Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707726 | Aluminum pipe production process, electrophotographic photosensitive member produced by the production process, and electrophotographic apparatus having the electrophotographic photosensitive member | Mutsuo Ohtaka, Shinichi Shibayama, Yosuke Okubo, Tatsu Nakajima | 1998-01-13 |
| 5677095 | Electrophotographic photosensitive member | Toshihiro Kikuchi, Akio Maruyama, Noriko Ohtani, Shin Nagahara, Teigo Sakakibara +1 more | 1997-10-14 |
| 5669047 | Charging member, electrophotographic apparatus and charging method using the same | Masami Okuda, Junichi Kishi, Hiroyuki Ohmori, Takashi Koyama, Masafumi Hisamura | 1997-09-16 |
| 5595848 | Electrophotographic photosensitive member produced from aluminum pipe | Mutsuo Ohtaka, Shinichi Shibayama, Yosuke Okubo, Tatsu Nakajima | 1997-01-21 |
| 5484673 | Electrophotographic photosensitive member | Toshihiro Kikuchi, Akio Maruyama, Noriko Ohtani, Shin Nagahara, Teigo Sakakibara +1 more | 1996-01-16 |
| 5358987 | Polysilane compositions | Masahiro Kanai, Harumi Sakou, Tatuyuki Aoike, Kouichi Matuda, Keishi Saitou +2 more | 1994-10-25 |
| 5354385 | Solar cell | Yuichi Hashimoto, Teigo Sakakibara | 1994-10-11 |
| 5344501 | Solar cell | Yuichi Hashimoto | 1994-09-06 |
| 5332635 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same | — | 1994-07-26 |
| 5236798 | Electrophotographic light receiving member having a photoconductive layer formed of non-single crystal silicon material and a surface layer containing polysilane compound | Tatsuyuki Aoike, Koichi Matsuda, Keishi Saitoh, Mitsuyuki Niwa, Masafumi Sano | 1993-08-17 |
| 5220181 | Photovoltaic element of junction type with an organic semiconductor layer formed of a polysilane compound | Masahiro Kanai, Harumi Sakou | 1993-06-15 |
| 5190837 | Image holder member having resin layer of metal-coated fine resin particles and binder resin | Kiyoshi Sakai, Naoto Fujimura, Teigo Sakakibara, Takashi Koyama | 1993-03-02 |
| 5159042 | Polysilane compounds and electrophotographic photosensitive members with the use of said compounds | Harumi Sakou | 1992-10-27 |
| 5112708 | Member for charging with surface layer of N-alkoxymethylated nylon effecting charging at lower voltage | Masami Okunuki, Hiroyuki Ohmori, Masafumi Hisamura | 1992-05-12 |
| 5089851 | Charging member | Masami Okunuki | 1992-02-18 |
| 5008706 | Electrophotographic apparatus | Hiroyuki Ohmori, Masami Okunuki | 1991-04-16 |
| 4975745 | Electrophotographic photosensitive member | Hideo Kawahara | 1990-12-04 |
| 4948690 | Electrophotographic photosensitive member with fine spherical resin powder | Masafumi Hisamura, Naoto Fujimura | 1990-08-14 |
| 4877701 | Photosensitive member for electrophotography | Masaaki Hiro, Tomohiro Kimura, Noboru Kashimura, Shigemori Tanaka, Hitoshi Tohma +1 more | 1989-10-31 |
| 4504560 | Electrophotoconductor for electrophotography comprising a disazo compound | Osamu Takenouchi, Khe Nguyen Chanh, Tatsuo Kawara | 1985-03-12 |
| 4465753 | Indoline electrophotoconductor | Osamu Takenouchi, Tatsuo Kawara | 1984-08-14 |
| 4431973 | Operational amplifier | Kunihiko Goto, Kazuhiro Kobayashi, Akihiko Ito, Tadahiro Saito | 1984-02-14 |
| 4429281 | Integrator for a switched capacitor-filter | Akihiko Ito, Kazuhiro Kobayashi, Norio Ueno | 1984-01-31 |
| 4417158 | Clock generator circuit | Akihiko Ito, Yoshihisa Takayama, Seiji Kato | 1983-11-22 |
| 4393318 | Sample and hold circuit | Masayuki Takahashi, Kunihiko Goto, Michinobu Ohhata | 1983-07-12 |