Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472495 | Composition for producing resin | Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi | 2002-10-29 |
| 6365223 | Process for tinting a resin for optical materials | Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Masaaki Takasuka | 2002-04-02 |