Katsumi Hasegawa

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Video-audio recording apparatus and method, and video-audio reprodu...
- Patent number 8,045,840
- Issue date Oct 25, 2011
- Victor Company of Japan, Limited
- Hisako Murata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Video-Audio Recording Apparatus and Method, and Video-Audio Reprodu...
- Publication number 20080002948
- Publication date Jan 3, 2008
- Hisako Murata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE