Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9640703 | Avalanche photodiode | Eiji Yagyu, Eitaro Ishimura | 2017-05-02 |
| 9406830 | Semiconductor light-receiving device | Ryota Takemura, Kazuki Yamaji | 2016-08-02 |
| 9329077 | Semiconductor photodetector device | Yuji Masuyama, Yoshihiro Hisa | 2016-05-03 |
| 9257577 | Light receiving element | Matobu Kikuchi, Ryota Takemura, Kazuki Yamaji | 2016-02-09 |
| 8698268 | Avalanche photodiode and method for manufacturing the avalanche photodiode | Eiji Yagyu, Eitaro Ishimura | 2014-04-15 |
| 8482091 | Light receiving element | Norio Okada | 2013-07-09 |
| 8399945 | Semiconductor light receiving element | Ryota Takemura | 2013-03-19 |
| 8035181 | Semiconductor photodetector with improved quantum efficiency as a function of detected light wavelength | Eitaro Ishimura | 2011-10-11 |
| 7928472 | Optical semiconductor device with a distributed Bragg reflector layer | Eitaro Ishimura, Eiji Yagyu | 2011-04-19 |
| 7910953 | Optical semiconductor device | Eitaro Ishimura, Eiji Yagyu | 2011-03-22 |
| 7893460 | Semiconductor light detecting element including first and second multilayer light reflective structures sandwiching and contacting a light absorptive layer | Eitaro Ishimura | 2011-02-22 |
| 7875943 | Semiconductor photoreceptor device | Eitaro Ishimura | 2011-01-25 |
| 7855400 | Semiconductor light detecting element and method for manufacturing the semiconductor light detecting element | Eitaro Ishimura | 2010-12-21 |
| 7808065 | Semiconductor light receiving element | Eitaro Ishimura | 2010-10-05 |
| 7719028 | Semiconductor light-receiving device and manufacturing method thereof | Eiji Yagyu, Eitaro Ishimura | 2010-05-18 |
| 7675130 | Waveguide photodetector | — | 2010-03-09 |
| 7557418 | Semiconductor photoreceptor device | Eitaro Ishimura | 2009-07-07 |
| 7538367 | Avalanche photodiode | Eiji Yagyu, Eitaro Ishimura | 2009-05-26 |
| 7462889 | Avalanche photodiode | Eiji Yagyu, Nobuyuki Tomita, Eitaro Ishimura | 2008-12-09 |
| 7415185 | Buried-waveguide-type light receiving element and manufacturing method thereof | Eitaro Ishimura | 2008-08-19 |
| 7345325 | Avalanche photodiode | Eitaro Ishimura, Eiji Yagyu, Nobuyuki Tomita | 2008-03-18 |
| 7259408 | Avalanche photodiode | Eiji Yagyu, Nobuyuki Tomita, Eitaro Ishimura | 2007-08-21 |
| 7187013 | Avalanche photodiode | Eitaro Ishimura, Eiji Yagyu, Nobuyuki Tomita | 2007-03-06 |
| 7038251 | Semiconductor device | Eitaro Ishimura, Eiji Yagyu, Nobuyuki Tomita | 2006-05-02 |
| 7031587 | Waveguide type photoreceptor device with particular thickness ratio | Eitaro Ishimura | 2006-04-18 |