Yukinari Fujiwara

Person

Musashimurayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High-frequency power amplifying apparatus
- Patent number 6,603,359
- Issue date Aug 5, 2003
- Mobile Communications Tokyo Inc.
- Yukinari Fujiwara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Demodulator including adaptive equalizer and demodulating method in...
- Patent number 6,246,732
- Issue date Jun 12, 2001
- Hitachi Denshi Kabushiki Kaisha
- Takehiko Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission/reception method based on frequency division multiple...
- Patent number 5,889,766
- Issue date Mar 30, 1999
- Hitachi Denshi Kabushiki Kaisha
- Makoto Ohnishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Non-linear compensation circuit for a power amplifier
- Patent number 5,802,451
- Issue date Sep 1, 1998
- Hitachi Denshi Kabushiki Kaisha
- Masaru Adachi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system control method and communication system using...
- Patent number 5,771,263
- Issue date Jun 23, 1998
- Hitachi Denshi Kabushiki Kaisha
- Masayuki Kanazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mobile communication switching across cell boundaries
- Patent number 5,432,842
- Issue date Jul 11, 1995
- Hitachi, Ltd.
- Yasuaki Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier
- Patent number 5,068,624
- Issue date Nov 26, 1991
- Hitachi Denshi Kabushiki Kaisha
- Yoshio Taneichi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency synthesizer with low power consumption
- Patent number 4,754,235
- Issue date Jun 28, 1988
- Hitachi Denshi Kabushiki Kaisha
- Yukinari Fujiwara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
System for detecting abnormal condition of high frequency output si...
- Patent number 4,476,437
- Issue date Oct 9, 1984
- Hitachi Denshi Kabushiki Kaisha
- Yukinari Fujiwara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radio station system
- Patent number 4,231,116
- Issue date Oct 28, 1980
- Hitachi, Ltd.
- Nobuo Sekiguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
High-frequency power amplifying apparatus
- Publication number 20020140503
- Publication date Oct 3, 2002
- Mobile Communications Tokyo Inc.
- Yukinari Fujiwara
- H03 - BASIC ELECTRONIC CIRCUITRY

Yukinari Fujiwara

Person

Patents Grantslast 30 patents

High-frequency power amplifying apparatus

Demodulator including adaptive equalizer and demodulating method in...

Transmission/reception method based on frequency division multiple...

Non-linear compensation circuit for a power amplifier

Communication system control method and communication system using...

Mobile communication switching across cell boundaries

Amplifier

Frequency synthesizer with low power consumption

System for detecting abnormal condition of high frequency output si...

Radio station system

Patents Applicationslast 30 patents

High-frequency power amplifying apparatus