Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891561 | Neon tube lighting device | Yoshinori Mizuhata | 1990-01-02 |
| 4629946 | Neon sign control device | Hajime Okada, Teruyuki Yakuda, Isao Hori, Yoshinori Mizuhata | 1986-12-16 |