Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6075325 | Inverter and method for driving a plurality of cold cathode tubes in parallel | Makoto Kouno, Shuuji Yamaguchi | 2000-06-13 |
| 6028388 | Piezoelectric transformer driver | — | 2000-02-22 |
| 6020719 | Secondary battery unit using electric double layer condenser | Eitaro Nishigaki | 2000-02-01 |
| 5923546 | Control circuit and method for driving and controlling parasitic vibration of a piezoelectric transformer-inverter | Shingo Kawashima | 1999-07-13 |
| 5886477 | Driver of cold-cathode fluorescent lamp | Nobuaki Honbo | 1999-03-23 |
| 5866969 | Actuating circuit of piezoelectric transformer and actuating method thereof | Nobuaki Honbo | 1999-02-02 |
| 5859489 | Piezoelectric transformer driving circuit | — | 1999-01-12 |
| 5731652 | Power source unit employing piezoelectric transformer frequency-controlled and voltage-controlled to operate at a maximum efficiency | — | 1998-03-24 |
| 5705877 | Piezoelectric transformer driving circuit | — | 1998-01-06 |
| 5675484 | Wide input voltage range power supply with auto-transformers and piezoelectric transformer | — | 1997-10-07 |
| 4845661 | Display information processing apparatus | — | 1989-07-04 |
| 4630039 | Display processing apparatus | — | 1986-12-16 |