji Kurematsu, Akihiro Fukuda, Hiroyuki Kamihigashi | 2025-05-20 |
| 12253121 | Cam clutch | Yoshihito Shimanaka | 2025-03-18 |
| 11913503 | Cam clutch | Tsubasa Sugiya, Yuji Kurematsu | 2024-02-27 |
| 11846329 | Cam clutch | Yuji Kurematsu, Tsubasa Sugiya | 2023-12-19 |
| 11808313 | Cam clutch | Kohei Kunimatsu | 2023-11-07 |
| 11761496 | Cam clutch | Yuji Kurematsu, Tsubasa Sugiya | 2023-09-19 |
| 9622526 | Glove, and method for producing the same | — | 2017-04-18 |
| 6934434 | Circuit for switching optical paths | Satoshi Kumayasu | 2005-08-23 |
| 6792192 | Optical variable attenuator | Satoshi Kumayasu | 2004-09-14 |
| 6714394 | Electric power feeding line switching method, electric power feeding line switching apparatus and electric power feeding line switching system | Satoshi Kumayasu | 2004-03-30 |
| 6563236 | Feed line switching circuit and branching unit | Satoshi Kumayasu, Kenichi Asakawa, Kazunori Sato | 2003-05-13 |
| 5510930 | Light amplifying apparatus | Kuniaki Motoshima, Tadayoshi Kitayama, Junichiro Yamashita, Shigeyuki Akiba, Masatoshi Suzuki +3 more | 1996-04-23 |
| 5455704 | Optical-fiber light amplifier | Takashi Mizuochi, Tadayoshi Kitayama, Katsuhiro Shimizu, Kiwami Matsushita, Nobuyuki Takemura | 1995-10-03 |
| 5367587 | Optical amplifier | Takashi Mizuochi, Tadayoshi Kitayama, Katsuhiro Shimizu, Kiwami Matsushita, Nobuyuki Takemura | 1994-11-22 |
| 4989930 | Optoelectronics package | Junichiro Yamashita | 1991-02-05 |