Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444141 | Piezoelectric ceramic and manufacturing method therefor | Koichi Hayashi, Akira Ando | 2002-09-03 |
| 6379580 | Piezoelectric ceramic material and monolithic piezoelectric transducer employing the ceramic material | Koichi Hayashi, Akira Ando | 2002-04-30 |