Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406770 | Optical disk and method of manufacturing optical disk | Shoei Ebisawa, Daisuke Ito, Kiyoshi Oshima, Norio Tsunematsu | 2002-06-18 |
| D257553 | Portable electric-plating gun | — | 1980-11-25 |