Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553784 | Cleaning material for molding metal die, and cleaning method | Hiroaki Nomura | 2009-06-30 |
| 5988821 | Lens type functional retroreflective sheeting and method of producing same | Osamu Tanaka, Kunihiro Takao, Katsura Ochi | 1999-11-23 |
| 5759671 | Ultraviolet luminescent retroreflective sheeting | Osamu Tanaka, Hidenori Fushimi | 1998-06-02 |