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:
Jul. 04, 2006
Filed:
Apr. 03, 2001
Shuji Ichikawa, Tokyo, JP;
Shuji Ichikawa, Tokyo, JP;
Mitsubishi Pencil Co., Ltd., Tokyo, JP;
Abstract
An oil-based ballpoint pen ink composition comprising a) a colorant, b) a solvent containing one or more solvents having the following chemical structural formula (1) where R, Rand Rare each independently H or CH, as the main solvent, and c) a resin which is soluble in the solvent, wherein the ink viscosity is 700–8000 meals mPa·s and preferably at least 800 mPa·s and less than 6000 mPa·s at 25° C. According to one mode, the main solvent is a mixed solvent comprising this solvent with propyleneglycol monomethyl ether.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile