Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11916161 | Semiconductor light-receiving element | Hiroshi Hamada, Shigehisa Tanaka | 2024-02-27 |
| 11476382 | Semiconductor light-receiving element | Hiroshi Hamada, Shigehisa Tanaka | 2022-10-18 |
| 11194105 | Photoelectric conversion element, optical subassembly, and method for manufacturing photoelectric conversion element | Hiroshi Hamada | 2021-12-07 |
| 10978605 | Semiconductor photodiode, optical receiver module, optical module, and optical transmission equipment | Hiroshi Hamada, Shigehisa Tanaka | 2021-04-13 |
| 10393972 | Optical subassembly and optical module | Hiroshi Hamada | 2019-08-27 |
| 10204955 | Back illuminated photo detector and optical receiver module having a center portion of an exposed contact portion located on an optical axis of light | Hiroshi Hamada | 2019-02-12 |
| 9312965 | Optical receiver module | Koki Iemura, Hiroshi Hamada | 2016-04-12 |
| 9035407 | Receiver module and device | Hiroshi Hamada | 2015-05-19 |
| 8907266 | Light-receiving device array, optical receiver module, and optical transceiver | Takuma Ban, Hiroshi Hamada | 2014-12-09 |
| 8575714 | Backside illuminated semiconductor light-receiving device, optical receiver module, and optical transceiver | Hiroshi Hamada, Masataka Yokosawa | 2013-11-05 |
| 7875905 | Semiconductor optical receiver device, optical receiver module, and method for manufacturing semiconductor optical receiver device | Hiroyuki Kamiyama, Kazuhiro Komatsu | 2011-01-25 |
| 6800914 | Semiconductor photodetector device and manufacturing method thereof | Kazuhiro Ito, Shigehisa Tanaka, Sumiko Fujisaki, Yasunobu Matsuoka | 2004-10-05 |
| 5844931 | Semiconductor laser devices | Misuzu Sagawa, Kiyohisa Hiramoto, Tomonobu Tsuchiya, Kazunori Shinoda | 1998-12-01 |
| 5283846 | Optical isolator, optical circuit, and rare-earth-doped fiber optical amplifier | Shinji Tsuji, Makoto Haneda, Yuichi Ono | 1994-02-01 |