Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12379678 | Carrier for forming electrophotographic image, developer, image forming method, image forming apparatus, and process cartridge | Kousuke Suzuki, Tohru Suganuma, Masashi Nagayama, Minoru Masuda, Hiroyuki Kishida +2 more | 2025-08-05 |
| 12306582 | Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge | Masashi Nagayama, Kousuke Suzuki, Masahiro Seki, Hiroyuki Kishida | 2025-05-20 |
| 11256188 | Toner, toner stored unit, and image forming apparatus | Akihiro Kaneko, Kazumi Suzuki, Hisashi Nakajima, Yoshitaka Yamauchi, Kohtaroh Ogino +1 more | 2022-02-22 |
| 11215936 | Toner, image forming apparatus, image forming method, and toner accommodating unit | Yoshitaka Yamauchi | 2022-01-04 |
| 10599059 | Toner, image forming apparatus, image forming method, and toner storage unit | Kazumi Suzuki, Hisashi Nakajima, Yoshitaka Yamauchi, Kohtaroh Ogino, Akihiro Kaneko | 2020-03-24 |
| 10459360 | Toner and image forming method | Hisashi Nakajima, Kazumi Suzuki, Yoshitaka Yamauchi | 2019-10-29 |
| 10254668 | Toner for electrophotography, developer for electrophotography, image forming apparatus, and process cartridge | Yoshitaka Yamauchi, Hisashi Nakajima, Kazumi Suzuki | 2019-04-09 |