Issued Patents 1989
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880915 | Method for purifying a physiologically active substance produced by recombinant DNA technique | Junichi Kajihara, Takao Kiyota | 1989-11-14 |
| 4880096 | Bill validator | Osamu Kobayashi, Ryoji Yamagishi | 1989-11-14 |
| 4879725 | Semiconductor laser device having extended facet life | Hidenori Kawanishi, Masahiro Yamaguchi, Taiji Morimoto, Shinji Kaneiwa | 1989-11-07 |
| 4864585 | External cavity type semiconductor laser apparatus | Shigeki Maei, Osamu Yamamoto, Hidenori Kawanishi, Nobuyuki Miyauchi | 1989-09-05 |
| 4860305 | External cavity type semiconductor laser apparatus | Nobuyuki Miyauchi, Hidenori Kawanishi, Shigeki Maei, Osamu Yamamoto | 1989-08-22 |
| 4849319 | Silver halide photographic light-sensitive material and method of forming super-high contrast negative image using the photographic material | Nobuaki Inoue, Senzo Sasaoka | 1989-07-18 |
| 4842957 | Pressure sensor element | Tetsuo Yamamoto, Tenshiro Muta, Yoshisada Hori, Katsushi Kubo | 1989-06-27 |
| 4830825 | Corrosion-resistant copper alloy | Sachio Goto, Hideo Kobayashi, Akira Yasumori, Tsutomu Kimura | 1989-05-16 |
| 4829531 | External resonator type semiconductor laser | Hidenori Kawanishi, Osamu Yamamoto, Nobuyuki Miyauchi, Shigeki Maei | 1989-05-09 |
| 4819244 | Semiconductor laser device | Saburo Yamamoto, Taiji Morimoto | 1989-04-04 |
| 4819245 | Semiconductor laser device having substriped channels for forming an active layer which is thin in an inside portion | Taiji Morimoto, Mototaka Taneya, Saburo Yamamoto | 1989-04-04 |
| 4817109 | External resonator type semiconductor laser apparatus | Nobuybuki Miyauchi, Osamu Yamamoto, Saburo Yamamoto, Shigeki Maei | 1989-03-28 |
| 4815089 | Semiconductor laser | Nobuyuki Miyauchi, Shigeki Maei, Osamu Yamamoto, Taiji Morimoto, Saburo Yamamoto | 1989-03-21 |
| 4811350 | Semiconductor laser apparatus | Osamu Yamamoto, Shigeki Maei, Hidenori Kawanishi, Nobuyuki Miyauchi | 1989-03-07 |
| 4809966 | Bill validator having constant spring bill accumulation mechanism | Osamu Kobayashi | 1989-03-07 |
| 4806778 | Micro-displacement measuring apparatus using a semiconductor laser | Osamu Yamamoto, Sadayoshi Matsui, Haruhisa Takiguchi, Nobuyuki Miyauchi | 1989-02-21 |
| 4803695 | Semiconductor laser apparatus having an external reflecting means | Osamu Yamamoto, Saburo Yamamoto | 1989-02-07 |
| 4798779 | Process for forming an image by silver salt diffusion transfer | Yoshio Idota, Yukio Karino, Hideki Tomiyama | 1989-01-17 |