Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9989245 | Superheated steam treatment apparatus | — | 2018-06-05 |
| 7430854 | Air fuel ratio controller for internal combustion engine for stopping calculation of model parameters when engine is in lean operation | Yuji Yasui, Akihiro Shinjo, Tatsuhito Esaki | 2008-10-07 |
| 6453664 | Control system for internal combustion engine | Atsushi Ishii, Hiroshi Maruyama | 2002-09-24 |
| 5878733 | Air-fuel ratio control system for internal combustion engines | Akira Kato, Hiroki Munakata, Yuh Yoshii | 1999-03-09 |
| 5607751 | Recording medium, method of formimg image using the same, and method of producing print using the same | Teigo Sakakibara, Kiyoshi Sakai, Hiroshi Aoto, Shunichiro Nishida | 1997-03-04 |
| 5601913 | Transfer material carrying member and image forming apparatus | Noriko Ohtani, Kiyoshi Sakai, Teigo Sakakibara, Yuichi Hashimoto | 1997-02-11 |
| 5534581 | Transfer material carrying member and image forming apparatus making use of the same | Noriko Ohtani, Kiyoshi Sakai, Teigo Sakakibara, Masahiro Inoue, Nobuhiko Takekoshi +5 more | 1996-07-09 |
| 5418099 | Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same | Shinya Mayama, Toshiyuki Yoshihara, Nobuyuki Hanami, Kiyoshi Sakai, Hideki Anayama +3 more | 1995-05-23 |
| 5371577 | Ozone filter used in electrophotographic apparatus including catalyst of CuO, MnO.sub.2, and a water-soluble polymer | Koji Yamazaki, Kiyoshi Sakai, Teigo Sakakibara, Noriko Hirayama | 1994-12-06 |
| 5352552 | Image-bearing member and apparatus including same | Akio Maruyama, Kiyoshi Sakai, Shin Nagahara, Noriko Ohtani, Seiko Nakano | 1994-10-04 |
| 5296322 | Electrophotographic photosensitive member and apparatus using same | Takashi Koyama, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori | 1994-03-22 |
| 5294508 | Electrophotographic photosensitive member with polyether polyols-polyisocyanate intermediate layer and apparatus | Takashi Koyama, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori | 1994-03-15 |
| 5292603 | Image holding member and apparatus which uses the same | Kiyoshi Sakai, Seiko Nakano | 1994-03-08 |
| 5283142 | Image-holding member, and electrophotographic apparatus, apparatus unit, and facsimile machine employing the same | Shinya Mayama, Kiyoshi Sakai, Noriko Ohtani, Katsumi Aoki, Noriyoshi Ogawa +1 more | 1994-02-01 |
| 5272508 | Electrophotographic photosensitive member and apparatus incorporating the same | Teigo Sakakibara, Kiyoshi Sakai, Noriko Ohtani | 1993-12-21 |
| 5272029 | Image-bearing member and apparatus including same | Kiyoshi Sakai, Seiko Nakano | 1993-12-21 |
| 5258252 | Image-bearing member having a surface layer of a high-melting point polyester resin and cured resin | Kiyoshi Sakai, Seikoh Nakano | 1993-11-02 |
| 5254423 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit and facsimile machine having the photosensitive member | Shinya Mayama, Toshiyuki Yoshihara, Kiyoshi Sakai, Hideki Anayama, Hideyuki Ainoya +1 more | 1993-10-19 |
| 5250990 | Image-bearing member for electrophotography and blade cleaning method | Kiyoshi Sakai, Teigo Sakakibara, Junichi Kishi | 1993-10-05 |
| 5246806 | Electrophotographic photosensitive member and apparatus using same | Takashi Koyama, Yuichi Hashimoto, Tetsuo Shiraiwa, Shigeo Mori | 1993-09-21 |
| 5190837 | Image holder member having resin layer of metal-coated fine resin particles and binder resin | Kiyoshi Sakai, Hisami Tanaka, Teigo Sakakibara, Takashi Koyama | 1993-03-02 |
| 5079117 | Electrophotographic photosensitive member with electrical conductor containing polyether-polyurethane layer | Takashi Koyama, Hideki Anayama, Yuichi Hashimoto, Noriko Hirayama, Kiyoshi Sakai +2 more | 1992-01-07 |
| 4948690 | Electrophotographic photosensitive member with fine spherical resin powder | Masafumi Hisamura, Hisami Tanaka | 1990-08-14 |
| 4910536 | Electrophotographic photosensitive member, electrophotographic apparatus and process for forming an electrophotographic image using laser and special organic photoconductor | Masami Okunuki, Teigo Sakakibara, Noboru Kashimura | 1990-03-20 |
| 4835079 | Electrophotographic photosensitive member and electrophotographic process using the same | Kiyoshi Sakai, Masami Okunuki | 1989-05-30 |