Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12287592 | Image forming method and image forming system | Kazumi OURA, Hiroshi Nagasawa, Koji Shibata, Akihiko Itami, Makoto Nomiya +1 more | 2025-04-29 |
| 10739691 | Electrostatic image developing toner and developer | Takanari Kayamori, Naoya Tonegawa, Atsushi Iioka | 2020-08-11 |
| 10564558 | Electrostatic charge image developing toner and two-component developer | Kouji Sugama, Kazumi OURA, Ikuko Sakurada | 2020-02-18 |
| 10146147 | Magenta toner for electrostatic charge image development | Takanari Kayamori, Naoya Tonegawa, Kouji Izawa, Atsushi Iioka | 2018-12-04 |
| 10061219 | Electrostatic charge image developing white toner, manufacturing method thereof, image forming apparatus, and image forming method | Takanari Kayamori, Naoya Tonegawa, Kouji Izawa, Atsushi Iioka | 2018-08-28 |
| 10031433 | Electrostatic charge image developing toner | Atsushi Iioka, Takanari Kayamori, Naoya Tonegawa, Kouji Sekiguchi | 2018-07-24 |
| 9971266 | Method of producing toner for developing electrostatic images | Naoya Tonegawa, Takanari Kayamori, Kouji Sekiguchi, Atsushi Iioka | 2018-05-15 |
| 9933720 | Electrostatic image developing toner | Takanari Kayamori, Naoya Tonegawa, Kouji Sekiguchi, Atsushi Iioka | 2018-04-03 |
| 9921506 | Electrophotographic image forming method and full color toner set for developing electrostatic image | Shiro Hirano, Naoya Tonegawa, Kouji Sekiguchi, Atsushi Iioka | 2018-03-20 |
| 9703219 | Electrostatic image developing toner | Takanari Kayamori, Naoya Tonegawa, Kouji Sekiguchi, Atsushi Iloka | 2017-07-11 |
| 8497058 | Image forming method and method of recycling image forming material | Mitsutoshi Nakamura, Shigenori Kouno | 2013-07-30 |
| 8431293 | Method of recycling image forming material | Mitsutoshi Nakamura, Shigenori Kouno | 2013-04-30 |
| 8431320 | Toner manufacturing method | Hiroyuki Kozuru, Noboru Ueda | 2013-04-30 |
| 8381764 | Check valve | Yuichi Takeda | 2013-02-26 |
| 8270884 | Image forming method using two pressure steps | Shigenori Kouno, Mitsutoshi Nakamura | 2012-09-18 |
| 8080359 | Image forming method | Asao Matsushima, Noboru Ueda, Go Yamaguchi | 2011-12-20 |
| 8057978 | Toner for electrophotography | Go Yamaguchi, Yoshiaki Kobayashi, Asao Matsushima, Noboru Ueda | 2011-11-15 |
| 8037899 | Backflow preventer | Yuichi Takeda | 2011-10-18 |
| 7947420 | Image forming method | Asao Matsushima, Noboru Ueda, Go Yamaguchi, Takayuki Suzuki | 2011-05-24 |