Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11370671 | Zinc oxide varistor | Yoji Gomi, Kenichi Iguchi, Etsurou Udagawa, Yuko ECHIZENYA, Yoshimi Nakata | 2022-06-28 |
| 4964638 | Control apparatus for game machines | — | 1990-10-23 |