P

Inventor

MATSUDA HIROAKI

JP116 patents
⚠️ This page may combine multiple inventors who share the name “MATSUDA HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH KK

23 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
US6335137B1Jan 1, 2002

Electrophotographic toner and electrophotographic image forming method and apparatus using the toner

RICOH KK103 citations98
US6757507B2Jun 29, 2004

Image formation apparatus using a dry two-component developer for development

RICOH KK49 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
US5403690AApr 4, 1995

Developer for developing latent electrostatic images

RICOH KK76 citations95
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
US7029816B2Apr 18, 2006

Electrographic image formation method

RICOH KK20 citations92
US6902858B2Jun 7, 2005

Image formation apparatus using a dry two-component developer for development

RICOH KK21 citations92
US6902857B2Jun 7, 2005

Method for forming electrophotographic image and electrographic device

RICOH KK48 citations92
US6887636B2May 3, 2005

Toner for two-component developer, image forming method and device for developing electrostatic latent image

RICOH KK45 citations92
US6790575B2Sep 14, 2004

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

RICOH KK43 citations92
US6228550B1May 8, 2001

Two-component developer

RICOH KK35 citations92
US7378213B2May 27, 2008

Image forming process and image forming apparatus

RICOH KK13 citations84
US7166404B2Jan 23, 2007

Carrier for developer for developing electrostatic latent image, image forming method using same and image forming apparatus using same

RICOH KK11 citations84
US6656654B2Dec 2, 2003

Toner and two-component developer, container therefor, and image forming apparatus

RICOH KK14 citations84
US6534232B1Mar 18, 2003

Electrophotographic image formation method, carrier for two-component developer, two-component developer, container holding therein the two-component developer, and electrophotographic image formation apparatus

RICOH KK17 citations84
US7033718B2Apr 25, 2006

Toner and image forming apparatus using the toner

RICOH KK7 citations74

COMBI CO

8 patents

FUJITSU LTD

7 patents

COMBI CORP

4 patents

NIPPON ZEON CO

3 patents

ZEON CORP

2 patents

TERUMO CORP

1 patent

OGAWA TOKUDAI

1 patent

MATSUDA HIROAKI

1 patent

Showing the top 50 of 116 patents by PatentIndex Score.