Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698363 | Image forming method | Ai Katsuda, Hiroshi Watanabe, Toshihisa Takeyama, Kunihiro Koshizuka | 1997-12-16 |
| 5693447 | Image forming material, method of preparing the same and image forming method employing the same | Toshihisa Takeyama, Ai Katsuda, Masataka Takimoto, Yoshitaka Goto | 1997-12-02 |
| 5691103 | Image forming material, method of preparing the same and image forming method employing the same | Toshihisa Takeyama, Ai Katsuda, Kunihiro Koshizuka, Masataka Takimoto, Yoshitaka Goto | 1997-11-25 |