Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6552211 | Zirconium compound and electrophotographic toner employing it | Masataka Sawano, Taito Muraoka, Katuya Yamaguti, Hiroyoshi Yamaga | 2003-04-22 |
| 6410198 | Zirconium compound and electrophotographic toner employing it | Masataka Sawano, Taito Muraoka, Katuya Yamaguti, Hiroyoshi Yamaga | 2002-06-25 |
| 6110634 | Electrophotographic toner | Masataka Sawano, Taito Muraoka, Yutaka Saitoh, Hiroyoshi Yamaga | 2000-08-29 |
| 5928826 | Electrostatic image developing toner | Yuuji Matsuura, Isao Niimura, Mikiko Kanasugi | 1999-07-27 |