Patents by Inventor Masami KATSURAGAWA

Masami KATSURAGAWA 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: 9829771
    Abstract: The present invention provides a housing for use in an underwater video camera which does not require a window comprised from a thick parallel flat plate and large scale pressure resistant sealing container and which can take 3D images in deep water or hadal zone. A housing for an underwater video camera formed from a glass hollow sphere for housing an imaging video camera including filling a roughly spherical segmental shape correction lens to a spherical segment enclosed by a cutting plane parallel to a lens surface of an imaging lens of the imaging video camera housed inside the glass hollow sphere, the cutting plane being a flat surface facing the lens surface and an inner surface of a spherical crown of the glass hollow sphere cut out using the cutting plane.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 28, 2017
    Assignees: Okamoto Glass Co., Ltd., Pearl Giken Co., Ltd.
    Inventors: Ariho Ueno, Daisuke Kojima, Masami Katsuragawa
  • Publication number: 20150138336
    Abstract: The present invention provides a housing for use in an underwater video camera which does not require a window comprised from a thick parallel flat plate and large scale pressure resistant sealing container and which can take 3D images in deep water or hadal zone. A housing for an underwater video camera formed from a glass hollow sphere for housing an imaging video camera including filling a roughly spherical segmental shape correction lens to a spherical segment enclosed by a cutting plane parallel to a lens surface of an imaging lens of the imaging video camera housed inside the glass hollow sphere, the cutting plane being a flat surface facing the lens surface and an inner surface of a spherical crown of the glass hollow sphere cut out using the cutting plane.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 21, 2015
    Inventors: Ariho UENO, Daisuke KOJIMA, Masami KATSURAGAWA