Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8007974 | Toner, image forming apparatus using the same, image forming method using the same, and process cartridge | Shinya Nakayama, Akihiro Kotsugai, Yasuaki Iwamoto | 2011-08-30 |
| 7901861 | Electrophotographic image forming method | Minoru Masuda, Yasuaki Iwamoto, Hyo Shu | 2011-03-08 |
| 7892718 | Image forming apparatus, image forming method and process cartridge | Yasuaki Iwamoto, Yohichiroh Watanabe | 2011-02-22 |
| 7873304 | Image forming apparatus, image forming method, and process cartridge | Yasuaki Iwamoto, Yohichiroh Watanabe | 2011-01-18 |
| 7862973 | Toner and developer, and image forming apparatus, image forming method and process cartridge | Shinya Nakayama, Akihiro Kotsugai, Yasuaki Iwamoto, Yohichiroh Watanabe | 2011-01-04 |
| 7718340 | Image forming apparatus, image forming method, and process cartridge | Yasuaki Iwamoto, Yohichiroh Watanabe | 2010-05-18 |
| 7713672 | Image forming apparatus, image forming method and process cartridge | Yohichiroh Watanabe, Yasuaki Iwamoto | 2010-05-11 |