Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111106 | Bus communication system by unrestrained connection and a communication control method therefor | — | 2006-09-19 |
| 6912207 | Network topology design apparatus and network topology design method, and recording medium recorded with a network topology design program | Wataru Funakoshi, Masanori Ozawa | 2005-06-28 |
| 5926065 | Digital modulator having a digital filter including low-speed circuit components | Hirotake Wakai, Fumihito Tomaru | 1999-07-20 |
| 5889766 | Transmission/reception method based on frequency division multiple access having changeable communication channel bandwidths and communication apparatus employing the method | Yukinari Fujiwara | 1999-03-30 |
| 5682431 | FM stereo broadcasting apparatus and method | Masaaki Ohta, Ikuzi Fuzitani, Toshiaki Nario, Kazuhisa Hayeiwa, Yoshihiko Nasu | 1997-10-28 |
| 5566191 | Soft decision maximum likelihood decoding method with adaptive metric | Yasuko Shinata, Yoshiaki Asakawa, Masahiro Koya | 1996-10-15 |
| 5473280 | Modulation/demodulation method and system for realizing quadrature modulation/demodulation technique used in digital mobile radio system with complex signal processing | Masaaki Ohta, Masaru Adachi | 1995-12-05 |
| 5279856 | Hydrophilic porous membrane, method of manufacturing the same and liquid filter using same | Noriyuki Koyama, Shinsuke Yokomachi, Yasushi Nemoto | 1994-01-18 |
| 5244578 | Blood plasma-separating membrane and blood plasma separator using the membrane | Kenichi Shimura | 1993-09-14 |
| 5216505 | Scanning line interpolation circuit | Masahiro Kageyama, Norihiro Suzuki, Kazuo Ishikura, Hiroshi Yoshigi, Takahiko Fukinuki | 1993-06-01 |
| 5203997 | Hydrophilic porous membrane, method of manufacturing the same and liquid filter using the same | Noriyuki Koyama, Shinsuke Yokomati, Yasushi Nemoto | 1993-04-20 |
| 5180492 | Hydrophilic porous material sterilizable with gamma-ray | Kenichi Shimura | 1993-01-19 |
| 5028332 | Hydrophilic material and method of manufacturing | — | 1991-07-02 |
| 4926499 | Carrier phase controller for a receiver of phase modulated signals | Naoya Kobayashi, Yoshiro Kokuryo | 1990-05-15 |
| 4823346 | Maximum likelihood decoder | Naoya Kobayashi, Yoshiro Kokuryo | 1989-04-18 |
| 4737728 | Digitally processed demodulator for quadrature modulated signals | Shigeki Nakamura, Yasufumi Takahashi | 1988-04-12 |
| 4680556 | Digital modulation apparatus | Shigeki Nakamura, Yasufumi Takahashi | 1987-07-14 |
| 4337518 | Recursive-type digital filter with reduced round-off noise | Hiroshi Kuwahara, Narimichi Maeda | 1982-06-29 |
| 4305133 | Recursive type digital filter | Eiichi Amada, Hiroshi Kuwahara | 1981-12-08 |
| 4285047 | Digital adder circuit with a plurality of 1-bit adders and improved carry means | — | 1981-08-18 |
| 4261051 | Time-division-multiplexed exchanger | Hirotoshi Shirasu | 1981-04-07 |
| 4223389 | Recursive digital filter having means to prevent overflow oscillation | Eiichi Amada | 1980-09-16 |