P

Inventor

NAKAI HIROSHI

JP127 patents
⚠️ This page may combine multiple inventors who share the name “NAKAI HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

20 patents
US6468706B2Oct 22, 2002

Two-component developer, container filled with the two-component developer, and image formation apparatus

RICOH KK130 citations99
US6699632B2Mar 2, 2004

Image forming toner, and image forming method and image forming apparatus using the toner

RICOH KK72 citations98
US6667141B2Dec 23, 2003

Image forming method and apparatus

RICOH KK98 citations98
US6030736AFeb 29, 2000

Electrophotographic photoconductor with polysiloxane mixture

RICOH KK87 citations97
US7103301B2Sep 5, 2006

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK47 citations96
US6593048B2Jul 15, 2003

Two-component developer, and image forming apparatus and image forming method using the developer

RICOH KK97 citations96
US6544704B1Apr 8, 2003

Two-component developer, container filled with the two-component developer, and image formation apparatus

RICOH KK59 citations96
US7653339B2Jan 26, 2010

Protective agent, image forming apparatus, and process cartridge

RICOH KK18 citations93
US6911289B2Jun 28, 2005

Toner, method for manufacturing the toner, and image forming method and apparatus using the toner

RICOH KK26 citations93
US6856781B2Feb 15, 2005

Image forming apparatus and method of developing an electrostatic latent image

RICOH KK25 citations93
US6813461B2Nov 2, 2004

Toner, method for manufacturing the toner, and image forming method and apparatus using the toner

RICOH KK26 citations93
US6811944B2Nov 2, 2004

Toner, method for manufacturing the toner, and image forming method and apparatus using the toner

RICOH KK36 citations93
US7620336B2Nov 17, 2009

Apparatus and method for fixing an image

RICOH KK21 citations92
US7383013B2Jun 3, 2008

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK18 citations92
US7251437B2Jul 31, 2007

Image formation apparatus having a body to be charged with specified properties and including the use of a protective material

RICOH KK44 citations92
US7212753B2May 1, 2007

Image forming apparatus and process cartridge

RICOH KK23 citations92
US7029816B2Apr 18, 2006

Electrographic image formation method

RICOH KK20 citations92
US6790575B2Sep 14, 2004

Two-component developer, image forming apparatus, and image forming method

RICOH KK43 citations92
US7251438B2Jul 31, 2007

Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged

RICOH KK8 citations74
US6816695B2Nov 9, 2004

Method and device for development for an image forming apparatus

RICOH KK8 citations74

SANSHIN KOGYO KK

8 patents

CANON KK

7 patents

RICOH CO LTD

4 patents

DAIHEN CORP

3 patents

PANASONIC IP MAN CO LTD

1 patent

TAKAHASHI YUKIO

1 patent

FURUNO ELECTRIC CO

1 patent

SK KAKEN CO LTD

1 patent

TANAKA SHINYA

1 patent

YAMASHITA MASAHIDE

1 patent

WATANABE KAZUHIKO

1 patent

MITSUBISHI GAS CHEMICAL CO

1 patent

Showing the top 50 of 127 patents by PatentIndex Score.