Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9641027 | Wireless power feeding system and wireless power feeding method | Wataru Hattori, Masahiro Tanomura, Shuhei Yoshida | 2017-05-02 |
| 7974328 | Surface-emission type semiconductor laser | Naofumi Suzuki, Takayoshi Anan, Kenichiro Yashiki, Hiroshi Hatakeyama, Kimiyoshi Fukatsu +1 more | 2011-07-05 |
| 7940828 | Optical communication system and optical transmitter | Hiroshi Hatakeyama, Kimiyoshi Fukatsu, Takayoshi Anan, Naofumi Suzuki, Kenichiro Yashiki | 2011-05-10 |
| 7881358 | Surface emitting laser | Takayoshi Anan, Naofumi Suzuki, Kenichiro Yashiki, Hiroshi Hatakeyama, Kimiyoshi Fukatsu +1 more | 2011-02-01 |
| 6350998 | Ultraspeed low-voltage drive avalanche multiplication type semiconductor photodetector | — | 2002-02-26 |
| 6323507 | Semiconductor photonic element, method of fabricating the same, and semiconductor photonic device equipped therewith | Yoshitaka Yokoyama, Koji Kudo | 2001-11-27 |
| 5801872 | Semiconductor optical modulation device | — | 1998-09-01 |
| 5539221 | Staircase avalanche photodiode | Kikuo Makita | 1996-07-23 |
| 5471068 | Semiconductor photodetector using avalanche multiplication and strained layers | Kikuo Makita | 1995-11-28 |
| 5204539 | Avalanche photodiode with hetero-periodical structure | Kikuo Makita | 1993-04-20 |