Isao Hijikata

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Audio signal processing apparatus and related computer program
- Patent number 7,424,332
- Issue date Sep 9, 2008
- Victor Company of Japan, Ltd.
- Kazuhito Okayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive apparatus and drive control apparatus for optical system of c...
- Patent number 5,172,149
- Issue date Dec 15, 1992
- Victor Company of Japan, Ltd.
- Takaaki Sekiguchi
- G02 - OPTICS
Information Patent Grant
Zoom lens apparatus with auto-focusing
- Patent number 5,055,932
- Issue date Oct 8, 1991
- Victor Company of Japan, Ltd.
- Isao Hijikata
- G02 - OPTICS
Information Patent Grant
Automatic focusing system for use in cameras having zooming function
- Patent number 4,969,044
- Issue date Nov 6, 1990
- Victor Company of Japan, Ltd.
- Isao Hijikata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Audio signal processing apparatus and related computer program
- Publication number 20040098150
- Publication date May 20, 2004
- Kazuhito Okayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE