Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6995636 | In-band-flat-group-delay type dielectric filter and linearized amplifier using the same | Takehiko Yamakawa, Toru Yamada, Toshio Ishizaki, Minoru Tachibana, Toshiaki Nakamura | 2006-02-07 |
| 6794959 | In-band-flat-group-delay type dielectric filter and linearized amplifier using the same | Takehiko Yamakawa, Toru Yamada, Toshio Ishizaki, Minoru Tachibana, Toshiaki Nakamura | 2004-09-21 |
| 6515559 | In-band-flat-group-delay type dielectric filter and linearized amplifier using the same | Takehiko Yamakawa, Toru Yamada, Toshio Ishizaki, Minoru Tachibana, Toshiaki Nakamura | 2003-02-04 |