Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670567 | Rotary switch mechanism for operation panel | Kazuhiko Hirota, Hiroshi Misuda | 2003-12-30 |
| 6447973 | Liquid developer for developing electrostatic image and image forming method | Tsuyoshi Asami, Kazuo Tsubuko, Aiko Ishikawa, Takeo Kudoh, Kazuhiko Umemura | 2002-09-10 |
| 5851717 | Developer for use in electrophotography, and image formation method using the same | Kazuo Tsubuko, Akihiko Gotoh, Tsuyoshi Asami, Kazuyo Mizuno | 1998-12-22 |