P

Inventor

SASAKI SEISHI

25 patents
⚠️ This page may combine multiple inventors who share the name “SASAKI SEISHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

13 patents
US6226447B1May 1, 2001

Video signal recording and reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD159 citations98
US6430363B2Aug 6, 2002

Video signal recording and reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations95
US4910605AMar 20, 1990

Video signal recording method and apparatus for field-segment recording

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD64 citations95
US4887169ADec 12, 1989

Video signal recording and playback apparatus having varied-speed playback capability

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD65 citations95
US4006343AFeb 1, 1977

Code read-out means

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations94
US7231136B2Jun 12, 2007

Video signal recording and reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations92
US4745506AMay 17, 1988

Magnetic head for perpendicular magnetic recording and reproduction

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US4613918ASep 23, 1986

Perpendicular magnetic playback head and a perpendicular magnetic recording and reproducing device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD46 citations92
US3978317AAug 31, 1976

Optical bar code reader

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD106 citations91
US4477488AOct 16, 1984

Method of manufacturing magnetic recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US4807056AFeb 21, 1989

Method and apparatus for video signal recording and playback signal level compensation based on recorded reference signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US4700252AOct 13, 1987

Magnetic thin film head

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations72
US4654739AMar 31, 1987

Thin film magnetic head for reproducing perpendicular magnetization

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62

KOKUSAI ELECTRIC CO LTD

5 patents

SASAKI SEISHI

2 patents

HITACHI INT ELECTRIC INC

2 patents

YRP ADVANCED MOBILE COMM SYSTE

1 patent

PANASONIC CORP

1 patent

JAPAN BROADCASTING CORP

1 patent