Hisashi Kawai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Radio communication system and overhang station apparatus
- Patent number 7,680,095
- Issue date Mar 16, 2010
- Hitachi Kokusai Electric Inc.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitter for suppressing a variation in input level of a multica...
- Patent number 7,489,907
- Issue date Feb 10, 2009
- Hitachi Kokusai Electric Inc.
- Norio Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Spreading code generation circuit and demodulation circuit
- Patent number 7,110,441
- Issue date Sep 19, 2006
- Hitachi Kokusai Electric Inc.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Code division multiple access receiver
- Patent number 7,020,181
- Issue date Mar 28, 2006
- Hitachi Kokusai Electric Inc.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for filtering received signals for mobile telepho...
- Patent number 6,760,360
- Issue date Jul 6, 2004
- Kokusai Electric Co., Ltd.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Synchronous circuit and receiver
- Patent number 6,707,844
- Issue date Mar 16, 2004
- Kokusai Electric Co., Ltd.
- Ichiro Imaizumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency control and orthogonal detection circuit and FSK receiver
- Patent number 6,553,083
- Issue date Apr 22, 2003
- Kokusai Electric Co., Ltd.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Radio communication system and overhang station apparatus
- Publication number 20070281643
- Publication date Dec 6, 2007
- Hitachi Kokusai Electric Inc.
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmitter
- Publication number 20060189282
- Publication date Aug 24, 2006
- Norio Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE INPUT DEVICE FOR INPUTTING IMAGES OF A PLURALITY OF SUBJECTS...
- Publication number 20030081113
- Publication date May 1, 2003
- HISASHI KAWAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Spreading code generation circuit and demodulation circuit
- Publication number 20020186754
- Publication date Dec 12, 2002
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Code division multiple access receiver
- Publication number 20020110182
- Publication date Aug 15, 2002
- Hisashi Kawai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hisashi Kawai

Person

Patents Grantslast 30 patents

Radio communication system and overhang station apparatus

Transmitter for suppressing a variation in input level of a multica...

Spreading code generation circuit and demodulation circuit

Code division multiple access receiver

Device and method for filtering received signals for mobile telepho...

Synchronous circuit and receiver

Frequency control and orthogonal detection circuit and FSK receiver

Patents Applicationslast 30 patents

Radio communication system and overhang station apparatus

Transmitter

IMAGE INPUT DEVICE FOR INPUTTING IMAGES OF A PLURALITY OF SUBJECTS...

Spreading code generation circuit and demodulation circuit

Code division multiple access receiver