Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898801 | Magnetic carrier of developer for electrophotographic copying machines composed of ferrite and a selected metal oxide | Hidekiyo Tachibana, Akihiko Noda, Kazuo Terao, Yukio Seki, Hiroshi Endo +1 more | 1990-02-06 |