Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106013 | Motor drive apparatus driving 3-phase brushless motor without using hall sensor | Hiroyuki Tamagawa | 2006-09-12 |
| 7076192 | Powder conveying device and image forming apparatus using the same | Kiyonori Tsuda, Hiroshi Hosokawa, Yuji Arai, Ryuta Takeichi, Masanori Kawasumi +1 more | 2006-07-11 |
| 7024133 | Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself | Hiroyuki Nagashima, Atsushi Sampe, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa +7 more | 2006-04-04 |
| 7003255 | Image forming apparatus and process cartridge | Masanori Kawasumi, Kazuhiko Umemura, Hiroshi Hosokawa, Takeichi Ryuta, Kiyonori Tsuda +1 more | 2006-02-21 |
| 6806663 | Motor driving circuit | Satoshi Kusaka, Toshiya Suzuki, Hiroyuki Tamagawa, Masaharu Hoashi | 2004-10-19 |
| 6724166 | Apparatus for reducing motor driving noise and method for generating motor driving noise reducing signal | Hiroyuki Tamagawa, Masaharu Hoashi | 2004-04-20 |
| 5240964 | Process for producing urethane foam with high density skin | Hirokazu Ohmura, Kimio YOSHIMURA | 1993-08-31 |
| 5141684 | Method of preparing urethane foam articles | Kimio YOSHIMURA | 1992-08-25 |
| 5139713 | Method of preparing urethane foam articles | Kimio YOSHIMURA | 1992-08-18 |