Patents by Inventor Shinichi Ooizumi

Shinichi Ooizumi 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 production of porous film, porous film, separator for non-aqueous electrolyte battery, and non-aqueous electrolyte battery using the separator
    Patent number: 9340653
    Abstract: The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 17, 2016
    Assignee: Nitto Denko Corporation
    Inventors: Shunsuke Noumi, Tomoaki Ichikawa, Shinichi Ooizumi, Yoshihiro Uetani, Masaki Ujihara
  • METHOD FOR PRODUCTION OF POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR
    Publication number: 20150267017
    Abstract: The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention.
    Type: Application
    Filed: June 2, 2015
    Publication date: September 24, 2015
    Inventors: Shunsuke NOUMI, Tomoaki ICHIKAWA, Shinichi OOIZUMI, Yoshihiro UETANI, Masaki UJIHARA
  • Method for production of porous film, porous film, separator for non-aqueous electrolyte battery, and non-aqueous electrolyte battery using the separator
    Patent number: 9077025
    Abstract: The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: July 7, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Shunsuke Noumi, Tomoaki Ichikawa, Shinichi Ooizumi, Yoshihiro Uetani, Masaki Ujihara
  • METHOD FOR PRODUCTION OF POROUS FILM, POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SEPARATOR
    Publication number: 20100227223
    Abstract: The method for producing a porous film of the present invention includes producing a stretched film by stretching a resin sheet containing at least polyolefin, and then irradiating the stretched film with a vacuum ultraviolet ray. The separator for a non-aqueous electrolyte battery of the present invention is composed of the porous film obtained by the production method of the present invention. The non-aqueous electrolyte battery of the present invention is provided with the separator for a non-aqueous electrolyte battery of the present invention.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 9, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shunsuke Noumi, Tomoaki Ichikawa, Shinichi Ooizumi, Yoshihiro Uetani, Masaki Ujihara
  • Process of producing porous films
    Publication number: 20040080068
    Abstract: A process of producing porous films having a high porosity and excellent air permeability, even though they have a small film thickness and a high strength, and a process of producing battery separators.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 29, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinichi Ooizumi, Kazushige Yamamoto, Tomoaki Ichikawa