Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4905021 | Optical printer head with a light emitting diode array | Hisao Iizuka, Shigetoshi Hiratsuka, Kiyohiko Tanno, Norihiro Ashizuka | 1990-02-27 |
| 4829321 | Optical printer head with a light emitting diode array | Hisao Iizuka, Shigetoshi Hiratsuka, Kiyohiko Tanno, Norihiro Ashizuka | 1989-05-09 |