Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6278227 | Piezoelectric transformer | Masafumi KATSUNO | 2001-08-21 |
| 6051915 | Piezoelectric transformer | Masafumi KATSUNO | 2000-04-18 |
| 5998909 | Piezoelectric transformer | Katsunori Kumasaka, Masafumi KATSUNO, Koichi Okamoto | 1999-12-07 |
| 5847490 | Piezoelectric transformer wrapped by wrapping member of soft insulating sheet material | Katsunori Kumasaka, Masafumi KATSUNO, Koichi Okamoto | 1998-12-08 |
| 5777425 | Voltage converter for use with a piezoelectric transformer | Yoshihiro Ino, Tetsuo Yoshida, Naoki Wako, Katsunori Kumasaka, Hutoshi Shiotani | 1998-07-07 |
| 5400488 | Method of manufacturing a piezoelectric vibrator capable of reliably preventing dielectric breakdown | Tomeji Ohno, Tetsuo Yoshida | 1995-03-28 |
| 5315205 | Piezoelectric vibrator capable of reliably preventing dielectric breakdown and a method of manufacturing the same | Tomeji Ohno, Tetsuo Yoshida | 1994-05-24 |