Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702510 | Aqueous ink of pigment type | Hideki Yanagi, Kouichi Sakai, Masayoshi Nawa | 1997-12-30 |
| 5618647 | Magnetic toner and image forming method | Tsutomu Kukimoto, Yasuhide Goseki, Motoo Urawa, Masayoshi Shimamura, Keiji Okano +2 more | 1997-04-08 |