Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252826 | Time control device | Tetsuya Kaizu | 2001-06-26 |
MK
Michio Kai
Overall (All Time): #3,586,344 of 4,157,543Top 90%
1
Patents All Time