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:
Feb. 20, 2018
Filed:
Dec. 01, 2016
Applicant:
Mitsubishi Pencil Company, Limited, Tokyo, JP;
Inventors:
Hiroyuki Arai, Fujioka, JP;
Satoru Banzai, Fujioka, JP;
Assignee:
MITSUBISHI PENCIL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D 13/00 (2006.01); C08K 3/36 (2006.01); C09D 163/00 (2006.01);
U.S. Cl.
CPC ...
C09D 13/00 (2013.01); C09D 163/00 (2013.01);
Abstract
A pencil lead includes an organic-inorganic hybrid resin inside fine pores of a porous lead body. A colorant may also be included inside the fine pores. The organic-inorganic hybrid resin is preferably a silica-organic hybrid resin.