Patents by Inventor Masanori MARUKAWA

Masanori MARUKAWA 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).

  • Curable composition for sealing optical semiconductor
    Patent number: 9685597
    Abstract: A curable composition according to the present invention for sealing optical semiconductor includes components (A), (B), and (C). Another curable composition according to the present invention for sealing optical semiconductor further includes a component (D) in addition to the components (A), (B) and (C). The component (A) is a compound containing at least one functional group selected from the group consisting of epoxy groups, oxetanyl groups, vinyl ether groups, and (meth)acryloyl groups. The component (B) is a cycloaliphatic epoxy compound. The component (C) is a curing catalyst including a cationic component and an anionic component and generating an acid upon application of light or heat, where the cationic component contains an aromatic ring, and the anionic component contains a central element selected from boron and phosphorus. The component (D) is conductive fiber-bearing particles each including a particulate substance and a fibrous conductive substance lying on or over the particulate substance.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 20, 2017
    Assignee: DAICEL CORPORATION
    Inventors: Masanori Marukawa, Tomoya Egawa, Akihiro Shibamoto
  • CURABLE COMPOSITION FOR SEALING OPTICAL SEMICONDUCTOR
    Publication number: 20160126431
    Abstract: A curable composition according to the present invention for sealing optical semiconductor includes components (A), (B), and (C). Another curable composition according to the present invention for sealing optical semiconductor further includes a component (D) in addition to the components (A), (B) and (C). The component (A) is a compound containing at least one functional group selected from the group consisting of epoxy groups, oxetanyl groups, vinyl ether groups, and (meth)acryloyl groups. The component (B) is a cycloaliphatic epoxy compound. The component (C) is a curing catalyst including a cationic component and an anionic component and generating an acid upon application of light or heat, where the cationic component contains an aromatic ring, and the anionic component contains a central element selected from boron and phosphorus. The component (D) is conductive fiber-bearing particles each including a particulate substance and a fibrous conductive substance lying on or over the particulate substance.
    Type: Application
    Filed: May 21, 2014
    Publication date: May 5, 2016
    Applicant: DAICEL CORPORATION
    Inventors: Masanori MARUKAWA, Tomoya EGAWA, Akihiro SHIBAMOTO