Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888561 | Amplifier and display using the former | Ryushi Shimokawa, Seiichi Ueda, Kenkichi Yamashita, Kazuo Kato, Hideo Sato | 1989-12-19 |
| 4755768 | Amplifier and display using the former | Ryushi Shimokawa, Seiichi Ueda, Kenkichi Yamashita, Kazuo Kato, Hideo Sato | 1988-07-05 |
| 4646029 | Variable-gain amplifying circuit | Kazuo Kato | 1987-02-24 |
| 4638308 | CRT picture display apparatus | Hiroshi Kuwabara, Jushi Ide, Kenkichi Yamashita | 1987-01-20 |
| 4603008 | Critical temperature sensitive resistor material | Hiromi Tosaki, Hideo Arima, Akira Ikegami | 1986-07-29 |
| 4438366 | Cathode-ray tube driving apparatus | — | 1984-03-20 |
| 4401922 | Convergence distortion correction method and apparatus for color cathode-ray tube | Hiroshi Kuwahara, Jushi Ide, Kenkichi Yamashita, Koji Takahashi | 1983-08-30 |