Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10191404 | Charging member, process cartridge, and electrophotographic apparatus | Kenichi Yamauchi, Masataka Kodama | 2019-01-29 |
| 10078286 | Charging member, process cartridge and electrophotographic apparatus | Kineo Takeno, Hiroshi Mayuzumi, Masataka Kodama, Noriyuki Doi, Kenichi Yamauchi +1 more | 2018-09-18 |
| 10036971 | Charging member, process cartridge, and electrophotographic image forming apparatus | Noriyuki Doi, Kineo Takeno, Hiroshi Mayuzumi, Masataka Kodama, Kenichi Yamauchi +1 more | 2018-07-31 |
| 9897931 | Electroconductive member for electrophotography, process cartridge, and electrophotographic image-forming apparatus | Satoru Nishioka, Kazuhiro Yamauchi, Kenichi Yamauchi, Hiroki Masu | 2018-02-20 |
| 9740133 | Charging member, process cartridge and electrophotographic image forming apparatus | Kenichi Yamauchi, Kazuhiro Yamauchi, Satoru Nishioka, Hiroki Masu | 2017-08-22 |
| 9556359 | Method of producing member for electrophotography | Noriyuki Doi, Hiroki Masu, Masataka Kodama, Masahiro Kurachi, Noriaki Kuroda | 2017-01-31 |
| 9442408 | Member for electrophotography, method for producing the same, and image forming apparatus | Kazuhiro Yamauchi, Kenichi Yamauchi, Satoru Nishioka, Hiroki Masu | 2016-09-13 |
| 9442451 | Electroconductive member for electrophotography, process cartridge, and electrophotographic image-forming apparatus | Kazuhiro Yamauchi, Satoru Nishioka, Kenichi Yamauchi, Hiroki Masu | 2016-09-13 |
| 9360789 | Member for electrophotography, process cartridge and image forming apparatus | Hiroki Masu, Kazuhiro Yamauchi, Satoru Nishioka, Kenichi Yamauchi | 2016-06-07 |
| 9081321 | Charging member and electrophotographic apparatus | Masataka Kodama, Taichi Sato, Noriyuki Doi, Masahiro Kurachi, Hiroki Masu +1 more | 2015-07-14 |
| 8526857 | Charging member, process for its production, process cartridge and electrophotographic apparatus | Yuya Tomomizu, Noriaki Kuroda, Masataka Kodama, Hiroki Masu | 2013-09-03 |
| 8503911 | Charging member and method of producing the member, process cartridge, and electrophotographic image-forming apparatus | Noriaki Kuroda, Masataka Kodama, Yuya Tomomizu, Hiroki Masu | 2013-08-06 |