Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490090 | Coloring structure for producing color | Kinya Kumazawa, Hiroshi Tabata, Masahiko Yamanaka | 2002-12-03 |
| 6350509 | Coating structure | Masahiko Yamanaka, Hiroshi Tabata, Kinya Kumazawa, Hidekazu Takahashi | 2002-02-26 |