Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5474871 | Process for making magnetic toners | Seiichi Takagi, Toyofumi Inoue | 1995-12-12 |
| 5456990 | Magnetic toner | Seiichi Takagi, Toshiyuki Yano, Hiroe Okuyama, Sueko Sakai, Emi Takahashi | 1995-10-10 |
| 4255371 | Process for producing olefinic resin foams | Nobuyoshi Shimoyashiki, Fusao Imai | 1981-03-10 |