Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9304445 | Developing roller, developing device, image forming apparatus, and manufacturing method of developing roller | Masashi Fujishima, Tamotsu Shimizu, Shizuka Okada, Sakae Saito, Yasuhiro Oishi | 2016-04-05 |
| 9274453 | Developing roller, developing device, and image forming apparatus including developing device | Yasuhiro Oishi, Akihiro Watanabe, Tamotsu Shimizu, Yoshinobu Yoneima, Shizuka Okada +1 more | 2016-03-01 |