Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309743 | Door unlocking device | Hisashi Aoki, Yoshiyuki Mizuno | 1994-05-10 |
| 5307658 | Key cylinder device | Hisashi Aoki, Yoshiyuki Mizuno | 1994-05-03 |
SK
Sadao Kokubu
Overall (1994): #20,546 of 165,921Top 15%
2
Patents 1994