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. 18, 2014
Filed:
Aug. 19, 2011
Koichi Sakata, Shizuoka, JP;
Shigenori Yaguchi, Shizuoka, JP;
Toyoshi Sawada, Kanagawa, JP;
Kimitoshi Yamaguchi, Shizuoka, JP;
Hitoshi Iwatsuki, Shizuoka, JP;
Hiroshi Tohmatsu, Shizuoka, JP;
Hiroyuki Kishida, Shizuoka, JP;
Toyoaki Tano, Shizuoka, JP;
Mariko Takii, Shizuoka, JP;
Koichi Sakata, Shizuoka, JP;
Shigenori Yaguchi, Shizuoka, JP;
Toyoshi Sawada, Kanagawa, JP;
Kimitoshi Yamaguchi, Shizuoka, JP;
Hitoshi Iwatsuki, Shizuoka, JP;
Hiroshi Tohmatsu, Shizuoka, JP;
Hiroyuki Kishida, Shizuoka, JP;
Toyoaki Tano, Shizuoka, JP;
Mariko Takii, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A carrier including a magnetic core particle and a resin layer covering a surface of the magnetic core particle. The magnetic core particle is a ferrite particle including strontium in an amount of 0.005 to 3% by mass, measured by fluorescent X-ray spectroscopy. The resin layer comprises a resin obtained by heating a copolymer comprising a silicon-containing unit A and another silicon-containing specific unit B.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile