Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365733 | Exhaust gas purification system for an internal combustion engine | Shinichi Takeshima, Tokuta Inoue | 1994-11-22 |
| 5331656 | Very short wavelength semiconductor laser | — | 1994-07-19 |
| 5316513 | Electrothermal color-varying device and toy utilizing the same | Tanehiro Nakagawa, Yoshiaki Ono, Tsutomu Tomatsu, Takeo Yamaguchi, Kyoji Aoyama | 1994-05-31 |