Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333756 | Optical unit and its manufacturing method and electrophotographic recording device | Yukihiro Matsushita, Takao Sugano | 2001-12-25 |
| 6236040 | Image forming apparatus | Kouichi Takemura, Yoshitaka Murakawa, Hiroyuki Matsuo, Takao Sugano, Kazuki Ogawa +1 more | 2001-05-22 |
| 6191804 | Image forming apparatus | Shunji Kitagawa, Takao Sugano, Hiroyuki Matsuo, Masayuki Iwasa, Mitsuaki Takeguchi +2 more | 2001-02-20 |
| 5864739 | Light source package incorporating thermal expansion compensating device and image forming apparatus using the same | Kouichi Takemura, Takao Sugano, Hiroyuki Matsuo, Yukihiro Matsushita | 1999-01-26 |