Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9208960 | Electrode for vacuum circuit breaker, and vacuum interrupter using the electrode | Kunihiko Tomiyasu, Takashi Sato, Masato Kobayashi | 2015-12-08 |
| 6118961 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 2000-09-12 |
| 6097911 | Process cartridge having shiftable cover with specific spacing between cover and cartridge | Kazushi Watanabe, Tadayuki Tsuda, Teruo Komatsu, Ikuo Ikemori | 2000-08-01 |
| 6075956 | Process cartridge having shiftable cover and guide member for directing airflow | Kazushi Watanabe, Tadayuki Tsuda, Teruo Komatsu, Ikuo Ikemori | 2000-06-13 |
| 5987278 | Process cartridge and image forming apparatus usable therewith | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 1999-11-16 |
| 5907749 | Process cartridge and image forming apparatus usable therewith | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 1999-05-25 |
| 5878304 | Process cartridge having shiftable cover with inner protrusion | Kazushi Watanabe, Tadayuki Tsuda, Teruo Komatsu, Ikuo Ikemori | 1999-03-02 |
| 5828928 | Process cartridge mountable in an image forming system and a method for assembling a cleaning device | Yoshikazu Sasago, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +10 more | 1998-10-27 |
| 5682579 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 1997-10-28 |
| 5623328 | Process cartridge and image forming system on which process cartridge is mountable | Tadayuki Tsuda, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +9 more | 1997-04-22 |
| 5608509 | Process cartridge with blade member having a flat-surface side and an angled-surface side | Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +4 more | 1997-03-04 |
| 5470635 | Blade member having a flat-surface side and an angled-surface side | Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +4 more | 1995-11-28 |
| D355208 | Developing device for copying machine | Masaaki Ishibashi, Tadayuki Tsuda | 1995-02-07 |
| 5383011 | Cleaning device, process cartridge incorporating the cleaning device, and image forming apparatus using the cleaning device | Atsushi Numagami, Takeo Shoji | 1995-01-17 |
| 5294960 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 1994-03-15 |
| 5208634 | Process cartridge detachably mountable to image forming apparatus featuring an injectable sealing member | Isao Ikemoto, Tadayuki Tsuda, Kazushi Watanabe, Kazuhiko Ishiwata, Kazuo Shishido +4 more | 1993-05-04 |
| 5134960 | Toner seal for developing unit in process cartridge | — | 1992-08-04 |