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:
Aug. 28, 2001
Filed:
Mar. 17, 1999
Applicant:
Inventors:
Koichi Osumi, Yokohama, JP;
Yoshifumi Hattori, Yamato, JP;
Yoshihisa Takizawa, Machida, JP;
Shinya Mishina, Kawasaki, JP;
Mikio Sanada, Yokohama, JP;
Hisashi Teraoka, Kawasaki, JP;
Yuko Yakushigawa, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 1/102 ;
U.S. Cl.
CPC ...
C09D 1/102 ;
Abstract
Provided is a black ink capable of mitigating the dependency on image quality of recording media and giving a high quality image stably, which comprises at least one salt selected from the group consisting of (M1),SO,, CH,COO(M1), Ph_COO(M1), (M1)NO,, (M1)Cl, (M1)Br, (M1)I, (M1),SO,and (M1),CO,, where M1 is an alkali metal, ammonium or organo-ammonium and Ph is a phenyl group, and a self dispersible carbon black.