Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667481 | Method of and apparatus for emitting light in ice | Koji Watanabe, Mitsuo Watanabe, Naoki Toyoda, Hideo Toyoda, Michiaki Hiramoto | 1987-05-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4667481 | Method of and apparatus for emitting light in ice | Koji Watanabe, Mitsuo Watanabe, Naoki Toyoda, Hideo Toyoda, Michiaki Hiramoto | 1987-05-26 |