Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4321046 | Electronic learning aid operable in an examination mode | Yoshiro Kataoka, Takashi Sakaue | 1982-03-23 |
KO
Koiti Oda
Overall (All Time): #4,066,979 of 4,157,543Top 100%
1
Patents All Time