Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755853 | Cleaning device | Shigeru Shimizu, Masaaki Dohi | 1988-07-05 |
| 4660962 | Cleaning device | Nobuaki Maekawa, Shigeru Shimizu, Masaaki Dohi | 1987-04-28 |
YK
Yoji Kuriyama
Casio Electronics Manufacturing Co.: 2 patents #29 of 107Top 30%
Overall (All Time): #2,337,625 of 4,157,543Top 60%
2
Patents All Time