Patents by Inventor Masayuki Higashida

Masayuki Higashida 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).

  • Photocatalytic filter, photocatalytic filter device and method for manufacturing photocatalytic filter
    Patent number: 6878277
    Abstract: Disclosed is a photocatalytic filter which can fully secure a space of gaps to constitute a flow path for flowing a fluid to be disposed of and which has gaps structured for easily trapping an organic substance in the fluid when the fluid is brought into contact with a photocatalyst layer.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: April 12, 2005
    Assignees: Hoya Candeo Optronics Corporation, Hoya Corporation
    Inventors: Masayuki Higashida, Yoshikazu Nishii, Kazuya Uchida
  • Photocatalytic filter, photocatalytic filter device and method for manufacturing photocatalytic filter
    Publication number: 20020195381
    Abstract: Disclosed is a photocatalytic filter which can fully secure a space of gaps to constitute a flow path for flowing a fluid to be disposed of and which has gaps structured for easily trapping an organic substance in the fluid when the fluid is brought into contact with a photocatalyst layer.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 26, 2002
    Inventors: Masayuki Higashida, Yoshikazu Nishii, Kazuya Uchida
  • Glass material for carrying a photocatalyst, filter device using the same and light irradiating method
    Patent number: 6468428
    Abstract: A photocatalyst is carried on a surface of a light guiding body for guiding light needed to activate the photocatalyst in such a manner the light guided by the light guiding body irradiates directly from the surface of the light guiding body the photocatalyst.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: October 22, 2002
    Assignee: Hoya Corporation
    Inventors: Yoshikazu Nishii, Nobuhiro Maeda, Shin-ichi Ogawa, Yoichi Hachitani, Masayuki Higashida, Itaru Watanabe
  • Photocatalytic filter
    Publication number: 20020081246
    Abstract: A filter material in which protrusions are formed on the surface of a fiber base material by combining the filter base material and particles for forming protrusions having at least a part covered by a photocatalyst or a material containing a photocatalyst is disclosed. A gas treatment apparatus in which a gas treatment filter made of a filter material in which a photocatalyst having a refractive index higher than that of a filter base material is carried on the surface of the filter base material is installed in atmosphere to be treated and ultraviolet rays introduced into the light guiding member are leaked from the photocatalyst, thereby treating gas by the photocatalytic reaction.
    Type: Application
    Filed: January 3, 2002
    Publication date: June 27, 2002
    Applicant: Hoya Corporation
    Inventors: Shougo Tsukada, Itaru Watanabe, Youji Touma, Souji Arai, Shinichi Ogawa, Masayuki Higashida, Yoshikazu Nishii