Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10942471 | Electrophotographic member having a surface layer with a cross-linked urethane resin-containing matrix, process cartridge, and apparatus | Ryo Sugiyama, Kazuaki Nagaoka, Kenta Matsunaga, Toru Ishii, Hideya Arimura +4 more | 2021-03-09 |
| 10895824 | Developing roller, process cartridge and electrophotographic image forming apparatus | Ryo Sugiyama, Masashi Uno, Tomoya Uesugi, Kenta Matsunaga, Wataru Moriai | 2021-01-19 |
| 10627738 | Developer regulating member, developing device, process cartridge and electrophotographic image forming apparatus | Mitsuru Okuda | 2020-04-21 |
| 10078291 | Developing apparatus having a projecting regulating member and process cartridge | Takaaki Shinkawa, Kazuhiro Okubo, Jun Miura, Ryo Sugiyama, Mitsuru Okuda | 2018-09-18 |
| 10073374 | Developing apparatus having multi-part regulating member, process cartridge and electrophotographic image forming apparatus | Ryo Sugiyama, Mitsuru Okuda | 2018-09-11 |
| 9989883 | Developing apparatus, process cartridge and electrophotographic image forming apparatus | Mitsuru Okuda, Ryo Sugiyama | 2018-06-05 |
| 9952532 | Developing apparatus, electrophotographic process cartridge, and electrophotographic image forming apparatus | Ryo Sugiyama, Yuji Sakurai, Kazutoshi Ishida, Mitsuru Okuda | 2018-04-24 |
| 9411262 | Developer quantity control blade having blade member composed of a thermoplastic elastomer composition and image forming apparatus | Mitsuru Okuda, Hiroshi Morishita, Sinya Tokitou | 2016-08-09 |
| 8932419 | Urethane (meth)acrylate oligomer and sheet using the same | Kazutoshi Doki, Osamu Kawata, Yoshihiro Tani | 2015-01-13 |
| 8697240 | Photocurable resin composition and cured product of same, resin sheet and production method for same, and display device | Futoshi Oikawa, Hiromasa Kawai | 2014-04-15 |
| 5408311 | Method for measuring a refracting power of an optical system and its apparatus | Toshiyuki Suzuki, Kazuhito Miyajima | 1995-04-18 |