Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871909 | Optical switch device employing fluorescent substance in combination with a radioactive element as a light source | — | 1989-10-03 |
| 4847508 | Photo-coupler switch with delay function using a fluorescent substance as the delay means | — | 1989-07-11 |
| 4844138 | Automobile tire pneumatic pressure controlling apparatus | — | 1989-07-04 |
| 4833540 | Image processing apparatus | — | 1989-05-23 |
| 4829192 | Photo-coupler with delay function using a fluorescent substance as the delay means | — | 1989-05-09 |
| 4820022 | Liquid crystal antidazzle mirror | Hiroshi Demura, Kazumi Hayashi, Yasuo Oyama, Kouji Takizawa, Shigeru Iguchi | 1989-04-11 |
| 4799769 | Liquid crystal antidazzle mirror | Hiroshi Demura, Akira Kawahashi, Kazumi Hayashi | 1989-01-24 |
| 4795900 | Optical switch device employing a fluorescent substance with a radioactive element as a light source | — | 1989-01-03 |