Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12253717 | Fiber cutter and fiber cutting method | Takaharu Matsuda, Guan Huang, Ryo Koyama, Yoshiteru Abe, Chisato FUKAI | 2025-03-18 |
| 12199665 | Optical monitor device | Ryo Koyama, Yoshiteru Abe | 2025-01-14 |
| 12169309 | Multi-fiber optical connector and optical fiber connection method | Yasunari Tanaka, Ryo Koyama, Yoshiteru Abe, Chisato FUKAI | 2024-12-17 |
| 11740414 | Multifiber optical connector and optical cable connection method | Kazunori KATAYAMA, Yoshiteru Abe, Ryo Koyama, Chisato FUKAI, Yusuke Yamada | 2023-08-29 |
| 11644627 | Optical connector cleaning tool and optical connector cleaning method | Chisato FUKAI, Yoshiteru Abe, Ryo Koyama | 2023-05-09 |
| 11543612 | Connector plug, connector insertion method, and a connector removal method | Yoshiteru Abe, Ryo Koyama, Chisato FUKAI, Kazunori KATAYAMA | 2023-01-03 |
| 11474303 | Optical connector ferrule, sleeve, and method for manufacturing ferrule member | Yoshiteru Abe, Ryo Koyama, Chisato FUKAI, Kazunori KATAYAMA, Kazuhide NAKAJIMA +1 more | 2022-10-18 |
| 8702317 | Optical connector and method for assembling same | Ryo Koyama, Kazuhide NAKAJIMA, Toshio Kurashima, Masatoshi Shimizu, Kyoichi Nakamizo | 2014-04-22 |
| 6755574 | Optical connector | Kunihiko Fujiwara, Yukio Hayashi, Yoshikazu Nomura, Hiroshi Yokosuka, Shinji Nagasawa | 2004-06-29 |
| 6634800 | Ferrule for optical connector | Katsuki Suematsu, Masato Shiino, Masao Shinoda, Koichi Maeno, Shinji Nagasawa +1 more | 2003-10-21 |
| 6425692 | Connecting structure for optical connector | Kunihiko Fujiwara, Yukio Hayashi, Yoshikazu Nomura, Hiroshi Yokosuka, Shinji Nagasawa | 2002-07-30 |
| 6402388 | Optical connector | Natsuka Imazu, Kazuhiro Takizawa, Toru Arikawa, Yasuhiro Tamaki, Hiroshi Yokosuka +1 more | 2002-06-11 |
| 6290527 | Nippon telegraph and telephone corporation | Shinji Nagasawa | 2001-09-18 |
| 6257769 | Optical waveguide component | Tomohiro Watanabe, Katsuhiko Iwashita, Toshihiko Ota, Kazunori Watanabe, Shinji Nagasawa | 2001-07-10 |
| 6186672 | Optical connector | Kazuhiro Takizawa, Toru Arikawa, Yasuhiro Tamaki, Hiroshi Yokosuka, Shinji Nagasawa | 2001-02-13 |
| 6047716 | Cleaning tool for optical connectors | Naoko Shimoji, Shinji Nagasawa | 2000-04-11 |
| 5960138 | Backplane connector | Naoko Shimoji, Shinji Nagasawa | 1999-09-28 |