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. 17, 2018
Filed:
Apr. 22, 2015
Mitsubishi Pencil Company, Limited, Tokyo, JP;
Huyen Nguyen Thi Thanh, Fujioka, JP;
Tatsuya Murata, Fujioka, JP;
Motohiro Kasai, Fujioka, JP;
Katsunori Kitazawa, Fujioka, JP;
Masaaki Matsumoto, Fujioka, JP;
Kiyoshi Fujisawa, Fujioka, JP;
Kiyohiko Kobayashi, Fujioka, JP;
Yumi Morooka, Fujioka, JP;
MITSUBISHI PENCIL COMPANY, LIMITED, Shinagawa-Ku, Tokyo, JP;
Abstract
Provided is a solid drawing material containing at least a resin, waxes, a pigment and an extender, wherein it further contains at least one selected from dibasic acids having 12 to 30 carbon atoms and derivatives thereof, and the resin is at least one selected from rosin and modified products thereof, terpene resins and modified products thereof, petroleum resins, maleic acid resins and derivatives thereof, coumarone.indene resins and derivatives thereof, and isoprene base resins. The solid drawing material can draw smoothly, darkly and finely pictures not only on smooth and non-absorbing surfaces of art paper, coated paper, milk packs, plastics such as PET, metal, glass, white boards, and the like, but also on eyebrows, lips, skins and the like as well as ordinary papers such as wood free paper, drawing paper and copier paper and which can readily be erased from the non-absorbing surfaces.