Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7731874 | Method of molding optical component | Masanori Utsugi | 2010-06-08 |
| 7611655 | Molding metal mold and method for producing a molded item | Seiichi Watanabe, Keiji Shigesada, Kazutoshi Misonoo | 2009-11-03 |
| 7591642 | Mold for optical component and method for molding optical component | Masanori Utsugi | 2009-09-22 |
| 6991756 | Heat exchange apparatus for a metal mold | Seiichi Watanabe | 2006-01-31 |