Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6166596 | High efficiency power amplifying apparatus with phase compensation circuit | Tsuyoshi Sato | 2000-12-26 |
| 6140690 | Semiconductor device | Itsuzo Oka, Taizo Oohama | 2000-10-31 |
| 6091292 | High efficiency power amplifying apparatus | Tsuyoshi Sato | 2000-07-18 |
| 6060947 | Hybrid IC device with wide dynamic range | Taizo Ohhama | 2000-05-09 |
| 5818301 | Power amplifier arrangenment of a plural power supply switching type | Fumio Hori, Seiji Kumaki | 1998-10-06 |
| 5543998 | Temperature protected power transistor circuit | — | 1996-08-06 |
| 5453904 | Power control unit protection apparatus | Taizou Oohama, Masahiko Mizoguchi, Tsunenari Nishikawa | 1995-09-26 |
| 4424556 | Self-oscillating DC to DC converter | Mikio Maeda, Masahiro Kosaka | 1984-01-03 |