Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268621 | Hydraulic control apparatus | Kunio Kimpara, Masayuki Nojo, Mamoru Murakami | 2022-03-08 |
| 10704679 | Hydraulic control device | Mamoru Murakami, Kunio Kimpara | 2020-07-07 |
| 7110486 | Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method | Hisashi Adachi, Toshifumi Nakatani, Masakatsu Maeda, Shunsuke Hirano | 2006-09-19 |
| 7050525 | Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method | Hisashi Adachi, Toshifumi Nakatani, Masakatsu Maeda, Shunsuke Hirano | 2006-05-23 |
| 7038557 | Antenna duplexer and mobile communication device using the same | Hiroyuki Nakamura, Toshio Ishizaki, Hisashi Adachi, Makoto Sakakura, Hiroyuki Itokawa +1 more | 2006-05-02 |
| 6825811 | Display-antenna integral structure and communication apparatus | Hiroshi Iwai, Atsushi Yamamoto, Koichi Ogawa, Kenichi Yamada | 2004-11-30 |
| 6803837 | Power splitter/combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Shin'ichi Kugou | 2004-10-12 |
| 6717998 | Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating method | Hisashi Adachi, Toshifumi Nakatani, Masakatsu Maeda, Shunsuke Hirano | 2004-04-06 |
| 6690249 | Power splitter/combiner multi-layer circuit | Kaoru Ishida, Masayuki Miyaji, Shin'ichi Kugou | 2004-02-10 |
| 6590906 | Multi-carrier transmitter circuit and communication equipment | Kaoru Ishida, Masayuki Miyaji, Shin'ichi Kugou | 2003-07-08 |
| 6563395 | Power splitter/combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Shin'ichi Kugou | 2003-05-13 |
| 6459915 | External adapter for a portable cellular phone | Hiroyuki Nakamura, Makoto Sakakura, Takaaki Maegawa, Kenichi Takahashi | 2002-10-01 |
| 6441692 | PLL frequency synthesizer | Toshifumi Nakatani, Hisashi Adachi, Yuji Saito, Shunsuke Hirano, Hiroshi Haruki | 2002-08-27 |
| 6421530 | Radio circuit having a local oscillator frequency which differs from the transmit frequency or the receive frequency and mobile radio apparatus | Hisashi Adachi, Kaoru Ishida, Hiroshi Haruki, Junichi Yasuno, Kazuhiko Ikeda | 2002-07-16 |
| 6347219 | Transmission system, transmission/reception system, and local oscillator to be used in the same | Koji Takinami, Hisashi Adachi, Ikuo Ohta, Jyunichi Yoshizumi, Toshiaki Nakamura | 2002-02-12 |
| 6329875 | Power amplifier, power control method for power amplifier, and communication equipment | Kaoru Ishida, Toshio Obara, Naoki Komatsu | 2001-12-11 |
| 6326845 | Feedforward amplifier | Masayuki Miyaji, Kaoru Ishida, Shin'ichi Kugou | 2001-12-04 |
| 6300848 | Power splitter and power combiner using N-branch-line-shaped directional couplers | Masayuki Miyaji, Kaoru Ishida, Shin'ichi Kugou | 2001-10-09 |
| 6269253 | Multi-mode wireless communication system | Takaaki Maegawa, Hiroyuki Nakamura, Makoto Sakakura, Junichi Takada | 2001-07-31 |
| 6259895 | Receiver and transmitter-receiver | Yoshishige Yoshikawa, Yoshio Horiike, Hisashi Adachi | 2001-07-10 |
| 6226499 | Radio circuit apparatus and radio communication equipment | Toshifumi Nakatani, Hisashi Adachi, Youichi Morinaga, Hiroyuki Itokawa, Shunsuke Hirano | 2001-05-01 |
| 6201439 | Power splitter/ combiner circuit, high power amplifier and balun circuit | Kaoru Ishida, Masayuki Miyaji, Shin'ichi Kugou | 2001-03-13 |
| 6175746 | Multiband mobile unit communication apparatus | Keiichi Nakayama, Seiichi Yamaguchi, Fujio Sasaki, Yukichi Aihara | 2001-01-16 |
| 6169461 | High-frequency oscillating circuit | Toshiaki Andoh, Makoto Sakakura, Takeshi Miura, Kaoru Ishida | 2001-01-02 |
| 6130897 | Time division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band system | Kaoru Ishida, Takashi Enoki, Yoichi Morinaga, Makoto Aisaka | 2000-10-10 |