Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10061226 | Image forming apparatus and image forming method | Kazuaki Kamihara, Yuuichiroh Uematsu, Tetsuya Muto, Tomohide Takenaka, Keita Sone +5 more | 2018-08-28 |
| 9989876 | Image forming apparatus and method for calculating a toner degradation rate | Tadashi Kasai, Jun Hitosugi, Takamasa Ozeki, Makoto Yasuda, Kunio Hasegawa +6 more | 2018-06-05 |
| 9921541 | Developing device, and image forming apparatus and process cartridge incorporating same | Yasunobu Shimizu, Akira Azami, Masaaki Yamada, Yoshiko Ogawa, Toshio Koike +4 more | 2018-03-20 |
| 9684259 | Image forming apparatus | Takatsugu Komori, Emiko Shiraishi, Tadashi Kasai, Takamasa Ozeki, Jun Hitosugi +4 more | 2017-06-20 |
| 9599946 | Image forming apparatus | Tadashi Kasai, Jun Hitosugi, Takamasa Ozeki, Makoto Yasuda, Kunio Hasegawa +4 more | 2017-03-21 |
| 9588460 | Image forming apparatus | Tadashi Kasai, Jun Hitosugi, Kunio Hasegawa, Takamasa Ozeki, Emiko Shiraishi +3 more | 2017-03-07 |
| 9513594 | Protective layer forming device and image forming apparatus | Kunio Hasegawa, Hiroshi Nakai, Kenji Komito, Tadashi Kasai, Takamasa Ozeki +6 more | 2016-12-06 |
| 9488931 | Image forming apparatus | Makoto Yasuda, Jun Hitosugi, Takamasa Ozeki, Emiko Shiraishi, Wakana Itoh +14 more | 2016-11-08 |
| 9316987 | Image forming apparatus and image forming method | Jun Hitosugi, Takamasa Ozeki, Emiko Shiraishi, Wakana Itoh, Hitoshi Yamamoto +4 more | 2016-04-19 |
| 9310743 | Image forming apparatus and cleaning of image forming apparatus | Emiko Shiraishi, Tadashi Kasai, Makoto Yasuda, Yuichi Aizawa, Hitoshi Yamamoto | 2016-04-12 |
| 9280125 | Image forming apparatus | Wakana Itoh, Tadashi Kasai, Takamasa Ozeki, Jun Hitosugi, Emiko Shiraishi +4 more | 2016-03-08 |
| 9239542 | Image forming apparatus | Tadashi Kasai, Makoto Yasuda, Hitoshi Yamamoto, Emiko Shiraishi, Yuichi Aizawa | 2016-01-19 |
| 9128428 | Image forming apparatus which includes a colorless toner image forming device | Tadashi Kasai, Masato Iio, Makoto Yasuda, Yuichi Aizawa, Hitoshi Yamamoto | 2015-09-08 |