Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790701 | Method of manufacturing a multi-wavelength semiconductor image sensor | Keitaro Shigenaka | 2004-09-14 |
| 6700111 | Multi-wavelength semiconductor image sensor | Keitaro Shigenaka | 2004-03-02 |
| 6465860 | Multi-wavelength semiconductor image sensor and method of manufacturing the same | Keitaro Shigenaka | 2002-10-15 |
| 5497029 | Tin-indium antimonide infrared detector | Katsuyoshi Fukuda, Keitaro Shigenaka, Keijiro Hirahara | 1996-03-05 |