Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960828 | Scratch resistant top coating composition | Tetsuo Higuchi, Sachio Yamaguchi, Shinji Sugiura, Shigeru Nakamura | 1990-10-02 |
| 4871591 | Finish coating method | Tadashi Watanabe, Yutaka Sugiyama, Kazuhiko Ohira, Nobushige Numa, Sachio Yamaguchi +1 more | 1989-10-03 |
| 4812337 | Metallic coating method | Nobushige Numa, Tadashi Watanabe, Yutaka Sugiyama, Kazuhiko Ohira, Sachio Yamaguchi | 1989-03-14 |