Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8659806 | Lighting device and document scanning device having the same | Yoshinori Ejima, Kouhei SUYAMA, Takafumi Sanada | 2014-02-25 |
| 8564854 | Light guide body, and lighting apparatus and document scanning apparatus having the same | Kohei SUYAMA, Takafumi Sanada | 2013-10-22 |
| 8537429 | Document scanning device having light guide that illuminates document and reference plate | Takafumi Sanada, Kohei SUYAMA | 2013-09-17 |
| 8422094 | Illumination device | Kouhei SUYAMA, Junichi Suematsu | 2013-04-16 |
| 7684725 | Exposure device and image forming apparatus | Kouhei SUYAMA, Kazuo Nishimura | 2010-03-23 |