Kazuhiko Harasaki

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Media gateway and control method thereof
- Patent number 8,000,335
- Issue date Aug 16, 2011
- NEC Corporation
- Shingo Shiga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic setting of security in communication network system
- Patent number 7,623,666
- Issue date Nov 24, 2009
- NEC Corporation
- Shinichiro Motoyoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SWITCHING APPARATUS OF TIME DIVISION MULTIPLEXING SYSTEM FOR CONTRO...
- Patent number 6,674,753
- Issue date Jan 6, 2004
- NEC Corporation
- Kazuhiko Harasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
External signal synchronized message signaling apparatus for time d...
- Patent number 6,590,908
- Issue date Jul 8, 2003
- NEC Corporation
- Kazuhiko Harasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
MOBILE COMMUNICATION MANAGEMENT SYSTEM
- Publication number 20090154396
- Publication date Jun 18, 2009
- NEC CORPORATION
- Ippei Akiyoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MEDIA GATEWAY AND CONTROL METHOD THEREOF
- Publication number 20080192759
- Publication date Aug 14, 2008
- SHINGO SHIGA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Automatic setting of security in communication network system
- Publication number 20050028011
- Publication date Feb 3, 2005
- NEC Corporation
- Shinichiro Motoyoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Signaling gateway system and network management method for use in t...
- Publication number 20030021293
- Publication date Jan 30, 2003
- NEC Corporation
- Kazuhiko Harasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Telephone subscriber call signal control device and subscriber circ...
- Publication number 20010006549
- Publication date Jul 5, 2001
- NEC Corporation
- Kazuhiko Harasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE