Patents by Inventor Naotoshi Miyahara

Naotoshi Miyahara 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).

  • Method for manufacturing fuel hose and ultraviolet crosslinking composition used therefor
    Patent number: 6808671
    Abstract: A method for manufacturing a fuel hose which can efficiently produce heat-resistant and flexible fuel hoses. The method for manufacturing a fuel hose forms a protector layer on an outer peripheral surface of a resinous inner layer, and includes the steps of extruding an ultraviolet crosslinking composition for a protector layer that contains the following components A to D, on the outer peripheral surface of the resinous inner layer; and subsequently, irradiating ultraviolet rays to polymerize the ultraviolet crosslinking composition, thus forming the protector layer: (A) ethylene-propylene-diene rubber; (B) acrylate-based monomer; (C) silica; and (D) photopolymerization initiator.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: October 26, 2004
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Kazutaka Katayama, Takehiko Taguchi, Naotoshi Miyahara
  • Method for manufacturing fuel hose and ultraviolet crosslinking composition used therefor
    Publication number: 20020043744
    Abstract: A method for manufacturing a fuel hose which can efficiently produce heat-resistant and flexible fuel hoses.
    Type: Application
    Filed: August 29, 2001
    Publication date: April 18, 2002
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Kazutaka Katayama, Takehiko Taguchi, Naotoshi Miyahara
  • Insulating tape or sheet
    Patent number: 5847322
    Abstract: An insulating tape or sheet comprising a polyester film layer and a polyolefin adhesive layer having a flexural modulus of 500-20000 kgf/cm.sup.2. The insulating tape or sheet of the present invention can provide an insulated wire having superior buckling resistance and is very low in cost.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: December 8, 1998
    Assignees: Tokai Rubber Industries, Ltd., Mitsubishi Cable Industries, Ltd.
    Inventors: Hirokazu Sakai, Takayuki Shimizu, Ryuzo Asano, Naotoshi Miyahara, Kiyoshi Furukawa, Masaaki Nagai, Hiromasa Honjo, Hiroyuki Kamibayashi
  • Insulating tape or sheet
    Patent number: 5591522
    Abstract: An insulating tape or sheet comprising a polyester film layer and a polyolefin adhesive layer having a flexural modulus of 500-20000 kgf/cm.sup.2. The insulating tape or sheet of the present invention can provide an insulated wire having superior buckling resistance and is very low in cost.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: January 7, 1997
    Assignees: Tokai Rubber Industries, Ltd., Mitsubishi Cable Industries, Ltd.
    Inventors: Hirokazu Sakai, Takayuki Shimizu, Ryuzo Asano, Naotoshi Miyahara, Kiyoshi Furukawa, Masaaki Nagai, Hiromasa Honjo, Hiroyuki Kamibayashi