Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013956 | Lining material and ultrasonic wave driven motor using lining material | Seiji Kurozumi, Shigenori Uda, Masatake Hirai, Takeo Kimura, Nobuyuki Yamamoto | 1991-05-07 |