P

Inventor

ITAYA MASAHIKO

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

KONISHIROKU PHOTO IND

31 patents
US4624559ANov 25, 1986

Developing method for electrostatic latent image

KONISHIROKU PHOTO IND31 citations93
US5327208AJul 5, 1994

Color image forming apparatus with a multicolor detachable process unit

KONISHIROKU PHOTO IND26 citations92
US5054419AOct 8, 1991

Image forming apparatus

KONISHIROKU PHOTO IND23 citations92
US5030988AJul 9, 1991

Color image forming apparatus

KONISHIROKU PHOTO IND25 citations92
US4530597AJul 23, 1985

Brush cleaning device

KONISHIROKU PHOTO IND26 citations82
US4492456AJan 8, 1985

Device for developing electrostatic latent images

KONISHIROKU PHOTO IND20 citations82
US4480911ANov 6, 1984

Developing apparatus and a developing method of an electrostatic image

KONISHIROKU PHOTO IND22 citations82
US4431296AFeb 14, 1984

Developing method and apparatus therefor

KONISHIROKU PHOTO IND19 citations82
US5103261AApr 7, 1992

Clamshell type color image forming apparatus

KONISHIROKU PHOTO IND21 citations78
US5075726ADec 24, 1991

Toner density control device with adjustable reference values for multiple developer copier

KONISHIROKU PHOTO IND19 citations74
US4822711AApr 18, 1989

Electrostatic image-developing process using a magnetic roller

KONISHIROKU PHOTO IND18 citations74
US4814818AMar 21, 1989

Developer layer forming apparatus

KONISHIROKU PHOTO IND7 citations74
US4664505AMay 12, 1987

Electrostatic image reproducing apparatus

KONISHIROKU PHOTO IND14 citations74
US4530595AJul 23, 1985

Toner cleaning method and apparatus in which voltage is impressed between electrostatic image holder and a film member

KONISHIROKU PHOTO IND13 citations74
US4525056AJun 25, 1985

Developing means for electrostatic latent image

KONISHIROKU PHOTO IND8 citations74
US4500616AFeb 19, 1985

Extraction developing method for electrostatic latent images

KONISHIROKU PHOTO IND14 citations74
US4499169AFeb 12, 1985

Developing method

KONISHIROKU PHOTO IND8 citations74
US4486089ADec 4, 1984

Magnetic brush developing means

KONISHIROKU PHOTO IND15 citations74
US5287161AFeb 15, 1994

Color image forming apparatus with a multicolor detachable process unit

KONISHIROKU PHOTO IND12 citations73
US5191378AMar 2, 1993

Electrostatic recording apparatus in which a transfer material conveyance belt detach point is located downstream from the image retainer

KONISHIROKU PHOTO IND17 citations73
US5140411AAug 18, 1992

Image reading apparatus capable of discriminating between a chromatic and an achromatic portion of an image

KONISHIROKU PHOTO IND16 citations73
US5121166AJun 9, 1992

Belt type transfer device

KONISHIROKU PHOTO IND11 citations73
US5024181AJun 18, 1991

Method for the development of an electrostatic latent image

KONISHIROKU PHOTO IND12 citations73
US4908291AMar 13, 1990

Method of regulating the thickness of a developer layer containing magnetic carrier and toner particles

KONISHIROKU PHOTO IND12 citations73
US4669864AJun 2, 1987

Image forming apparatus

KONISHIROKU PHOTO IND16 citations73
US4979000ADec 18, 1990

Paper separating charger capable of discharging currents of various duty factors and frequencies

KONISHIROKU PHOTO IND16 citations72
US4479709AOct 30, 1984

Cleaning method for electrophotography and means therefor

KONISHIROKU PHOTO IND10 citations69
US4553500ANov 19, 1985

Apparatus and method for developing electrostatic latent image

KONISHIROKU PHOTO IND5 citations63
US4491083AJan 1, 1985

Means for developing an electrostatic latent image

KONISHIROKU PHOTO IND2 citations63
US4478870AOct 23, 1984

Corona image transfer method

KONISHIROKU PHOTO IND3 citations63
US4477174AOct 16, 1984

Developing device

KONISHIROKU PHOTO IND3 citations63

RICOH KK

12 patents

AUSTRALIA RES LAB

4 patents

NIPPON STEEL CORP

2 patents

SAMSUNG ELECTRONICS CO LTD

1 patent

Showing the top 50 of 54 patents by PatentIndex Score.