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:
Oct. 11, 2005
Filed:
Jun. 27, 2001
Applicant:
Hideyuki Ikoma, Yokohama, JP;
Inventor:
Hideyuki Ikoma, Yokohama, JP;
Assignee:
Mitsubishi Pencil Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D011/18 ; C09B067/50 ;
U.S. Cl.
CPC ...
Abstract
Provided are a navy blue water based ink composition for a ballpoint pen comprising a colorant, water and a dispersant, wherein at least cobalt phthalocyanine blue is used as the colorant, and a pH of the ink falls in a range of 7 to 10, and a ballpoint pen occulding the water based ink composition. Cobalt phthalocyanine blue has preferably a diameter of 500 nm or more and a content of 0.05 to 30% by weight based on the total amount of the ink composition.
Ikoma, Hideyuki. (2005). Ink composition for water-based ball pen (U.S. Patent No. 6953502). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6953502
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile