The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2005
Filed:
Dec. 09, 2002
Takuya Saito, Numazu, JP;
Masanori Suzuki, Shizuoka-ken, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Toyoshi Sawada, Odawara, JP;
Tatsuhiko Osaki, Toyohashi, JP;
Satoshi Aratani, Gamagoori, JP;
Hiroki Ogiso, Gamagoori, JP;
Takuya Saito, Numazu, JP;
Masanori Suzuki, Shizuoka-ken, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Toyoshi Sawada, Odawara, JP;
Tatsuhiko Osaki, Toyohashi, JP;
Satoshi Aratani, Gamagoori, JP;
Hiroki Ogiso, Gamagoori, JP;
Ricoh Company, Ltd., Tokyo, JP;
Takemoto Yushi Kabushiki Kaisha, Gamagoori, JP;
Abstract
A charge control agent containing a calcium salt of a sulfoisophthalic acid compound. A toner for developing an electrostatic latent image including the above charge control agent, a binder resin and a colorant.