P

Inventor

SEKIGUCHI TAKESHI

JP67 patents
⚠️ This page may combine multiple inventors who share the name “SEKIGUCHI TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

22 patents
US9857711B2Jan 2, 2018

Toner

CANON KK34 citations94
US4957358ASep 18, 1990

Antifogging film and optical element using the same

CANON KK28 citations93
US4857997AAug 15, 1989

Color television camera incorporating a color resolving prism system

CANON KK28 citations92
US4589015AMay 13, 1986

Color television camera with bias light device featuring reduced color shading

CANON KK33 citations92
US4033674AJul 5, 1977

Zoom lens having a wide magnification variation range

CANON KK23 citations82
US3970366AJul 20, 1976

Highly variable magnification zoom lens system having a diaphragm with its apertures diameter varied in relation with zooming

CANON KK27 citations82
US4794417ADec 27, 1988

Photographing apparatus

CANON KK24 citations80
US4812911AMar 14, 1989

Adapter with built-in shutter

CANON KK16 citations74
US4345271AAug 17, 1982

Television camera

CANON KK14 citations74
US4262305AApr 14, 1981

TV Camera

CANON KK12 citations74
US4237475ADec 2, 1980

Television camera with test pattern

CANON KK15 citations74
US4236177ANov 25, 1980

Beam splitting prism assembly with bias light source

CANON KK14 citations74
US4216494AAug 5, 1980

Television camera with bias light

CANON KK8 citations74
US4084179AApr 11, 1978

Color television camera

CANON KK15 citations74
US9910375B2Mar 6, 2018

Yellow toner and method for producing the same

CANON KK2 citations73
US9580576B2Feb 28, 2017

Pigment dispersion and yellow resist composition for color filter and ink composition containing the pigment dispersion

CANON KK5 citations73
US9323168B2Apr 26, 2016

Yellow toner and process for producing the yellow toner

CANON KK5 citations73
US9170513B2Oct 27, 2015

Yellow toner

CANON KK5 citations73
US9069273B2Jun 30, 2015

Yellow toner and method for producing the yellow toner

CANON KK2 citations63
US4123777AOct 31, 1978

Color television camera having an auxiliary illumination source

CANON KK5 citations63
US4085419AApr 18, 1978

Color television camera

CANON KK6 citations63
US11597787B2Mar 7, 2023

Particle and method of producing the particle

CANON KK1 citations62

SUMITOMO ELECTRIC INDUSTRIES

17 patents
US4904012AFeb 27, 1990

Suction device

SUMITOMO ELECTRIC INDUSTRIES130 citations98
US5596665AJan 21, 1997

Optical module having structure for defining fixing position of sleeve

SUMITOMO ELECTRIC INDUSTRIES102 citations97
US5742480AApr 21, 1998

Optical module circuit board having flexible structure

SUMITOMO ELECTRIC INDUSTRIES131 citations96
US5712504AJan 27, 1998

Pin type light-receiving device, opto electronic conversion circuit, and opto-electronic conversion module

SUMITOMO ELECTRIC INDUSTRIES72 citations95
US5035087AJul 30, 1991

Surface grinding machine

SUMITOMO ELECTRIC INDUSTRIES86 citations94
US6900512B2May 31, 2005

Light-receiving module

SUMITOMO ELECTRIC INDUSTRIES12 citations82
US4955683ASep 11, 1990

Apparatus and a method for coupling an optically operative device with an optical fiber

SUMITOMO ELECTRIC INDUSTRIES18 citations81
USD396210SJul 21, 1998

Optical receiver/transmitter module

SUMITOMO ELECTRIC INDUSTRIES10 citations74
US5652425AJul 29, 1997

Photoelectric conversion module with noise compensation

SUMITOMO ELECTRIC INDUSTRIES14 citations74
US5157479AOct 20, 1992

Semiconductor device being capable of improving the packing density with a high heat radiation characteristics

SUMITOMO ELECTRIC INDUSTRIES9 citations74
US4958200ASep 18, 1990

Overcurrent protection circuit for semiconductor device

SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6806547B2Oct 19, 2004

Light-receiving module

SUMITOMO ELECTRIC INDUSTRIES11 citations73
US4844325AJul 4, 1989

Method and apparatus for die-bonding semiconductor chip bonding

SUMITOMO ELECTRIC INDUSTRIES9 citations73
US6977423B2Dec 20, 2005

Light-receiving assembly

SUMITOMO ELECTRIC INDUSTRIES6 citations72
US5104023AApr 14, 1992

Apparatus for fabrication semiconductor device

SUMITOMO ELECTRIC INDUSTRIES15 citations69
US5116642AMay 26, 1992

Thick film forming process

SUMITOMO ELECTRIC INDUSTRIES5 citations63
US4985597AJan 15, 1991

Optical semiconductor device

SUMITOMO ELECTRIC INDUSTRIES2 citations62

DAINIPPON PRINTING CO LTD

4 patents

NIPPON KOKAN KK

2 patents

SEKIGUCHI TAKESHI

2 patents

OMORI MACHINERY

1 patent

PANASONIC IP MAN CO LTD

1 patent

KAMATANI JUN

1 patent

Showing the top 50 of 67 patents by PatentIndex Score.