Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9780441 | Antenna and wireless communication device | Kunihiro Komaki, Masahiro Izawa, Yuji KAMINISHI, Tsuyoshi MUKAI | 2017-10-03 |
| 7825752 | Dielectric filter having a dielectric block with input/output electrodes of a bent shape at corner portions of the block | Takahiro Okada, Takayoshi Yui | 2010-11-02 |
| 7760050 | Dielectric filter having tapered input/output electrodes | Takahiro Okada, Takayoshi Yui | 2010-07-20 |
| 7482898 | Dielectric filter, dielectric duplexer, and communication apparatus | Hitoshi Tada, Takayoshi Yui, Hideyuki Kato | 2009-01-27 |
| 6970056 | Filter assembly and communication apparatus | Hirofumi Miyamoto | 2005-11-29 |
| 6963258 | Variable-frequency resonator circuit, variable-frequency filter, shared-antenna device, and communication device | Nobuyoshi Honda, Kyoji Matsunaga | 2005-11-08 |
| 6940364 | Dielectric filter, dielectric duplexer, and communication apparatus | Hitoshi Tada, Hideyuki Kato | 2005-09-06 |
| 6885261 | Dielectric filter, antenna sharing device, and communication device having a voltage controlled reactance element for tuning the center frequency | Hirofumi Miyamoto, Hajime Suemasa, Kikuo Tsunoda, Yasuo Yamada | 2005-04-26 |
| 6697605 | High-frequency circuit apparatus and communication apparatus | Toshihiro Yamamoto | 2004-02-24 |
| 6590475 | Filter, antenna duplexer, and communication apparatus incorporating the same | Yasuo Yamada, Kikuo Tsunoda, Hirofumi Miyamoto, Hajime Suemasa | 2003-07-08 |
| 6545565 | Filter, antenna sharing device, and communication device | — | 2003-04-08 |
| 6522220 | Frequency variable filter, antenna duplexer, and communication apparatus incorporating the same | Yasuo Yamada, Kikuo Tsunoda, Hirofumi Miyamoto, Hajime Suemasa | 2003-02-18 |
| 6483399 | Duplexer and communication apparatus with first and second filters, the second filter having plural switch selectable saw filters | — | 2002-11-19 |
| 6414566 | Frequency-characteristics variable filter, duplexer, and communication apparatus | — | 2002-07-02 |
| 6411176 | Voltage-controlled duplexer and communication apparatus | Kikuo Tsunoda | 2002-06-25 |
| 6369668 | Duplexer and communication apparatus including the same | Nobuyoshi Honda | 2002-04-09 |
| 6351195 | High frequency circuit device, antenna-sharing device, and communication apparatus having spaced apart ground electrodes | Nobuyoshi Honda, Hajime Suemasa | 2002-02-26 |
| 6308051 | Antenna duplexer | — | 2001-10-23 |
| 6307448 | Frequency-variable-type filter, antenna duplexer, and communication apparatus | Yasuo Yamada | 2001-10-23 |
| 6288620 | Antenna-duplexer and communication apparatus | Yasuo Yamada, Kikuo Tsunoda | 2001-09-11 |
| 6111482 | Dielectric variable-frequency filter having a variable capacitance connected to a resonator | — | 2000-08-29 |
| 5604470 | Duplexer having transmit and receive sections mounted on a single substrate | — | 1997-02-18 |