Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6362795 | Antenna apparatus and transmission and receiving apparatus using the same | Toru Tanizaki, Fuminori Nakamura, Ikuo Takakuwa | 2002-03-26 |
| 6359536 | High frequency multi-layer module with electronic component receiving aperture and conductive via | Koichi Sakamoto, Kenichi Iio, Sadao Yamashita | 2002-03-19 |
| 6323740 | High-frequency circuit device and communication apparatus | Kenichi Iio, Takatoshi Kato, Koichi Sakamoto | 2001-11-27 |
| 6285269 | High-frequency semiconductor device having microwave transmission line being formed by a gate electrode source electrode and a dielectric layer in between | Koichi Sakamoto, Sadao Yamashita, Takehisa Kajikawa | 2001-09-04 |
| 6281763 | Dielectric resonator, dielectric filter, dielectric duplexer, and method for manufacturing dielectric resonator | Seiji Hidaka, Norifumi Matsui, Tomoyuki Ise | 2001-08-28 |
| 6255914 | TM mode dielectric resonator and TM mode dielectric filter and duplexer using the resonator | Seiji Hidaka, Norifumi Matsui, Tomoyuki Ise, Kazuhiko Kubota | 2001-07-03 |
| 6246298 | Dielectric line switch and antenna device | Koichi Sakamoto, Toru Tanizaki, Hiroshi Nishida, Taiyo Nishiyama, Nobuhiro Kondo +3 more | 2001-06-12 |
| 6188360 | Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment | Takatoshi Kato, Koichi Sakamoto, Kenichi Iio | 2001-02-13 |
| 6184758 | Dielectric resonator formed by polygonal openings in a dielectric substrate, and a filter, duplexer, and communication apparatus using same | Toshiro Hiratsuka, Tomiya Sonoda, Shigeyuki Mikami, Yutaka Ida, Kiyoshi Kanagawa | 2001-02-06 |
| 6175335 | Dielectric lens antenna having heating body and radio equipment including the same | Koichi Sakamoto, Hideaki Yamada, Fuminori Nakamura | 2001-01-16 |
| 6169301 | Planar dielectric integrated circuit | Koichi Sakamoto, Sadao Yamashita, Takehisa Kajikawa | 2001-01-02 |
| 6166614 | Nonradiative planar dielectric line and integrated circuit | Koichi Sakamoto, Atsushi Saitoh, Kenichi Iio | 2000-12-26 |
| 6144268 | High-frequency transmission line, dielectric resonator, filter, duplexer, and communication device, with an electrode having gaps in an edge portion | Norifumi Matsui, Seiji Hidaka | 2000-11-07 |
| 6104264 | Dielectric waveguide of a laminated structure | Toru Tanizaki, Hiroshi Nishida, Atsushi Saitoh | 2000-08-15 |
| 6100554 | High-frequency semiconductor device | Koichi Sakamoto | 2000-08-08 |
| 6087912 | High frequency multi-layer module comprising a dielectric resonator | Koichi Sakamoto, Kenichi Iio, Sadao Yamashita | 2000-07-11 |
| 6069543 | Dielectric resonator capable of varying resonant frequency | Toshiro Hiratsuka, Sadao Yamashita, Kenichi Iio | 2000-05-30 |
| 6066598 | Superconducting multilayer electrode and method of producing same | Seiji Hidaka, Norihumi Matsui, Tomoyuki Ise | 2000-05-23 |
| 6052041 | TM mode dielectric resonator and TM mode dielectric filter and duplexer using the resonator | Seiji Hidaka, Norifumi Matsui, Tomoyuki Ise, Kazuhiko Kubota | 2000-04-18 |
| 6052087 | Antenna device and radar module | Koichi Sakamoto, Kenichi Iio, Hideaki Yamada | 2000-04-18 |
| 6011983 | Band-pass filter apparatus using superconducting integrated nonradiative dielectric waveguide | Seiji Hidaka, Norifumi Matsui | 2000-01-04 |
| 6008755 | Antenna-shared distributor and transmission and receiving apparatus using same | Toru Tanizaki, Hiroshi Nishida, Atsushi Saitoh | 1999-12-28 |
| 5986527 | Planar dielectric line and integrated circuit using the same line | Toshiro Hiratsuka, Sadao Yamashita, Kenichi Iio | 1999-11-16 |
| 5982032 | Electronic device having FETs on a low dielectric constant GaAs base member and passive elements on a high dielectric constant base member | Koichi Sakamoto, Hiroaki Tanaka | 1999-11-09 |
| 5945894 | Dielectric resonator and filter utilizing a non-radiative dielectric waveguide device | Toshiro Hiratsuka, Kenichi Iio, Sadao Yamashita | 1999-08-31 |