Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D306030 | Electric sewing machine motor | Tatsuya Sawato, Takashi Nakamura, Hiroshi Kumatani, Yoshinori Abe | 1990-02-13 |
YO
Youzo Ookawa
Overall (All Time): #3,896,061 of 4,157,543Top 95%
1
Patents All Time