Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7309794 | Method of storing episulfide compound | Akikazu Amagai, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Masanori Shimuta +1 more | 2007-12-18 |
| 6534589 | Process for producing a resin having a large refractive index | Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Masaaki Takasuka | 2003-03-18 |
| 6531532 | Composition for optical materials | Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi | 2003-03-11 |
| 6528005 | Process for producing a lens by polymerizing bis(&bgr;-epithiopropyl) ether | Akikazu Amagai, Motoharu Takeuchi | 2003-03-04 |
| 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 |
| 6197226 | Process for tinting a resin having a large refractivity index and optical material tinted by the process | Akikazu Amagai, Motoharu Takeuchi, Katsuyuki Mizuno, Hiroshi Horikoshi | 2001-03-06 |