Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788522 | Image sensing | Masanori Itagaki, Kouji Mori, Tatsumi Ishiwata | 1988-11-29 |
| 4648687 | Optical switching device | Masaaki Mori, Jiro Koyama, Masamitsu Haruna | 1987-03-10 |
| 4645293 | Optical waveguide coupler having a grating electrode | Akihito Tanji, Masamitsu Masuda, Jiro Koyama | 1987-02-24 |