Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557566 | Spherical lens for spherically symmetrical graded refractive index distribution provided with rod clad | Keisuke Kikuchi, Takitaro Morikawa, Junichi Shimada | 1985-12-10 |
| 4460977 | Optical memory playback apparatus | Junichi Shimada, Yoshinobu Mitsuhashi, Keisuke Kikuchi | 1984-07-17 |
| 4449204 | Information processing apparatus using a semiconductor laser diode | Junichi Shimada, Yoshinobu Mitsuhashi, Takitaro Morikawa, Shuichi Mitsuzuka | 1984-05-15 |
| 4431308 | Laser angular speed detector employing non-optical output | Yoshinobu Mitsuhashi, Junichi Shimada, Yukinobu Nakamura | 1984-02-14 |
| 4422733 | Cladded spherical lens having uneven refractive index | Keisuke Kikuchi, Takitaro Morikawa, Junichi Shimada | 1983-12-27 |
| 4405236 | Semiconductor ring laser apparatus | Yoshinobu Mitsuhashi, Junichi Shimada, Yukinobu Nakamura | 1983-09-20 |
| 4190775 | Optical memory playback apparatus | Junichi Shimada, Takitaro Morikawa, Yoshinobu Mitsuhashi, Satoshi Ishihara, Atsuya Seko +1 more | 1980-02-26 |