Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12424682 | Metal-air cell | Shunsuke Sata, Hirotaka Mizuhata, TOMO KITAGAWA | 2025-09-23 |
| 12034185 | Metal air battery module | Hirotaka Mizuhata, TOMO KITAGAWA, Akihito Yoshida | 2024-07-09 |
| 11522173 | Battery casing, metal-air battery, and method for producing metal-air battery | TOMO KITAGAWA, Shinobu Takenaka, Hirotaka Mizuhata, Masaki Kaga | 2022-12-06 |
| 11063310 | Battery case and metal-air battery having same | Masaki Kaga | 2021-07-13 |
| 8913924 | Electrophotographic image forming apparatus with electroconductive developer regulating section | — | 2014-12-16 |
| 8326195 | Transfer device and image forming apparatus | Toshimasa Hamada | 2012-12-04 |
| 8032062 | Developing unit and image forming apparatus with magnet bearing members | — | 2011-10-04 |
| 7904009 | Development device and image forming apparatus | Nobuhiro Maezawa, Tomohiro Maeda | 2011-03-08 |
| 7860435 | Developing device | — | 2010-12-28 |
| 7787808 | Developing device and image forming apparatus | — | 2010-08-31 |
| 7715764 | Developing device with pulsation developer flow and image forming apparatus | — | 2010-05-11 |
| D409652 | Toner cartridge | — | 1999-05-11 |
| 5310423 | Developing unit having capability of efficiently exchanging developing powder | Masato Asanuma | 1994-05-10 |
| 5307123 | Developing unit having capability of preventing developing powder from being jammed around exhaust outlet | — | 1994-04-26 |
| 5250749 | Developing unit provided with mechanism for exhausting developing powder from developing unit | — | 1993-10-05 |
| 5237373 | Image forming apparatus provided with automatic toner exhausting mechanism | Yasunobu Ohkawa | 1993-08-17 |
| 5235391 | Image forming apparatus provided with automatic discharging mechanism | — | 1993-08-10 |
| 5166731 | Developing unit having a rotation shaft and sealing member | Yoshiki Ichikawa | 1992-11-24 |
| 4982691 | Developing device for electrophotographic apparatus having magnet rollers | Masato Asanuma, Masatoshi Kaneshige | 1991-01-08 |
| 4974023 | Developing device for copier | Kazuhiro Satou, Takashi Miyaji | 1990-11-27 |
| 4955316 | Developing device | Masato Asanuma, Masatoshi Kaneshige | 1990-09-11 |
| 4937625 | Developing device for copier | Keiji Kato, Yoshikazu Nishikawa, Akio Shiomi | 1990-06-26 |