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:
Mar. 16, 2004
Filed:
Aug. 15, 2002
Applicant:
Inventors:
Isao Hashimoto, Shizuoka, JP;
Noboru Tsuda, Shizuoka, JP;
Hiroshi Ohsawa, Shizuoka, JP;
Tomonori Okazaki, Shizuoka, JP;
Manabu Shiga, Shizuoka, JP;
Kohei Ohtsuki, Shizuoka, JP;
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B 3/522 ; C09B 4/100 ; G03G 9/09 ; C09D 1/102 ; G02B 5/22 ;
U.S. Cl.
CPC ...
C09B 3/522 ; C09B 4/100 ; G03G 9/09 ; C09D 1/102 ; G02B 5/22 ;
Abstract
The present invention provides Pigment Yellow 180 having an excellent transparency produced by using a fine slurry of 5-acetoacetylamino-benzimidazolone as a coupling component when Pigment Yellow 180 is produced by coupling reaction of 5-acetoacetylamino-benzimidazolone and diazo component obtained by diazotization of 1,2-bis(2-aminophenoxy)ethane.