Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153758 | Driving method and apparatus for a pnpn semiconductor device | Kenichi Kasahara, Takahiro Numai | 1992-10-06 |
| 5093875 | Optical interconnection apparatus | Ichiro Ogura, Kenichi Kasahara, Shigeru Kawai | 1992-03-03 |
| 5084748 | Semiconductor optical memory having a low switching voltage | Kenichi Kasahara, Ichiro Ogura, Mitsunori Sugimoto | 1992-01-28 |
| 5065044 | Method for driving a pnpn semiconductor device | Kenichi Kasahara, Ichiro Ogura | 1991-11-12 |
| 5059788 | Optical logic device with PNPN detection and laser diode output | Kenichi Kasahara | 1991-10-22 |
| 5028969 | Semiconductor device for a space modulation matrix and method for driving a space modulation matrix | Kenichi Kasahara, Mitsunori Sugimoto, Keiichi Kubota, Shigeru Kawai, Ichiro Ogura | 1991-07-02 |
| 4952028 | Method for driving an optoelectronic switching device | — | 1990-08-28 |
| 4910571 | Optical semiconductor device | Kenichi Kasahara | 1990-03-20 |
| 4864168 | Process for controlling an optical pnpn thyristor to be driven | Kenichi Kasahara | 1989-09-05 |