Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340375 | Electronic learning aid | Takashi Sakaue, Megumi Fukusaki, Yoshiro Kataoka | 1982-07-20 |
KH
Koichi Hatta
Overall (1982): #47,815 of 81,411Top 60%
1
Patents 1982