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:
Apr. 05, 1994
Filed:
Jul. 21, 1993
Applicant:
Inventors:
Masakatsu Nakatsuka, Kanagawa, JP;
Atsuo Otsuji, Kanagawa, JP;
Kiyoharu Hasegawa, Kanagawa, JP;
Kazuyoshi Kikkawa, Kanagawa, JP;
Akihiro Yamaguchi, Kanagawa, JP;
Assignee:
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549226 ;
Abstract
Disclosed are novel crystal of the fluoran compound represented by the formula (I) ##STR1## ,characterized by a specific X-ray diffraction diagram; preparation process thereof; and recording materials comprising the crystal.
Quick Actions:
Nakatsuka, Masakatsu. (1994). Process for preparation of a recording material comprising a novel (U.S. Patent No. 5300661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5300661
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