Issued Patents 2003
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608534 | Matching circuit chip, filter with matching circuit, duplexer and cellular phone | Hiroshi Kushitani, Toru Yamada, Naoki Yuda, Hideaki Nakakubo, Makoto Fujikawa | 2003-08-19 |
| 6608533 | Matching circuit chip, filter with matching circuit, duplexer and cellular phone | Hiroshi Kushitani, Toru Yamada, Naoki Yuda, Hideaki Nakakubo, Makoto Fujikawa | 2003-08-19 |
| 6603372 | Laminated notch filter and cellular phone using the same | Ikuo Awai, Hideyuki Miyake, Shoichi Kitazawa, Toru Yamada | 2003-08-05 |
| 6586786 | High frequency switch and mobile communication equipment | Shoichi Kitazawa, Masaharu Tanaka, Toru Yamada | 2003-07-01 |
| 6577205 | High-frequency filter device, filter device combined to a transmit-receive antenna, and wireless apparatus using the same | Toru Yamada | 2003-06-10 |
| 6570469 | Multilayer ceramic device including two ceramic layers with multilayer circuit patterns that can support semiconductor and saw chips | Toru Yamada, Kazuhide Uriu, Tsutomu Matsumura | 2003-05-27 |
| 6529096 | Dielectric filter, antenna duplexer, and communications appliance | Tomoya Maekawa, Hiroshi Kushitani, Hiroshi Shigemura, Toru Yamada, Hideaki Nakakubo | 2003-03-04 |
| 6515559 | In-band-flat-group-delay type dielectric filter and linearized amplifier using the same | Takehiko Yamakawa, Toru Yamada, Minoru Tachibana, Toshiaki Nakamura, Hiroyuki Nakamatsu | 2003-02-04 |
| 6510607 | Method for forming a dielectric laminated device | Hideaki Nakakubo, Toru Yamada, Hiroshi Kagata, Tatsuya Inoue, Shoichi Kitazawa | 2003-01-28 |