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. 04, 1991
Filed:
Oct. 06, 1989
Applicant:
Inventors:
Shigeru Hayashida, Hitachi, JP;
Seiji Tai, Hitachi, JP;
Nobuyuki Hayashi, Hitachi, JP;
Yasushi Iwakabe, Hitachi, JP;
Noriyuki Kinjo, Hitachi, JP;
Shunichi Numata, Hitachi, JP;
Assignees:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C07D / ; G11B / ; B21M / ;
U.S. Cl.
CPC ...
540128 ;
Abstract
A metal naphthalocyanine derivative and process for producing said derivative which is represented by the following formula (I): ##STR1## wherein M represents germanium or tin; L and L' each independently represent a halogen, a hydroxyl group, an alkyl group, an alkoxy group or a siloxy group of the formula R.sub.1 R.sub.2 R.sub.3 SiO-- (wherein R.sub.1, R.sub.2 and R.sub.3 each independently represent a hydrogen atom, an alkyl group, an alkoxy group or an aryl group).