Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6521166 | Method of polarization-treating piezoelectric body | Hiroshi Tomohiro | 2003-02-18 |
| 6502444 | Method of forming a cylindrical portion of a sheet metal member having a center hole | Toshiaki Kanemitsu, Kunihiro Harada | 2003-01-07 |