Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11616156 | Semiconductor device comprising a monitor including a second semiconductor layer in which dark current is changed by a heater | — | 2023-03-28 |
| 9553224 | Semiconductor photodetector element and method | Kenichi Kawaguchi, Hiroyasu Yamashita, Yoshiaki Nakata | 2017-01-24 |
| 9276162 | Semiconductor photodetector and method for manufacturing the same | Haruhiko Kuwatsuka, Toru Uchida, Yoshihiro Yoneda | 2016-03-01 |
| 8772896 | Semiconductor photodetector that causes avalanche multiplication to occur only at photodetector portion located at central portion of mesa structure | Haruhiko Kuwatsuka, Toru Uchida, Yoshihiro Yoneda | 2014-07-08 |
| 7968868 | Optical semiconductor device and manufacturing method of the same | Kenichi Kawaguchi | 2011-06-28 |
| 7875946 | Semiconductor photodetector that causes avalanche multiplication to occur only at photodetector portion located at central portion of mesa structure | Haruhiko Kuwatsuka, Toru Uchida, Yoshihiro Yoneda | 2011-01-25 |
| 7663139 | Optical semiconductor device and manufacturing method of the same | Kenichi Kawaguchi | 2010-02-16 |
| 7507600 | Semiconductor photodetecting device and method for fabricating the same | Haruhiko Kuwatsuka, Akito Kuramata | 2009-03-24 |
| 6943422 | Semiconductor photodetecting device and method for fabricating the same | Haruhiko Kuwatsuka, Akito Kuramata | 2005-09-13 |
| 6906308 | Semiconductor light receiving device in which optical and electric signal are propagated at matched velocities | Haruhisa Soda | 2005-06-14 |
| 6710378 | Semiconductor light reception device of end face light incidence type | Masao Makiuchi, Haruhisa Soda, Takuya Fujii | 2004-03-23 |
| 6498337 | High-speed photodetector | — | 2002-12-24 |
| 4984032 | Semiconductor photodiode | Shuichi Miura, Takashi Mikawa, Haruhiko Kuwatsuka | 1991-01-08 |