Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11793081 | Vibration power generation element | — | 2023-10-17 |
| 11576564 | Objective optical system for endoscope | — | 2023-02-14 |
| 9178247 | Lithium composite metal oxide and nonaqueous electrolyte secondary battery | Yuichiro Imanari, Yoshiaki Honda, Hiroshi Inukai | 2015-11-03 |
| 9116476 | Fixing device and image forming apparatus | Yoshiharu Takahashi, Chikara Hiraoka, Tamotsu Ikeda, Kohta Sakaya | 2015-08-25 |
| 8948639 | Fixing device with mechanism capable of detecting pressure exerted between opposed components and image forming apparatus incorporating same | Tamotsu Ikeda, Kaoru Tada | 2015-02-03 |
| 8591860 | Method for manufacturing a lithium complex metal oxide | Ryuji Matsushita, Satoshi Shimano | 2013-11-26 |
| 8501350 | Lithium manganese composite oxide | Ryoji Kanno, Makoto Yoshioka | 2013-08-06 |
| 8440353 | Lithium mixed metal oxide | Yuichiro Imanari, Hiroshi Hamamatsu | 2013-05-14 |
| 8442414 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Kenzo Tatsumi, Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshiyuki Shimizu | 2013-05-14 |
| 8320792 | Cleaning device, process cartridge, and image forming apparatus | Hirobumi Ooyoshi, Osamu Saito | 2012-11-27 |
| 8275285 | Process cartridge and image forming apparatus | Koji Kato, Hirobumi Ooyoshi, Tomofumi Yoshida, Kenzo Tatsumi, Yoshiyuki Shimizu +1 more | 2012-09-25 |
| 8260186 | Toner cartridge with refillable fresh and residual toner chambers, process cartridge, and method of making toner cartridge reusable | Tomohiro Kubota, Tomofumi Yoshida, Kenzo Tatsumi, Hirobumi Ooyoshi, Yoshiyuki Shimizu +2 more | 2012-09-04 |
| 8208832 | Toner-collecting device and image forming apparatus | Tomofumi Yoshida, Hirobumi Ooyoshi, Kenzo Tatsumi, Yoshiyuki Shimizu, Tomohiro Kubota +1 more | 2012-06-26 |
| 8160476 | Latent image carrier having pairs of first and second positioning protrusions and image forming apparatus | Yoshiyuki Shimizu, Kenzo Tatsumi, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2012-04-17 |
| 8135313 | Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw | Tomofumi Yoshida, Hirobumi Ooyoshi, Kenzo Tatsumi, Tomohiro Kubota, Yoshiyuki Shimizu +2 more | 2012-03-13 |
| 8135329 | Toner conveyer device, process cartridge, and image forming apparatus | Yoshiyuki Shimizu, Tomofumi Yoshida, Hirobumi Ooyoshi, Koji Kato, Kenzo Tatsumi +1 more | 2012-03-13 |
| 8103195 | Toner agitating unit, toner hopper, process cartridge, and image forming apparatus | Tomofumi Yoshida, Hirobumi Ooyoshi, Kenzo Tatsumi, Yoshiyuki Shimizu, Tomohiro Kubota +1 more | 2012-01-24 |
| 8095035 | Developing device, process unit, and image forming apparatus, with supporting members, grooves, and supported developing roller | Hirobumi Ooyoshi, Osamu Saito, Kenzo Tatsumi, Tomohiro Kubota, Yoshiyuki Shimizu +1 more | 2012-01-10 |
| 8081897 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Kenzo Tatsumi, Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshiyuki Shimizu | 2011-12-20 |
| 8029928 | Positive electrode active material powder | Kazuyuki Tanino, Reiko Sasaki, Takashi Yoshida | 2011-10-04 |
| 8019254 | Toner conveying device, process cartridge, and image forming apparatus | Kenzo Tatsumi, Koji Kato, Hirobumi Ooyoshi, Tomofumi Yoshida, Yoshiyuki Shimizu +1 more | 2011-09-13 |
| 7979013 | Developing device of image forming apparatus | Tomofumi Yoshida, Hirobumi Ooyoshi, Kenzo Tatsumi, Yoshiyuki Shimizu, Tomohiro Kubota | 2011-07-12 |
| 7965958 | Developing device, process cartridge and image forming apparatus | Kenzo Tatsumi, Yoshiyuki Shimizu, Tomohiro Kubota, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7965957 | Developing device and image forming apparatus that uses this developing device | Tomohiro Kubota, Kenzo Tatsumi, Yoshiyuki Shimizu, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7945203 | Waste-toner collecting device, process cartridge, and image forming apparatus | Yoshiyuki Shimizu, Kenzo Tatsumi, Hirobumi Ooyoshi, Tomofumi Yoshida, Tomohiro Kubota +2 more | 2011-05-17 |