Patents by Inventor Takehiko Hirabara

Takehiko Hirabara 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: 10907284
    Abstract: A highly uniform nonwoven fabric has high air permeability while it has a small maximum pore diameter. The nonwoven fabric includes: ultra-fine fibers, wherein the ultra-fine fibers have an average fiber diameter of 0.80 ?m or less, the proportion of the number of the ultra-fine fibers having a fiber diameter of 2.00 ?m or more is 5.0% or less, and the nonwoven fabric has an apparent density of not less than 0.05 g/cm3 and not more than 0.15 g/cm3 and has a maximum pore diameter of 10.0 ?m or less.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: February 2, 2021
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Masashi Ito, Takaki Omasa, Shintaro Kataoka, Takehiko Hirabara
  • Patent number: 9950133
    Abstract: A heat and moisture exchanger includes: a heat and moisture exchanger material formed by coiling a strip-shaped porous body, the porous body having a plurality of slits formed therein that are arranged along the lengthwise direction, into a spirally-wound shape with the slits facing radially outwardly; and a housing that accommodates the heat and moisture exchanger material. Such a structure for an HME makes it possible to reduce pressure loss and improve moisture retention capabilities by means of a relatively simple structure, thereby allowing the inexpensive provision of an HME that lowers the burden on a patient.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 24, 2018
    Assignees: Toray Medical Co., Ltd., Toray Fine Chemicals Co., Ltd.
    Inventors: Tsuguaki Umehara, Hiroyuki Fukuda, Masato Mutoh, Takehiko Hirabara, Yusuke Shobu, Hideyuki Takeshige
  • Publication number: 20180066386
    Abstract: A highly uniform nonwoven fabric has high air permeability while it has a small maximum pore diameter. The nonwoven fabric includes: ultra-fine fibers, wherein the ultra-fine fibers have an average fiber diameter of 0.80 ?m or less, the proportion of the number of the ultra-fine fibers having a fiber diameter of 2.00 ?m or more is 5.0% or less, and the nonwoven fabric has an apparent density of not less than 0.05 g/cm3 and not more than 0.15 g/cm3 and has a maximum pore diameter of 10.0 ?m or less.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 8, 2018
    Inventors: Masashi Ito, Takaki Omasa, Shintaro Kataoka, Takehiko Hirabara
  • Publication number: 20170150954
    Abstract: A retractor for endoscopic surgery can be placed in a vicinity of a target organ in a body cavity, while reducing burdens on a patient. The retractor is a surgical retractor including a liquid-absorbing and swelling material, wherein the liquid-absorbing and swelling material is formed in a roll shape, the roll-shaped liquid-absorbing and swelling material absorbs liquid in a body cavity to swell and expand into a planar shape.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 1, 2017
    Inventors: Shintaro Kataoka, Takehiko Hirabara
  • Publication number: 20150053368
    Abstract: A heat and moisture exchanger includes: a heat and moisture exchanger material formed by coiling a strip-shaped porous body, the porous body having a plurality of slits formed therein that are arranged along the lengthwise direction, into a spirally-wound shape with the slits facing radially outwardly; and a housing that accommodates the heat and moisture exchanger material. Such a structure for an HME makes it possible to reduce pressure loss and improve moisture retention capabilities by means of a relatively simple structure, thereby allowing the inexpensive provision of an HME that lowers the burden on a patient.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 26, 2015
    Inventors: Tsuguaki Umehara, Hiroyuki Fukuda, Masato Mutoh, Takehiko Hirabara, Yusuke Shobu, Hideyuki Takeshige
  • Patent number: 7059665
    Abstract: A light-weight, highly rigid, high-strength environment-friendly fiber-reinforced plastic (hereinafter, CFRP) board having a surface quality that can endure long-term use suitable for use in automobiles and the like is provided. A method for making the same is also provided. The CFRP board includes a board member formed from a woven fabric as a reinforcing base material, the woven fabric including carbon fibers; and at least one of a gel coat and a paint provided on the board member, wherein the NSIC value of the surface of the CFRP board is 30% or more.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: June 13, 2006
    Assignee: Toray Industries, Inc.
    Inventors: Shoji Murai, Tomoyuki Shinoda, Takehiko Hirabara, Akihiko Kitano
  • Patent number: 6995099
    Abstract: The present invention is aimed at providing FRP formed by integrating a fiber reinforcing material and a non-woven fabric, and having excellent shaping ability, impact resistance after molding, and excellent reliability and low cost. The aim of the present invention is achieved by a complex fiber reinforcing material including a sheet-shaped fiber reinforcing material composed of reinforcing fibers, and a non-woven fabric laminated on at least one side of the fiber reinforcing material, wherein the fibers constituting the non-woven fabric pass through the fiber reinforcing material to integrate the non-woven fabric with the fiber reinforcing material.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: February 7, 2006
    Assignee: Toray Industries, Inc.
    Inventors: Akira Nishimura, Kiyoshi Homma, Ikuo Horibe, Takehiko Hirabara
  • Publication number: 20040185733
    Abstract: A light-weight, highly rigid, high-strength environment-friendly fiber-reforced plastic (hereinafter, CFRP) board having a surface quality that can endure long-term use suitable for use in automobiles and the like is provided. A method for making the same is also provided.
    Type: Application
    Filed: January 5, 2004
    Publication date: September 23, 2004
    Inventors: Shoji Murai, Tomoyuki Shinoda, Takehiko Hirabara, Akihiko Kitano