Issued Patents All Time
Showing 126–133 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139330 | Standard samples and methods of instrumental measurement of ASTM color of petroleum products using said samples | Akihiko Niizawa | 1992-08-18 |
| 5139329 | Standard samples and methods of instrumental measurement of Saybolt color of petroleum products using said samples | Akihiko Niizawa | 1992-08-18 |
| 4951290 | Semiconductor laser device | Taiji Morimoto, Shinji Kaneiwa, Hiroshi Hayashi, Hidenori Kawanishi | 1990-08-21 |
| 4926431 | Semiconductor laser device which is stable for a long period of time | Hidenori Kawanishi, Hiroshi Hayashi, Taiji Morimoto, Shinji Kaneiwa | 1990-05-15 |
| 4891816 | Integrated semiconductor laser device | Toshihiko Yoshida, Taiji Morimoto, Shinji Kaneiwa | 1990-01-02 |
| 4879725 | Semiconductor laser device having extended facet life | Hidenori Kawanishi, Hiroshi Hayashi, Taiji Morimoto, Shinji Kaneiwa | 1989-11-07 |
| 4853936 | Index guided semiconductor laser device | Sadayoshi Matsui, Shinji Kaneiwa, Taiji Morimoto, Mototaka Taneya, Mitsuhiro Matsumoto | 1989-08-01 |
| 4182690 | Emulsion breaking material | Hideaki Suzuki, Tomoyoshi Ono, Wataru Yamamoto | 1980-01-08 |