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:
May. 30, 2006
Filed:
May. 23, 2003
Toyoshi Sawada, Odawara, JP;
Masanori Suzuki, Suntoh-gun, JP;
Kohki Katoh, Tokyo, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Takuya Saito, Numazu, JP;
Masashi Nagayama, Numazu, JP;
Toyoshi Sawada, Odawara, JP;
Masanori Suzuki, Suntoh-gun, JP;
Kohki Katoh, Tokyo, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Takuya Saito, Numazu, JP;
Masashi Nagayama, Numazu, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A color toner including toner particles including a colorant, a binder resin, and a wax; and an external additive including at least one of an inorganic particulate material and a particulate resin, wherein the binder resin includes a polyester resin (A) having a crystallinity and a formula (—O—CO—CR1=CR2-CO—O—(CH)—), wherein R1 and R2 independently represents a hydrocarbon, and n and m are repeating numbers; a resin (B); and a resin (C), wherein the resins (B) and (C) and the wax have an island-sea structure such that the resin (C) is present like islands in a sea of the resin (B) and the wax is substantially included in the resin (C). A toner container, an image forming method, an image forming apparatus and a process cartridge including the color toner are also provided.