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:
Nov. 12, 2024
Filed:
Apr. 24, 2019
Kabushiki Kaisha Pilot Corporation, Tokyo, JP;
The Pilot Ink Company, Limited, Aichi, JP;
Katsuhisa Asada, Anjou, JP;
KABUSHIKI KAISHA PILOT CORPORATION, Tokyo, JP;
THE PILOT INK COMPANY, LIMITED, Aichi, JP;
Abstract
The present invention provides: a highly practical and safe oil-based ink composition for a writing board, said composition being capable of imparting high mark-erasability and having excellent resistance to drying up; and a marking pen incorporating the same. Specifically, the present invention provides: an oil-based ink composition for a writing board, said composition containing a pigment, an organic solvent, a resin, and at least one compound selected from compounds represented by general formula (1) or (2); and a marking pen obtained by incorporating the oil-based ink composition for a writing board. (In the formulae, R-Reach represent a C6-18 alkyl group or a C2-18 and O2-10 alkoxypolyglycol group.)