Issued Patents 1989
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889586 | Method for polishing AlGaAs surfaces | Masahiro Noguchi | 1989-12-26 |
| 4883724 | Control unit of fuel cell generating system | — | 1989-11-28 |
| 4873155 | Fuel cell manifolds | Toshio Hirota, Takashi Ohuchi | 1989-10-10 |
| 4864585 | External cavity type semiconductor laser apparatus | Hiroshi Hayashi, Shigeki Maei, Hidenori Kawanishi, Nobuyuki Miyauchi | 1989-09-05 |
| 4860305 | External cavity type semiconductor laser apparatus | Nobuyuki Miyauchi, Hidenori Kawanishi, Shigeki Maei, Hiroshi Hayashi | 1989-08-22 |
| 4852961 | Nonlinear optical waveguide device including grating for changing of the wavelength of light | Toshihiko Yoshida | 1989-08-01 |
| 4829531 | External resonator type semiconductor laser | Hidenori Kawanishi, Nobuyuki Miyauchi, Shigeki Maei, Hiroshi Hayashi | 1989-05-09 |
| 4819443 | Expansion valve | Masaru Watanabe | 1989-04-11 |
| 4817109 | External resonator type semiconductor laser apparatus | Nobuybuki Miyauchi, Hiroshi Hayashi, Saburo Yamamoto, Shigeki Maei | 1989-03-28 |
| 4815089 | Semiconductor laser | Nobuyuki Miyauchi, Shigeki Maei, Taiji Morimoto, Hiroshi Hayashi, Saburo Yamamoto | 1989-03-21 |
| 4811350 | Semiconductor laser apparatus | Shigeki Maei, Hiroshi Hayashi, Hidenori Kawanishi, Nobuyuki Miyauchi | 1989-03-07 |
| 4806778 | Micro-displacement measuring apparatus using a semiconductor laser | Hiroshi Hayashi, Sadayoshi Matsui, Haruhisa Takiguchi, Nobuyuki Miyauchi | 1989-02-21 |
| 4803695 | Semiconductor laser apparatus having an external reflecting means | Hiroshi Hayashi, Saburo Yamamoto | 1989-02-07 |
| 4803440 | Automatic electrical power control circuit | Toshinori Hotta | 1989-02-07 |
| 4802045 | Recording tape cartridge | Shigeo Sasaki, Shinichi Kagano | 1989-01-31 |