Katsumi Hirai

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
CDMA system mobile radio terminal equipment
- Patent number 7,020,122
- Issue date Mar 28, 2006
- Kabushiki Kaisha Toshiba
- Katsumi Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
CDMA mobile terminal apparatus
- Patent number 6,556,834
- Issue date Apr 29, 2003
- Kabushiki Kaisha Toshiba
- Shigeyuki Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cable network system with ingress noise suppressing function
- Patent number 6,530,087
- Issue date Mar 4, 2003
- Kabushiki Kaisha Toshiba
- Hiroshi Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission power control apparatus and a radio communication appa...
- Patent number 6,240,279
- Issue date May 29, 2001
- Kabushiki Kaisha Toshiba
- Tatsuo Nitta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cable network system with ingress noise suppressing function
- Patent number 6,160,990
- Issue date Dec 12, 2000
- Kabushiki Kaisha Toshiba
- Hiroshi Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE