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:
Jul. 29, 2008
Filed:
Jul. 14, 2004
Tadao Takikawa, Kyoto, JP;
Toshihiko Kinsho, Kyoto, JP;
Hidetoshi Noda, Kyoto, JP;
Shuhei Yahiro, Kyoto, JP;
Yutaka Yoshida, Kyoto, JP;
Tomoyuki Ichikawa, Numazu, JP;
Satoshi Mochizuki, Numazu, JP;
Yasuaki Iwamoto, Numazu, JP;
Hideki Sugiura, Numazu, JP;
Tadao Takikawa, Kyoto, JP;
Toshihiko Kinsho, Kyoto, JP;
Hidetoshi Noda, Kyoto, JP;
Shuhei Yahiro, Kyoto, JP;
Yutaka Yoshida, Kyoto, JP;
Tomoyuki Ichikawa, Numazu, JP;
Satoshi Mochizuki, Numazu, JP;
Yasuaki Iwamoto, Numazu, JP;
Hideki Sugiura, Numazu, JP;
Sanyo Chemical Industries, Ltd, Kyoto, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Provided is a resin particle comprising a resin (a) and a filler (b) contained in the particle; the particle has a volume average particle diameter of from 0.1 to 300 μm and a shape factor of from 110 to 300; the particle has an outer shell layer (S) comprising at least a portion of the filler (b); the layer (S) is at least 0.01 μm thick and has a thickness that is ½ or less of the maximum inscribed circle radius of the particle cross section. When used as a toner resin, it is excellent in blade cleaning properties and wide in the fixation temperature range; when employed as a paint additive or a cosmetics additive, it is excellent in masking properties; when used as paper coating additive, it is excellent in ink retention; when utilized as an abrasive, it is excellent in abrasion.