Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472495 | Composition for producing resin | Yuichi Yoshimura, Atsuki Niimi, Hiroshi Horikoshi | 2002-10-29 |
| 6444146 | Process for production of optical material | Yuichi Yoshimura | 2002-09-03 |
| 6365223 | Process for tinting a resin for optical materials | Yuichi Yoshimura, Atsuki Niimi, Hiroshi Horikoshi, Masaaki Takasuka | 2002-04-02 |