P

Inventor

UCHIYAMA MASAKI

JP64 patents
⚠️ This page may combine multiple inventors who share the name “UCHIYAMA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

34 patents
US5863697AJan 26, 1999

Toner for developing electrostatic image and process for production thereof

CANON KK36 citations93
US5795694AAug 18, 1998

Toner for developing electrostatic image

CANON KK17 citations93
US4565763AJan 21, 1986

Process for producing toner

CANON KK38 citations93
US5268248ADec 7, 1993

Toner for developing electrostatic image and process for production thereof

CANON KK27 citations92
US5202731AApr 13, 1993

Image forming apparatus having an alternating bias electric field

CANON KK39 citations92
US5175070ADec 29, 1992

Image forming method and image forming apparatus

CANON KK25 citations92
US4737432AApr 12, 1988

Positively chargeable toner and developer for developing electrostatic images contains di-organo tin borate charge controller

CANON KK32 citations92
US4640882AFeb 3, 1987

Image forming method of negative latent images using silica particles

CANON KK34 citations92
US4626487ADec 2, 1986

Particulate developer containing inorganic scraper particles and image forming method using the same

CANON KK37 citations92
US5480755AJan 2, 1996

Magnetic toner, image forming method, surface-modified fine silica powder and process for its production

CANON KK28 citations90
US5849453ADec 15, 1998

Image forming method including recycling of untransferred toner collected from image bearing member to developing means

CANON KK18 citations84
US5863695AJan 26, 1999

Toner for developing electrostatic image and image forming method

CANON KK16 citations82
US5504272AApr 2, 1996

Magnetic toner having defined particle distribution

CANON KK17 citations82
US4340660AJul 20, 1982

Toner for development having crosslinked polymers

CANON KK22 citations82
US5500318AMar 19, 1996

Toner for developing electrostatic image and fixing method

CANON KK16 citations81
US4568625AFeb 4, 1986

Developer comprising a modified silicone oil and development process for electrophotography

CANON KK25 citations81
US5629122AMay 13, 1997

Toner for developing electrostatic image and image forming method

CANON KK8 citations74
US5415967AMay 16, 1995

Process for producing toner

CANON KK12 citations74
US5348829ASep 20, 1994

Monocomponent-type developer for developing electrostatic image and image forming method

CANON KK16 citations74
US5338894AAug 16, 1994

Image forming method with improved development

CANON KK13 citations74
US5296326AMar 22, 1994

Magnetic toner

CANON KK14 citations74
US5212524AMay 18, 1993

Toner for developing electrostatic images, image forming method and image forming apparatus

CANON KK11 citations74
US5169738ADec 8, 1992

Toner for developing electrostatic images, image forming method and image forming apparatus

CANON KK14 citations74
US4590140AMay 20, 1986

Toner application method and treated magnetic particles for use therein

CANON KK12 citations74
US4565766AJan 21, 1986

Developing powder

CANON KK7 citations74
US4481274ANov 6, 1984

Developing powder having oinylic, crosslinked binder and olefin polymer

CANON KK13 citations74
US4299900ANov 10, 1981

Electrostatic image magnetic developing process

CANON KK13 citations74
US5641600AJun 24, 1997

Magnetic toner and image forming method

CANON KK14 citations73
US5330871AJul 19, 1994

Toner for developing electrostatic image

CANON KK12 citations73
US4554234ANov 19, 1985

Toner application method and composition therefor

CANON KK10 citations73
US4543312ASep 24, 1985

Magnetic toner comprising magnetic powders having controlled size distribution

CANON KK18 citations73
US4448870AMay 15, 1984

Magnetic color toner

CANON KK14 citations73
US5219946AJun 15, 1993

Binder resin and process for producing it

CANON KK5 citations63
US4666815AMay 19, 1987

Method for developing electrostatic latent image with non-magnetic toner

CANON KK6 citations62

DENSO CORP

8 patents

TOYOTA MOTOR CO LTD

5 patents

SEIKO EPSON CORP

3 patents

Showing the top 50 of 64 patents by PatentIndex Score.