Patents by Inventor Keiichi Maeshima

Keiichi Maeshima 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).

  • Plastic optical fiber and plastic optical fiber code
    Patent number: 8503853
    Abstract: A plastic optical fiber comprising a core and a cladding, wherein the cladding comprises at least one layer, and the cladding comprises a copolymer which comprises 10 to 35% by weight of ethylene, 45 to 69% by weight of tetrafluoroethylene, 20 to 45% by weight of hexafluoropropylene, and 0.01 to 10% by weight of a fluorovinyl compound represented by Formula (1): CH2?CX1(CF2)nX2 (wherein X1 represents a fluorine atom or a hydrogen atom, X2 represents a fluorine atom, a hydrogen atom, or a hydrocarbon group, and n represents an integer from 1 to 10) as a copolymer component.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 6, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Hironobu Maeda, Keiichi Maeshima, Shinji Sato, Yoshiyuki Kiriyama, Hidekazu Kunieda
  • PLASTIC OPTICAL FIBER AND PLASTIC OPTICAL FIBER CODE
    Publication number: 20120020637
    Abstract: A plastic optical fiber comprising a core and a cladding, wherein the cladding comprises at least one layer, and the cladding comprises a copolymer which comprises 10 to 35% by weight of ethylene, 45 to 69% by weight of tetrafluoroethylene, 20 to 45% by weight of hexafluoropropylene, and 0.01 to 10% by weight of a fluorovinyl compound represented by Formula (1): CH2?CX1(CF2)nX2 (wherein X1 represents a fluorine atom or a hydrogen atom, X2 represents a fluorine atom, a hydrogen atom, or a hydrocarbon group, and n represents an integer from 1 to 10) as a copolymer component.
    Type: Application
    Filed: March 17, 2010
    Publication date: January 26, 2012
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hironobu Maeda, Keiichi Maeshima, Shinji Sato, Yoshiyuki Kiriyama, Hidekazu Kunieda