Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D904511 | Toner cartridge | Yusuke Hashimoto, Naoki Nonoyama | 2020-12-08 |
| D894268 | Toner cartridge | Yusuke Hashimoto, Naoki Nonoyama | 2020-08-25 |
| 10571826 | Developer supplying device and image forming apparatus | Yasuaki Tomoda, Youichi Itagaki | 2020-02-25 |
| 10114325 | Sheet material feeding apparatus and image forming apparatus | Yoshitaka Kuroda, Yasuhiro Suzuki | 2018-10-30 |
| 8576457 | Image reading apparatus provided with a white reference member for shading correction | Akiyoshi Johdai | 2013-11-05 |
| 8340555 | Toner supply container and image forming apparatus | Shinya Naoi, Yasuaki Tomoda | 2012-12-25 |
| 7619473 | Fully-differential amplifier | Masayuki Katakura | 2009-11-17 |
| 7487655 | Process for producing tubular ring with beads and die for use therein | Yoshihaya Imamura, Noritaka Eguchi, Takeo Sakurai | 2009-02-10 |
| 7095806 | Receiver | Hiroshi Tsurumi, Hiroshi Yoshida, Shoji Otaka | 2006-08-22 |
| 6817474 | Color sorting apparatus for granular objects with function to sorting out foreign magnetic metal matters | Norimasa Ikeda | 2004-11-16 |
| 6714604 | Receiver | Hiroshi Tsurumi, Hiroshi Yoshida, Shoji Otaka | 2004-03-30 |
| 6498929 | Receiver having DC offset decreasing function and communication system using the same | Hiroshi Tsurumi, Hiroshi Yoshida, Tetsuro Itakura, Takafumi Yamaji, Akira Yasuda +3 more | 2002-12-24 |
| 6477360 | Frequency converter | Osamu Watanabe, Takafumi Yamaji, Shoji Otaka | 2002-11-05 |
| 6381449 | Frequency converter | Takafumi Yamaji, Tetsuro Itakura | 2002-04-30 |
| 6346804 | Impedance conversion circuit | Takashi Ueno, Tetsuro Itakura | 2002-02-12 |
| RE36861 | Linear differential amplifier | Mikio Koyama | 2000-09-12 |
| 6057723 | Phase shifter | Takafumi Yamaji | 2000-05-02 |
| 5994656 | Color sorting machine for cereal grain or the like having dust collecting device | Satoru Satake, Takafumi Ito | 1999-11-30 |
| 5995819 | Frequency converter and radio receiver using same | Takafumi Yamaji, Osamu Watanabe, Tetsuro Itakura, Shoji Otaka, Ryuichi Fujimoto | 1999-11-30 |
| 5990737 | Balanced amplifier using single-ended output operational amplifiers | Zdzislaw Czarnul, Tetsuro Itakura | 1999-11-23 |
| 5943637 | Noise analyzing apparatus for analyzing noise of autonomous system by simulation | Makiko Okumura | 1999-08-24 |
| 5890058 | Electronic circuit and filter device using same | Takashi Ueno, Tetsuro Itakura | 1999-03-30 |
| 5809408 | Variable gain circuit and radio apparatus using the same | Ryuichi Fujimoto | 1998-09-15 |
| 5756942 | Vibration-damping section with sound absorbing material | Toshimitsu Tanaka, Nobuteru Hayashi, Syunichi Umemoto, Kenji Iwai, Akio Sugimoto | 1998-05-26 |
| 5736840 | Phase shifter and communication system using the phase shifter | Shoji Otaka | 1998-04-07 |