Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7119717 | Encoder output divider and R/D converter | — | 2006-10-10 |
| 7015840 | Resolver/digital converter | — | 2006-03-21 |
| 6894629 | Resolver/digital converter | — | 2005-05-17 |
| 6556456 | Device for shielding electronic circuit for aircraft | — | 2003-04-29 |
| 6323790 | R/D converter | — | 2001-11-27 |
| 6320524 | R/D converter | — | 2001-11-20 |
| 6069458 | Power supply circuit device for a high intensity discharge lamp that repetitively lights the lamp using a pulse-by-pulse mode current limiting function | Masashi Norizuki | 2000-05-30 |
| 5834907 | Cold cathode tube operating apparatus with piezoelectric transformer | — | 1998-11-10 |
| 5818709 | Inverter apparatus | — | 1998-10-06 |
| 5798616 | Fluorescent lamp circuit employing both a step-up chopper and an inverter | Masashi Norizuki | 1998-08-25 |
| 5739679 | Cold cathode tube lighting device using piezoelectric transformer | Shingo Okada | 1998-04-14 |
| 5666279 | Voltage resonance inverter circuit for dimable cold cathode tubes | Shingo Okada | 1997-09-09 |
| 5640313 | Inverter unit | Masashi Norizuki, Atsuyoshi Tamagawa | 1997-06-17 |
| 4241313 | Audio power amplifier | — | 1980-12-23 |