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. 04, 2016
Filed:
Sep. 30, 2010
Shin-ichi Ohkoshi, Tokyo, JP;
Shunsuke Sakurai, Tokyo, JP;
Asuka Namai, Tokyo, JP;
Sayaka Umeda, Tokyo, JP;
Hiroshi Hachiya, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Takashi Gotoh, Tokyo, JP;
Shin-ichi Ohkoshi, Tokyo, JP;
Shunsuke Sakurai, Tokyo, JP;
Asuka Namai, Tokyo, JP;
Sayaka Umeda, Tokyo, JP;
Hiroshi Hachiya, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Takashi Gotoh, Tokyo, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
DOWA ELECTRONICS MATERIALS CO., LTD., Tokyo, JP;
Abstract
To provide a method for improving a coercive force of epsilon-type iron oxide particles, and an epsilon-type iron oxide. Specifically, to provide a method for improving the coercive force of an epsilon-type iron oxide comprising: substituting Fe-site of the epsilon-type iron oxide with other element, while not substituting Fe of D-site in the epsilon-type iron oxide with other element, and the epsilon type iron oxide.