Issued Patents 1997
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693445 | Electrostatic image developing toner | Hiroyoshi Yamaga, Noboru Akuzawa | 1997-12-02 |
| 5667426 | Method of polishing the end face of a ferrule on an optical connector | Kohji Minami, Hiroyuki Tokita, Keiichi Ishiyama | 1997-09-16 |
| 5663823 | Optical transmission system, optical transmission module, and an optical modulator | — | 1997-09-02 |
| 5654812 | Light-receiving device, optoelectronic transmission apparatus, and optical demultiplexing method | — | 1997-08-05 |
| 5651414 | Heat-pipe type cooling apparatus | Osamu Suzuki, Heikichi Kuwahara, Kazumasa Fujioka, Syuuji Saitoo, Koichi Isaka | 1997-07-29 |
| 5645967 | Charge controlling agent composition and toner containing said composition | Sinichi Sato, Hiroyoshi Yamaga, Sigeo Hosaka | 1997-07-08 |
| 5644375 | Ophthalmic apparatus provided with alignment mechanism preliminary class | — | 1997-07-01 |
| 5642371 | Optical transmission apparatus | Masaki Tohyama | 1997-06-24 |
| 5641884 | Spiro-naphtho-oxazine compound and photosensitive materials using the same | Akira Utsunomiya, Shinichi Sato, Hiroyoshi Yamaga | 1997-06-24 |
| 5604762 | Semiconductor optical device | Motoyasu Morinaga, Masaki Tohyama | 1997-02-18 |