Issued Patents All Time
Showing 151–156 of 156 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637372 | Phase change optical recording medium | Junji Tominaga, Ryo Inaba, Masanori Kosuda | 1997-06-10 |
| D300926 | Key telephone set | Kenichi Morikawa, Masafuku Akatsu, Seizo Ohta, Takeshi Nakatani | 1989-05-02 |
| D298939 | Key telephone set with speakerphone and visual display panel | Kenichi Morikawa, Masafuku Akatsu, Seizo Ohta, Takeshi Nakatani | 1988-12-13 |
| D298938 | Key telephone set with speaker phone | Kenichi Morikawa, Masafuku Akatsu, Seizo Ohta, Takeshi Nakatani | 1988-12-13 |
| 4733103 | Light sensitive switching circuit | Hiromu Itoh, Junichiro Kikunaga, Kenji Hachimura | 1988-03-22 |
| 4580132 | Method of and apparatus for detecting electrically conductive material in glass fibers or articles made of glass fibers | Toru Dogakinai | 1986-04-01 |