Membership
Tour
Register
Log in
Masuo Umemoto
Follow
Person
Hinodemachi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Magnetic recorder and magnetooptical recorder
Patent number
6,130,797
Issue date
Oct 10, 2000
Hitachi, Ltd.
Kyo Akagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital write-and-read method and signal processing apparatus
Patent number
5,881,071
Issue date
Mar 9, 1999
Hitachi, Ltd.
Alexander Kuznetsov
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic digital storage method and system wherein magnetic transit...
Patent number
5,786,952
Issue date
Jul 28, 1998
Hitachi, Ltd.
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Decision feedback equalization circuit
Patent number
5,594,756
Issue date
Jan 14, 1997
Hitachi, Ltd.
Wataru Sakurai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for digital signal recording and/or reproduction
Patent number
5,552,940
Issue date
Sep 3, 1996
Hitachi, Ltd.
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Replay equalization circuit in digital image recorder
Patent number
5,247,401
Issue date
Sep 21, 1993
Hitachi, Ltd.
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Demodulation circuit for digital modulated signal
Patent number
4,868,853
Issue date
Sep 19, 1989
Hitachi, Ltd.
Morishi Izumita
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit for detecting synchronizing code
Patent number
4,802,192
Issue date
Jan 31, 1989
Hitachi, Ltd.
Yoshizumi Eto
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital signal recording and reproducing system having an interface...
Patent number
4,791,495
Issue date
Dec 13, 1988
Hitachi Denshi Kabushiki Kaisha
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Dubbing method and apparatus for digital recording reproducing appa...
Patent number
4,775,897
Issue date
Oct 4, 1988
Hitachi, Ltd.
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for distributing and recording video signals and an apparatu...
Patent number
4,737,863
Issue date
Apr 12, 1988
Hitachi, Ltd.
Yoshizumi Eto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital data playback system
Patent number
4,700,240
Issue date
Oct 13, 1987
Hitachi, Ltd.
Masuo Umemoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for generating error correction codes for digi...
Patent number
4,698,811
Issue date
Oct 6, 1987
Hitachi, Ltd.
Yoshizumi Eto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of correcting errors of digital signals in the recording and...
Patent number
4,661,956
Issue date
Apr 28, 1987
Hitachi, Ltd.
Morishi Izumita
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Code modulation system
Patent number
4,628,297
Issue date
Dec 9, 1986
Hitachi, Ltd.
Seiichi Mita
G11 - INFORMATION STORAGE
Information
Patent Grant
Color imaging device
Patent number
4,467,347
Issue date
Aug 21, 1984
Hitachi, Ltd.
Naoki Ozawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Solid-state imaging apparatus with fixed pattern noise reduction
Patent number
4,283,742
Issue date
Aug 11, 1981
Hitachi, Ltd.
Morishi Izumita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Solid state color imaging apparatus
Patent number
4,281,338
Issue date
Jul 28, 1981
Hitachi, Ltd.
Kenji Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Solid-state color imaging device
Patent number
4,246,601
Issue date
Jan 20, 1981
Hitachi, Ltd.
Kazuhiro Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Solid-state color imaging device
Patent number
4,245,241
Issue date
Jan 13, 1981
Hitachi, Ltd.
Kazuhiro Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for recording and reproducing a video-disc wit...
Patent number
4,223,187
Issue date
Sep 16, 1980
Hitachi, Ltd.
Seiji Yonezawa
G11 - INFORMATION STORAGE