Keiichiro YAMAKAWA

Follow

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Relay device
- Patent number 8,942,619
- Issue date Jan 27, 2015
- Fujitsu Limited
- Kiyomi Hasesaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call controlling apparatus, call controlling method, and computer p...
- Patent number 7,890,101
- Issue date Feb 15, 2011
- Fujitsu Limited
- Keiichiro Yamakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
RELAY DEVICE
- Publication number 20130059527
- Publication date Mar 7, 2013
- Fujitsu Limited
- Kiyomi HASESAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Call controlling apparatus, call controlling method, and computer p...
- Publication number 20070191004
- Publication date Aug 16, 2007
- FUJITSU LIMITED
- Keiichiro Yamakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE