Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5966568 | Process cartridge, assembling method of process cartridge, assembling method of toner container and electrophotographic image forming apparatus | Atsushi Numagami, Kazushi Watanabe | 1999-10-12 |
| 5937239 | Process cartridge and electrophotographic image forming apparatus | Kazushi Watanabe, Seiji Uchiyama, Yoshihiro Ito, Atsushi Numagami | 1999-08-10 |
| 5937242 | Process cartridge and electrophotographic image forming apparatus | Kazushi Watanabe, Atsushi Numagami | 1999-08-10 |
| 5768669 | Developing device having magnet roll fixed by welding and method of assembling the same | — | 1998-06-16 |
| 5765286 | Reconditioning method for developing roller | Minoru Sato, Satoshi Kurihara, Akira Suzuki | 1998-06-16 |
| 4862030 | Piezo-electric device | Yukio Sato, Shunzo Shimai | 1989-08-29 |
| 4769570 | Piezo-electric device | Yukio Sato, Shunzo Shimai | 1988-09-06 |
| 4689516 | Position adjustment device with a piezoelectric element as a lock mechanism | Chiaki Tanuma | 1987-08-25 |
| 4634884 | Swing-driven solid-state image sensor | Yoshiaki Hayashimoto, Chiaki Tanuma, Nozomu Harada | 1987-01-06 |
| 4554586 | Solid state image sensing device | Chiaki Tanuma, Yoshiyuki Suda | 1985-11-19 |
| 4510412 | Piezoelectric displacing device | Yoshiyuki Suda, Chiaki Tanuma | 1985-04-09 |
| 4449919 | Gas combustion apparatus capable of detecting environmental oxygen deficiency | Osamu Takikawa, Masaki Katsura, Chiaki Tanuma | 1984-05-22 |
| 4321155 | Piezoelectric oxide material | Youhachi Yamashita, Tadashi Ido, Seiichi Yoshida | 1982-03-23 |