Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12396275 | Photo detection device | Ikuo Kurachi, Hiroshi Takano | 2025-08-19 |
| 12154917 | Semiconductor image sensor | Ikuo Kurachi, Hiroshi Takano | 2024-11-26 |
| 6570189 | Semiconductor device and method of manufacturing the same | Tsutomu Munakata | 2003-05-27 |
| 6562649 | Compound semiconductor light emitting device and process for producing the same | Tsutomu Munakata | 2003-05-13 |
| 6470038 | Compound semiconductor light emitting device and process for producing the same | Tsutomu Munakata | 2002-10-22 |
| 6083813 | Method for forming a compound semiconductor device using a buffer layer over a corrugated surface | — | 2000-07-04 |
| 6013539 | Edge emitting led and method of forming the same | Tsutomu Munakata | 2000-01-11 |
| 6008066 | Method of manufacturing a light emitting diode to vary band gap energy of active layer | Tsutomu Munakata | 1999-12-28 |
| 5994158 | Method of fabricating an abrupt hetero interface by organometallic vapor phase growth | Tsutomu Munakata | 1999-11-30 |
| 5889294 | Edge emitting LED having a selective-area growth optical absorption region | Tsutomu Munakata | 1999-03-30 |
| 5828085 | Light emitting diode having light-emitting and light-absorbing regions | Tsutomu Munakata | 1998-10-27 |
| 5034955 | Superluminescent diode | Masao Kobayashi, Yoji Hosoi, Takashi Tsubota | 1991-07-23 |
| 4975752 | Light-emitting diode | Masao Kobayashi, Takashi Tsubota | 1990-12-04 |