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:
Aug. 14, 2007
Filed:
Jun. 18, 2004
Osamu Shiromaru, Tokyo, JP;
Yusaku Ide, Tokyo, JP;
Toshio Oshiba, Tokyo, JP;
Takuya Kotani, Tokyo, JP;
Osamu Shiromaru, Tokyo, JP;
Yusaku Ide, Tokyo, JP;
Toshio Oshiba, Tokyo, JP;
Takuya Kotani, Tokyo, JP;
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Abstract
A process for the production of a β type copper phthalocyanine pigment, comprising dry-milling a crude copper phthalocyanine having a purity of 97 to 100% and a primary crystal diameter of 0.5 to 100 μm at a temperature of 180 to 50° C., to prepare an α/β mixed crystal type copper phthalocyanine having an α ratio of 5 to 35%, and treating the dry-milled product with a water-miscible organic solvent, MePc—(SONRRRR).  (3)
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile