Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772843 | Time measuring apparatus | Yuji Yamaguchi, Hideto Iwaoka | 1988-09-20 |
| 4484298 | Method and device for generation of quadratic curve signal | Tadanari Inoue, Yuji Yamaguchi | 1984-11-20 |