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:
Feb. 22, 2005
Filed:
Mar. 22, 2002
Toyoshi Sawada, Odawara, JP;
Masanori Suzuki, Suntoh-gun, JP;
Kohki Katoh, Suntoh-gun, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Takuya Saito, Numazu, JP;
Toyoshi Sawada, Odawara, JP;
Masanori Suzuki, Suntoh-gun, JP;
Kohki Katoh, Suntoh-gun, JP;
Yohichiroh Watanabe, Fuji, JP;
Keiko Shiraishi, Susono, JP;
Takuya Saito, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner, a developing method and apparatus is provided to satisfy both the low temperature fixation property and the hot offset property and that has a wide range of fixing temperature. The toner for an image formation comprises at least metal materials in a binding resin, wherein the toner is measured by a stand-alone type flow tester, and has a softening temperature of 65˜77.5° C., a flow beginning temperature of 100˜120° C., a melt temperature by a ½ method is 145˜195° C., and an average length of a short axis of a primary particle of the metal materials is 0.01˜0.4 μm.