P

Inventor

TAKAHASHI JIRO

JP54 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI JIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KONISHIROKU PHOTO IND

28 patents
US4557991ADec 10, 1985

Toner for development of electrostatic image containing binder resin and wax

KONISHIROKU PHOTO IND63 citations94
US4652509AMar 24, 1987

Toner for developing electrostatic latent image

KONISHIROKU PHOTO IND25 citations93
US4960664AOct 2, 1990

Developer composition for developing electrostatic image and toner image forming process

KONISHIROKU PHOTO IND32 citations92
US5047305ASep 10, 1991

Electrostatic-image developing polyester toner with release agent

KONISHIROKU PHOTO IND22 citations91
US4637973AJan 20, 1987

Image forming process for electrophotography

KONISHIROKU PHOTO IND23 citations82
US4614700ASep 30, 1986

Image forming process with magnetic brush development

KONISHIROKU PHOTO IND20 citations82
US4426432AJan 17, 1984

Electrophotosensitive receptor with trisazo compound

KONISHIROKU PHOTO IND21 citations82
US4579802AApr 1, 1986

Method of fixing toner image

KONISHIROKU PHOTO IND21 citations81
US4935327AJun 19, 1990

Polyester toner with antioxidant for development of electrostatic latent image

KONISHIROKU PHOTO IND17 citations74
US4537847AAug 27, 1985

Disazo photoreceptors for electrophotography

KONISHIROKU PHOTO IND10 citations74
US5021317AJun 4, 1991

Electrostatic latent image developer with toner particles surface treated with a polysiloxane having ammonium salt functional groups

KONISHIROKU PHOTO IND18 citations73
US4877704AOct 31, 1989

Process for developing latent electrostatic image using toner containing polyester resin

KONISHIROKU PHOTO IND15 citations73
US4514486AApr 30, 1985

Method for the formation of images

KONISHIROKU PHOTO IND14 citations73
US4425422AJan 10, 1984

Formation of color photographic image with azo dye containing alkoxy or thioalkoxy metal chelating group

KONISHIROKU PHOTO IND7 citations73
US5116713AMay 26, 1992

Toner for developing latent electrostatic image

KONISHIROKU PHOTO IND17 citations72
US4725521AFeb 16, 1988

Carrier for developing electrostatic image

KONISHIROKU PHOTO IND12 citations72
US4943507AJul 24, 1990

Toner for developing electrostatic latent image and method for developing electrostatic latent image with the same

KONISHIROKU PHOTO IND16 citations71
US4693952ASep 15, 1987

Toner for developing electrostatic latent image

KONISHIROKU PHOTO IND18 citations71
US5601923AFeb 11, 1997

Mono-dispersed irregular-shaped fine polymer particles

KONISHIROKU PHOTO IND3 citations63
US4770969ASep 13, 1988

Heat fusible toners for developing electrostatic images

KONISHIROKU PHOTO IND2 citations62
US4368260AJan 11, 1983

Photographic light sensitive element

KONISHIROKU PHOTO IND5 citations62
US4256831AMar 17, 1981

Light-sensitive photographic element comprising a magenta image dye-providing compound

KONISHIROKU PHOTO IND2 citations62
US4247629AJan 27, 1981

Light-sensitive photographic element comprising a cyan image dye-providing compound

KONISHIROKU PHOTO IND5 citations62
US4225708ASep 30, 1980

2-Sulfamoyl-5-sulfamido-1-naphthols

KONISHIROKU PHOTO IND4 citations62
US4421846ADec 20, 1983

Photographic element with reducible metal complex that releases photographically useful compound

KONISHIROKU PHOTO IND3 citations61
US4495261AJan 22, 1985

Electrophotographic substituted p,p'-bisazo diphenyl acrylonitrile compounds for photoreceptors

KONISHIROKU PHOTO IND2 citations60
US4149892AApr 17, 1979

Color diffusion transfer photographic elements

KONISHIROKU PHOTO IND4 citations60
US4123330AOct 31, 1978

Color diffusion transfer process using benzyl alcohol and derivatives thereof

KONISHIROKU PHOTO IND0 citations51

JSR CORP

4 patents

TOSETZ CO LTD

3 patents

SAKURAI TOMONORI

3 patents

HITACHI DENSHI SERVICE KK

2 patents

MURAYAMA KAZUNORI

2 patents

FUJITSU LTD

2 patents

FUJI CHEM IND CO LTD

2 patents

HITACHI ELECTRONIC SERVICES CO

1 patent

MITSUBISHI ELECTRIC CORP

1 patent

HONDA TOMOAKI

1 patent

ASTA PHARMACEUTICALS CO LTD

1 patent

Showing the top 50 of 54 patents by PatentIndex Score.