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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.:

US 6528645 B1

PDFFull Text
Date of Patent:
Mar. 04, 2003

Filed:

Sep. 29, 2000

Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material and production method of the same

Applicant:
Inventors:

Kazunari Hamasaki, Osaka, JP;

Yukimasa Watanabe, Osaka, JP;

Hirofumi Kawaguchi, Osaka, JP;

Mitsuo Ihara, Osaka, JP;

Susumu Hiroshima, Osaka, JP;

Daisuke Kuboshima, Osaka, JP;

Assignee:

Kyocera Mita Corporation, Osaka, JP;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Richard L Raymond

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract

The present invention relates to a titanyl phthalocyanine crystal having excellent storage stability of coating solution, to satisfy that (a) the crystal does not have a peak of a change in temperature except for a peak associated with evaporation of adsorbed water in differential scanning calorimetry or that (b) the crystal recovered after dipping in an organic solvent for 24 hours at least a maximum peak at a Bragg angle 2&thgr;±0.2°=27.2° and has no peak at 26.2° in a CuK &agr; characteristic X-ray diffraction spectrum, and a method of producing the same; and an electrophotosensitive material using the above crystal, and a method of producing the same.

Find Patent Forward Citations

Hamasaki, Kazunari. (2003). Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material and production method of the same (U.S. Patent No. 6528645). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6528645

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