Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828359 | Alkyl methacrylate homo - or copolymer optical waveguide for illumination and production of the same | Norifumi Matsumiya | 1989-05-09 |
| 4795656 | Cluster ion plating method for producing electrically conductive carbon film | Akira Mizoguchi, Jun Shioya, Yoichi Yamaguchi, Hironaga Matsubara | 1989-01-03 |