Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382274 | Mold with film of 0-5 atom % hydrogen and molding method utilizing same | Kiyoshi Yamamoto, Keiji Hirabayashi, Yasushi Taniguchi, Keiko Ikoma | 1995-01-17 |
| 5380349 | Mold having a diamond layer, for molding optical elements | Yasushi Taniguchi, Keiji Hirabayashi, Keiko Ikoma, Masaaki Matsushima, Kiyoshi Yamamoto | 1995-01-10 |
| 5275967 | Electric field light-emitting device | Yasushi Taniguchi, Keiji Hirabayashi, Keiko Ikoma | 1994-01-04 |
| 5246198 | Diamond crystal coated mold for forming optical elements | — | 1993-09-21 |
| 5210430 | Electric field light-emitting device | Yasushi Taniguchi, Keiji Hirabayashi, Keiko Ikoma | 1993-05-11 |
| 5202571 | Electron emitting device with diamond | Keiji Hirabayashi, Takeo Tsukamoto, Nobuo Watanabe, Masahiko Okunuki | 1993-04-13 |
| 5202156 | Method of making an optical element mold with a hard carbon film | Kiyoshi Yamamoto, Keiji Hirabayashi, Yasushi Taniguchi, Keiko Ikoma | 1993-04-13 |
| 5026415 | Mold with hydrogenated amorphous carbon film for molding an optical element | Kiyoshi Yamamoto, Keiji Hirabayashi, Yasushi Taniguchi, Keiko Ikoma | 1991-06-25 |
| 4991541 | Device and process for treating fine particles | Hiroyuki Sugata, Masao Sugata, Tohru Den, Kenji Ando, Osamu Kamiya | 1991-02-12 |
| 4957061 | Plurality of beam producing means disposed in different longitudinal and lateral directions from each other with respect to a substrate | Kenji Ando, Osamu Kamiya, Masao Sugata, Hiroyuki Sugata, Tohru Den +4 more | 1990-09-18 |
| 4935303 | Novel diamond-like carbon film and process for the production thereof | Keiko Ikoma, Keiji Hirabayashi, Yasushi Taniguchi, Kenji Ando, Susumu Ito | 1990-06-19 |
| 4932331 | Novel single-bond carbon film and process for the production thereof | Keiko Ikoma, Keiji Hirabayashi, Yasushi Taniguchi, Susumu Ito | 1990-06-12 |
| 4898798 | Photosensitive member having a light receiving layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tohru Den, Susumu Ito, Keiji Hirabayashi, Keiko Ikoma +6 more | 1990-02-06 |
| 4897829 | Cardlike optical recording medium | Keiko Ikoma, Keiji Hirabayashi, Susumu Itoh | 1990-01-30 |
| 4892800 | Photosensitive member having a photoconductive layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tatsuo Takeuchi, Hiroshi Satomura, Yoshihiro Oguchi, Akio Maruyama +6 more | 1990-01-09 |