Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9076906 | Hetero-junction bipolar phototransistor with improved noise characteristic | SungWoo Choi, Nobuyuki Hayama, Katsuhiko Nishida | 2015-07-07 |
| 8659039 | Semiconductor light emitting diode | Xuelun Wang | 2014-02-25 |
| 8610170 | Compound semiconductor light-receiving element array | Katsuhiko Nishida | 2013-12-17 |
| 8530933 | Photo transistor | — | 2013-09-10 |
| 8415713 | Photo-field effect transistor and its production method | — | 2013-04-09 |
| 7759698 | Photo-field effect transistor and integrated photodetector using the same | — | 2010-07-20 |
| 7515622 | Quantum nanostructure semiconductor laser | — | 2009-04-07 |
| 7463661 | Quantum nano-structure semiconductor laser | — | 2008-12-09 |
| 7221005 | Negative resistance field-effect device | Takeyoshi Sugaya, Kee Youn Jang, Yoshinobu Sugiyama | 2007-05-22 |
| 7015453 | Photodetector | Yasushi Nagamune, Takeyoshi Sugaya | 2006-03-21 |
| 6036773 | Method for growing Group III atomic layer | Xue Wang | 2000-03-14 |
| 5493125 | Charged beam apparatus | Shigeo Okayama, Masanori Komuro, Hiroshi Hiroshima | 1996-02-20 |
| 5068869 | Surface-emitting laser diode | Shing-Chung Wang, Shyh-Hsing Wang, Wei-Lun Hsin | 1991-11-26 |
| 4500204 | Scanning-type lithographic and image-pickup device using optical fiber | — | 1985-02-19 |