Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316513 | Electrothermal color-varying device and toy utilizing the same | Tanehiro Nakagawa, Yoshiaki Ono, Tsutomu Tomatsu, Takeo Yamaguchi, Toshiaki Tanaka | 1994-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316513 | Electrothermal color-varying device and toy utilizing the same | Tanehiro Nakagawa, Yoshiaki Ono, Tsutomu Tomatsu, Takeo Yamaguchi, Toshiaki Tanaka | 1994-05-31 |