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 patentsUS4812783AMar 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 patentsUS5099899AMar 31, 1992
Pneumatic radial tire for heavy load vehicles having increasing circumferential groove amplitude with wear
SUMITOMO RUBBER IND41 citations93
US4854358AAug 8, 1989
Tread pattern for a heavy load pneumatic tire which changes from a block pattern to a rib pattern with wear
SUMITOMO RUBBER IND36 citations93
USD294812SMar 22, 1988
Automobile tire
SUMITOMO RUBBER IND34 citations93
USD287706SJan 13, 1987
Automobile tire
SUMITOMO RUBBER IND34 citations93
US4955415ASep 11, 1990
Pneumatic radial tire with groove platforms to prevent stone entrapment
SUMITOMO RUBBER IND32 citations92
US4703788ANov 3, 1987
Tire tread with zig-zag grooves with projections in groove
SUMITOMO RUBBER IND32 citations91
US4955416ASep 11, 1990
Pneumatic radial tire carcass profile
SUMITOMO RUBBER IND24 citations90
US5131446AJul 21, 1992
Pneumatic radial tire for heavy loads, including four metal cord belt plies
SUMITOMO RUBBER IND39 citations89
USD287953SJan 27, 1987
Automobile tire
SUMITOMO RUBBER IND23 citations82
US4732195AMar 22, 1988
Radial tire tread for truck or bus
SUMITOMO RUBBER IND7 citations74
USD288083SFeb 3, 1987
Automobile tire
SUMITOMO RUBBER IND5 citations63
TOYODA CHUO KENKYUSHO KK
9 patentsUS4173725ANov 6, 1979
Piezoelectrically driven ultrasonic transducer
TOYODA CHUO KENKYUSHO KK174 citations98
US4105004AAug 8, 1978
Ultrasonic wave fuel injection and supply device
TOYODA CHUO KENKYUSHO KK90 citations96
US4074152AFeb 14, 1978
Ultrasonic wave generator
TOYODA CHUO KENKYUSHO KK63 citations96
US5172023ADec 15, 1992
Ultrasonic motor
TOYODA CHUO KENKYUSHO KK69 citations95
US4408479AOct 11, 1983
Knocking detecting device for internal combustion engines
TOYODA CHUO KENKYUSHO KK30 citations91
US4106459AAug 15, 1978
Ultrasonic wave carburetor
TOYODA CHUO KENKYUSHO KK25 citations82
US4019683AApr 26, 1977
Liquid atomizing apparatus utilizing ultrasonic wave
TOYODA CHUO KENKYUSHO KK24 citations82
US4256987AMar 17, 1981
Constant current electrical circuit for driving piezoelectric transducer
TOYODA CHUO KENKYUSHO KK14 citations73
US4034244AJul 5, 1977
Resonant cylindrically shaped ultrasonic wave generator
TOYODA CHUO KENKYUSHO KK11 citations73
JTEKT CORP
7 patentsUS8887580B2Nov 18, 2014
Torque detection device, method of manufacturing torque detection device, and electric power steering system including torque detection device
JTEKT CORP11 citations76
USD1027742SMay 21, 2024
Wheelchair
JTEKT CORP5 citations70
US9341528B2May 17, 2016
Torque detector and steering system including the torque detector
JTEKT CORP5 citations70
USD1027741SMay 21, 2024
Wheelchair
JTEKT CORP2 citations69
US10067016B2Sep 4, 2018
Torque detecting apparatus and method for manufacturing the same
JTEKT CORP3 citations68
US10724620B2Jul 28, 2020
Worm wheel, electric power steering system, and manufacturing method for worm wheel
JTEKT CORP4 citations67
US8806962B2Aug 19, 2014
Torque detection device and electric power steering system including the same
JTEKT CORP4 citations65
PANASONIC CORP
2 patentsMORIOKA YOSHIHIRO
1 patentTOYOTA MOTOR CO LTD
1 patentSAIGO KATSUO
1 patentSUMIMOTO RUBBER IND LTD
1 patentTOYOTA CHUO KENKYUSHO KK
1 patentTOSHIBA CARRIER CORP
1 patentSHINKO ELECTRIC IND CO
1 patentShowing the top 50 of 66 patents by PatentIndex Score.