Issued Patents All Time
Showing 1–25 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405545 | Toner and method for producing toner | Tatsuya Saeki, Taiji Katsura | 2025-09-02 |
| 12306572 | Process cartridge | Shintaro Kawaguchi, Masatake Tanaka, Ryo Sugiyama | 2025-05-20 |
| 12235606 | Process cartridge | Masatake Tanaka, Tomoya Uesugi, Shintaro Kawaguchi | 2025-02-25 |
| 12124212 | Toner | Shintaro Kawaguchi, Masatake Tanaka, Tatsuya Saeki | 2024-10-22 |
| 11829105 | Image forming method and image forming apparatus | Ai Suzuki, Kazuhiro Funatani, Kensuke Umeda, Shinsuke Kobayashi, Masatake Tanaka | 2023-11-28 |
| 11249408 | Toner | Shohei Tsuda, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura | 2022-02-15 |
| 11169460 | Toner | Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura | 2021-11-09 |
| 11022933 | Process cartridge, image forming apparatus and cleaning apparatus | Kazunori Hashimoto, Katsuhiro Kojima, Toshiaki Takeuchi, Yasukazu Ikami, Kosuke Ikada +8 more | 2021-06-01 |
| 11003105 | Toner and toner manufacturing method | Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura | 2021-05-11 |
| 11003104 | Toner | Taiji Katsura, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga, Masatake Tanaka | 2021-05-11 |
| 10976679 | Toner | Masatake Tanaka, Taiji Katsura, Shohei Kototani, Kentaro Yamawaki, Tsuneyoshi Tominaga | 2021-04-13 |
| 10942465 | Toner | Shohei Kototani, Kentaro Yamawaki, Koji Abe, Tomonori Matsunaga | 2021-03-09 |
| 10942466 | Toner with an external additive of an organosilicon polymer particle having a hydroxyl group | Tsuneyoshi Tominaga, Masatake Tanaka, Taiji Katsura, Shohei Kototani, Kentaro Yamawaki | 2021-03-09 |
| 10809639 | Toner | Kentaro Yamawaki, Satoshi Otsuji, Hidekazu Fumita | 2020-10-20 |
| 10747133 | Image-forming apparatus | Yasutaka Yagi, Yuhei Terui, Noriyoshi Umeda, Tomonori Matsunaga, Shohei Kototani | 2020-08-18 |
| 10678155 | Toner comprising a surface layer of an organosilicon polymer protrusion | Yuhei Terui, Noriyoshi Umeda, Tomonori Matsunaga, Shohei Kototani | 2020-06-09 |
| 7286386 | Semiconductor device | Takashi Miwa, Yasumi Tsutsumi, Masahiro Ichitani, Takanori Hashizume, Naozumi Morino +3 more | 2007-10-23 |
| 7061785 | Stacked large-scale integrated circuit (LSI) semiconductor device with miniaturization and thinning of package | Takashi Miwa, Yasumi Tsutsumi, Masahiro Ichitani, Takanori Hashizume, Naozumi Morino +3 more | 2006-06-13 |
| 6493526 | Restoration method for a charging roller, a charging roller restored by the method and a process cartridge installed in the restored charging roller | — | 2002-12-10 |
| 6374071 | Charging unit, a manufacturing method thereof, a charging device using the charging unit, and a transfer device using the same | — | 2002-04-16 |
| 6323977 | Optical transmitting and receiving apparatus | Toshiaki Shou, Fumio Sato, Yoshiaki Yunoki, Motoyasu Nagashima, Kazumasa Taninaka | 2001-11-27 |
| 6320013 | Process for producing modified phenolic resin | Mitsunori Takeda | 2001-11-20 |
| 6181452 | Optical transmitting and receiving apparatus | Toshiaki Shou, Fumio Sato, Yoshiaki Yunoki, Motoyasu Nagashima, Kazumasa Taninaka | 2001-01-30 |
| 5840548 | Process for producing microbial lipids from hydrocarbons | Kimihiko Ogihara, Kazunori Ishigami, Kouki Sakashita, Yoshihiro Takayama | 1998-11-24 |
| 5818494 | Color thermal printer | — | 1998-10-06 |