Patents by Inventor Akiko Nakahashi

Akiko Nakahashi 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: 8304470
    Abstract: The present invention relates to a resin composition for optical components, which is an ultraviolet-curable transparent resin composition used as a material for an optical component, in which the resin composition includes (A) an epoxy resin having two or more epoxy groups in one molecule thereof, (B) an oxetane compound having one or more oxetanyl groups in one molecule thereof and (C) a photo-acid generator, and in which the component (C) is contained in an amount of 0.01 to 2.0 parts by weight based on 100 parts by weight of a total amount of the components (A) and (B). The present invention also relates to an optical component obtained by using the resin composition for optical components, and a production method thereof.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: November 6, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Hiroshi Noro, Akiko Nakahashi, Hisataka Ito
  • Publication number: 20100292358
    Abstract: The present invention relates to a resin composition for optical components, the resin composition being an ultraviolet-curable transparent resin composition to be used as a material for an optical component, in which the resin component includes the following component (A) as a main component and the following component (B) being a photo-cationic polymerization initiator: (A) an epoxy resin having two or more epoxy groups in one molecule thereof; and (B) an onium salt containing a hexafluorophosphate ion as an anion component.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Hiroshi NORO, Akiko NAKAHASHI, Hisataka ITO
  • Publication number: 20090311630
    Abstract: The present invention relates to a process for producing an optical component, the process including: disposing a transparent stamp tool on a substrate or an imaging element through a transparent ultraviolet-curable resin composition layer; and irradiating the resin composition layer with an ultraviolet ray through the transparent stamp tool to thereby cure the resin composition layer, in which a resin composition contained in the resin composition layer contains a thermosetting resin as a main component and a photo-acid generator, and the ultraviolet ray passing through the transparent stamp tool is an ultraviolet ray having a wavelength of 320 nm or more.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 17, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Hiroshi NORO, Akiko NAKAHASHI, Hisataka ITO
  • Publication number: 20090295003
    Abstract: The present invention relates to a resin composition for optical components, which is an ultraviolet-curable transparent resin composition used as a material for an optical component, in which the resin composition includes (A) an epoxy resin having two or more epoxy groups in one molecule thereof, (B) an oxetane compound having one or more oxetanyl groups in one molecule thereof and (C) a photo-acid generator, and in which the component (C) is contained in an amount of 0.01 to 2.0 parts by weight based on 100 parts by weight of a total amount of the components (A) and (B). The present invention also relates to an optical component obtained by using the resin composition for optical components, and a production method thereof.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Applicant: NITTO DENKO DENKO CORPORATION
    Inventors: Hiroshi NORO, Akiko NAKAHASHI, Hisataka ITO