P

Inventor

TAKEUCHI AKIHIRO

JP66 patents
⚠️ This page may combine multiple inventors who share the name “TAKEUCHI AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

14 patents
US4812783AMar 14, 1989

Phase locked loop circuit with quickly recoverable stability

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations95
US6115537ASep 5, 2000

Digital signal recording and reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD82 citations94
US5045939ASep 3, 1991

Apparatus utilizing motion detector for converting a maximum motion portion of a wide screen tv signal to a normal screen tv signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US5841941ANov 24, 1998

Encoded data stream recording and reproducing apparatus with tape speed, channel number, and cylinder speed control in accordance with bit rate

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US5258879ANov 2, 1993

Tracking error detection circuit of magnetic recording and reproduction apparatus for determining tracking error based on pilot signals recorded on a recording meedium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations82
US4873583AOct 10, 1989

Magnetic tape recording/reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US4395741AJul 26, 1983

Positionable element driving circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations73
US4393416AJul 12, 1983

Tracking system for a videotape recorder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations72
US5953486ASep 14, 1999

Recording and reproducing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations71
US4864421ASep 5, 1989

System for connecting a video signal recording/reproducing apparatus and a television receiver

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations70
US4307413ADec 22, 1981

Comb filter device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations66
US6141487AOct 31, 2000

Data recording/reproducing apparatus and method for high speed play

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations63
US5864647AJan 26, 1999

Recording and reproducing apparatus using basic data

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US5299003AMar 29, 1994

Signal processing apparatus for changing the frequency characteristics of an input signal

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63

SUMITOMO RUBBER IND

11 patents

TOYODA CHUO KENKYUSHO KK

9 patents

JTEKT CORP

7 patents

PANASONIC CORP

2 patents

MORIOKA YOSHIHIRO

1 patent

TOYOTA MOTOR CO LTD

1 patent

SAIGO KATSUO

1 patent

SUMIMOTO RUBBER IND LTD

1 patent

TOYOTA CHUO KENKYUSHO KK

1 patent

TOSHIBA CARRIER CORP

1 patent

SHINKO ELECTRIC IND CO

1 patent

Showing the top 50 of 66 patents by PatentIndex Score.