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:
Jun. 15, 2010
Filed:
Jan. 24, 2008
Kazumichi Nakahama, Tokyo, JP;
Yukio Hanyu, Isehara, JP;
Takayuki Teshima, Yokohama, JP;
Akira Kuriyama, Atsugi, JP;
Toshihiko Hiaki, Tokyo, JP;
Kiwamu Sue, Tokyo, JP;
Hayato Hattori, Tokyo, JP;
Hironori Yamamoto, Tokyo, JP;
Kazumichi Nakahama, Tokyo, JP;
Yukio Hanyu, Isehara, JP;
Takayuki Teshima, Yokohama, JP;
Akira Kuriyama, Atsugi, JP;
Toshihiko Hiaki, Tokyo, JP;
Kiwamu Sue, Tokyo, JP;
Hayato Hattori, Tokyo, JP;
Hironori Yamamoto, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a method for producing a pigment, in particular, a metal phthalocyanine, in high yield and in a green process. The method has (1) a step of obtaining a solution mixture by mixing at least one type of compound serving as a raw material for a pigment with a solvent, and (2) a step of obtaining the pigment by reacting the compound while holding the solution mixture at not less than a temperature where a subcritical state or a supercritical state of the solvent occurs.