Issued Patents All Time
Showing 1–25 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12368221 | Dielectric filter | Masashi Arai | 2025-07-22 |
| 12051847 | Dielectric resonator, dielectric filter, and multiplexer | Yasuo Yamada, Muneyoshi YAMAMOTO | 2024-07-30 |
| 12027742 | Distributed constant filter, distributed constant line resonator, and multiplexer | Yoshinori Taguchi, Kengo Onaka, Yasuo Yamada, Muneyoshi YAMAMOTO, Tomohiro Nagai +1 more | 2024-07-02 |
| 10957958 | Dielectric resonator and dielectric filter | Masayuki KIKUDA | 2021-03-23 |
| 9799939 | Filtering device and method for adjusting filter characteristic | Masayuki KIKUDA, Yoshiki Yamada, Takahiro Okada | 2017-10-24 |
| 9787277 | Variable filter circuit and wireless communication apparatus | Takashi Ogami, Masakazu Tani, Shouzo Sugiyama | 2017-10-10 |
| 8519501 | Semiconductor light detecting element with grooved substrate | Yasuo Nakajima, Yasuhiro Kunitsugu | 2013-08-27 |
| 7804871 | Semiconductor laser | Tsutomu Yamaguchi, Takehiro Nishida, Harumi Nishiguchi, Yasuaki Yoshida | 2010-09-28 |
| 7756180 | Semiconductor laser | Tsutomu Yamaguchi, Takehiro Nishida, Harumi Nishiguchi, Yasuaki Yoshida | 2010-07-13 |
| 7482898 | Dielectric filter, dielectric duplexer, and communication apparatus | Masayuki Atokawa, Takayoshi Yui, Hideyuki Kato | 2009-01-27 |
| 7390683 | Method of manufacturing a semiconductor device including a slab layer with a periodic air hole structure and a linear defect region | Atsushi Sugitatsu, Susumu Noda | 2008-06-24 |
| 7308749 | Production method for dielectric resonator device | Takahiro Okada, Jinsei Ishihara, Hideyuki Kato | 2007-12-18 |
| 7042014 | Semiconductor device | Atsushi Sugitatsu, Susumu Noda | 2006-05-09 |
| 6940364 | Dielectric filter, dielectric duplexer, and communication apparatus | Masayuki Atokawa, Hideyuki Kato | 2005-09-06 |
| 6930571 | Dielectric filter, dielectric duplexer, and communication apparatus | Hideyuki Kato | 2005-08-16 |
| 6798552 | Semiconductor light modulator | — | 2004-09-28 |
| 6778751 | Optical modulator and photonic semiconductor device | Kazuhisa Takagi | 2004-08-17 |
| 6765457 | Dielectric filter, dielectric duplexer, and communication device having elongated through holes | Yukihiro Kitaichi | 2004-07-20 |
| 6694601 | Method of adjusting characteristics of dielectric filter | Haruo Matsumoto, Yasuo Yamada, Yukihiro Kitaichi, Tadahiro Yorita, Hideyuki Kato +2 more | 2004-02-24 |
| 6556101 | Dielectric resonator, dielectric filter, dielectric duplexer, and communication device | Hideyuki Kato, Haruo Matsumoto | 2003-04-29 |
| 6507250 | Dielectric filter, dielectric duplexer, and communication equipment | Hideyuki Kato, Motoharu Hiroshima, Haruo Matsumoto | 2003-01-14 |
| 6466109 | Dielectric filter having non-conductive adjusting regions | Haruo Matsumoto, Yasuo Yamada, Yukihiro Kitaichi, Tadahiro Yorita, Hideyuki Kato +2 more | 2002-10-15 |
| 6455338 | Method of manufacturing an integrated semiconductor laser-modulator device | Kazuhisa Takagi, Tohru Takiguchi | 2002-09-24 |
| 6411177 | Dielectric filter, dielectric duplexer, and communication apparatus | Hideyuki Kato, Motoharu Hiroshima | 2002-06-25 |
| 6400238 | Dielectric filter having side surface indentation | Haruo Matsumoto, Yasuo Yamada, Yukihiro Kitaichi, Tadahiro Yorita, Hideyuki Kato +2 more | 2002-06-04 |