Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5249076 | Optical filter structure | Shigetoshi Fujiwara, Yoshio Kishima | 1993-09-28 |
| 4822684 | Sandwich glass | Masahiro Hotta | 1989-04-18 |
| 4769415 | Resin composition | Masahiro Hotta | 1988-09-06 |