Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5725626 | Method for manufacturing an optical element by bonding a plurality of elements | — | 1998-03-10 |
| 5711780 | Mold for molding optical element | — | 1998-01-27 |
| 5705272 | Heating member and heat fixing apparatus using the same | — | 1998-01-06 |
| 5683480 | Method of bonding two prisms with a hydrolysis product | — | 1997-11-04 |
| 5676723 | Mold for forming an optical element | Keiji Hirabayashi | 1997-10-14 |
| 5662999 | Mold and method of manufacturing the same | Tetsuo Kuwabara, Masaaki Yokota | 1997-09-02 |
| 5382274 | Mold with film of 0-5 atom % hydrogen and molding method utilizing same | Kiyoshi Yamamoto, Keiji Hirabayashi, Noriko Kurihara, Keiko Ikoma | 1995-01-17 |
| 5380349 | Mold having a diamond layer, for molding optical elements | Keiji Hirabayashi, Keiko Ikoma, Noriko Kurihara, Masaaki Matsushima, Kiyoshi Yamamoto | 1995-01-10 |
| 5275967 | Electric field light-emitting device | Keiji Hirabayashi, Noriko Kurihara, Keiko Ikoma | 1994-01-04 |
| 5210430 | Electric field light-emitting device | Keiji Hirabayashi, Noriko Kurihara, Keiko Ikoma | 1993-05-11 |
| 5202156 | Method of making an optical element mold with a hard carbon film | Kiyoshi Yamamoto, Keiji Hirabayashi, Noriko Kurihara, Keiko Ikoma | 1993-04-13 |
| 5026415 | Mold with hydrogenated amorphous carbon film for molding an optical element | Kiyoshi Yamamoto, Keiji Hirabayashi, Noriko Kurihara, Keiko Ikoma | 1991-06-25 |
| 4935303 | Novel diamond-like carbon film and process for the production thereof | Keiko Ikoma, Noriko Kurihara, Keiji Hirabayashi, Kenji Ando, Susumu Ito | 1990-06-19 |
| 4932331 | Novel single-bond carbon film and process for the production thereof | Noriko Kurihara, Keiko Ikoma, Keiji Hirabayashi, Susumu Ito | 1990-06-12 |
| 4714308 | Ultraviolet reflecting mirror | Mitsuharu Sawamura | 1987-12-22 |
| 4643518 | Metallic rotational polygon mirror | — | 1987-02-17 |