Patents by Inventor Huyen Nguyen Thi Thanh

Huyen Nguyen Thi Thanh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10023756
    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.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: July 17, 2018
    Assignee: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventors: Huyen Nguyen Thi Thanh, Tatsuya Murata, Motohiro Kasai, Katsunori Kitazawa, Masaaki Matsumoto, Kiyoshi Fujisawa, Kiyohiko Kobayashi, Yumi Morooka
  • Publication number: 20170051173
    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.
    Type: Application
    Filed: April 22, 2015
    Publication date: February 23, 2017
    Applicant: Mitsubishi Pencil Company, Limited
    Inventors: Huyen Nguyen Thi Thanh, Tatsuya Murata, Motohiro Kasai, Katsunori Kitazawa, Masaaki Matsumoto, Kiyoshi Fujisawa, Kiyohiko Kobayashi, Yumi Morooka