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:
Oct. 07, 2014
Filed:
Mar. 24, 2010
Muneyoshi Sakamoto, Hiroshima-ken, JP;
Eiichi Kurita, Hiroshima-ken, JP;
Hiromitsu Misawa, Hiroshima-ken, JP;
Muneyoshi Sakamoto, Hiroshima-ken, JP;
Eiichi Kurita, Hiroshima-ken, JP;
Hiromitsu Misawa, Hiroshima-ken, JP;
Toda Kogyo Corporation, Otake-shi, Hiroshima-ken, JP;
Abstract
The present invention relates to magnetic composite particles comprising at least magnetic fine particles and a bio-based polymer, wherein the magnetic composite particles have an average particle diameter of 10 to 100 μm, and a content of the magnetic fine particles in the magnetic composite particles is 50 to 99.9% by weight; a magnetic carrier; and a developer. The magnetic composite particles, magnetic carrier and developer according to the present invention are effective for reduction of environmental burden such as saving of underground sources and prevention of global warming, have a high safety for human bodies and a high durability, and are capable of forming developed images with a high quality.