Yasufumi Yumde

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Totsuka-ku, Yokohama-shi, Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording/reproducing method and apparatus
- Patent number 5,189,564
- Issue date Feb 23, 1993
- Nobutaka Amada
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for PCM recording and reproducing an audio sig...
- Patent number 4,937,686
- Issue date Jun 26, 1990
- Hitachi, Ltd.
- Takao Arai
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary head type magnetic recording and reproducing apparatus and m...
- Patent number 4,843,493
- Issue date Jun 27, 1989
- Hitachi, Ltd.
- Takashi Furuhata
- G11 - INFORMATION STORAGE
Information Patent Grant
VTR having magnetic-head array capable of recording/reproducing sig...
- Patent number 4,743,977
- Issue date May 10, 1988
- Hitachi, Ltd.
- Atsushi Yoshioka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Rotary head type PCM recorder
- Patent number 4,670,796
- Issue date Jun 2, 1987
- Hitachi, Ltd.
- Masaharu Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of receiving a video signal
- Patent number 4,292,652
- Issue date Sep 29, 1981
- Hitachi, Ltd.
- Yasufumi Yumde
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for transmitting a color video signal on a narrow-band trans...
- Patent number 4,210,927
- Issue date Jul 1, 1980
- Hitachi, Ltd.
- Yasufumi Yumde
- H04 - ELECTRIC COMMUNICATION TECHNIQUE