Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7711331 | Transmission power amplifier apparatus for combining power-amplified constant amplitude signals each having controlled constant amplitude value and phase | — | 2010-05-04 |
| 7439809 | Radio frequency power amplifier | Motoyoshi Iwata, Hiroyuki Yamauchi | 2008-10-21 |
| 5594358 | Radio frequency probe and probe card including a signal needle and grounding needle coupled to a microstrip transmission line | Osamu Ishikawa | 1997-01-14 |
| 5592122 | Radio-frequency power amplifier with input impedance matching circuit based on harmonic wave | Maeda Masahiro, Osamu Ishikawa | 1997-01-07 |
| 5279162 | Semiconductor sensor | Katsuhiko Takebe, Mizuho Doi, Satoshi Hiyama, Masanobu Urabe | 1994-01-18 |
| 5115292 | Semiconductor sensor | Katsuhiko Takebe, Mizuho Doi, Satoshi Hiyama, Masanobu Urabe | 1992-05-19 |