Patents by Inventor Takehisa Dewa

Takehisa Dewa 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).

  • PHOTOCHEMICAL REACTION DEVICE, METHOD FOR MANUFACTURING SAME, AND PHOTOCHEMICAL REACTION METHOD
    Publication number: 20160251216
    Abstract: To provide a photochemical reactor that allows a photochemical reaction to proceed in the atmospheric air. Used is porous glass that is permeable to light in such a wavelength region as to be absorbable by photosensitizer. The porous glass has pores and includes the photosensitizer, electron carrier, and reduction reaction catalyst, each serving as a reaction-involved substance and being disposed in the pores. This allows the interior of the pores of the porous glass to serve as a reaction site for the photochemical reaction and allows the photochemical reaction to proceed in the atmospheric air.
    Type: Application
    Filed: July 30, 2014
    Publication date: September 1, 2016
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Masaharu KONDO, Tomoyasu NOJI, Takehisa DEWA, Tetsuro JIN
  • Polycationized phospholipid derivatives
    Patent number: 8143413
    Abstract: The present invention provides novel phospholipid derivatives. Furthermore, the present invention provides lipid membrane structures excellent in gene/nucleic acid introduction efficiency into a cell.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: March 27, 2012
    Assignees: Eisai R&D Management Co., Ltd., National University Corporation Nagoya Institute of Technology, Shizuoka Prefectural Universities Corporation
    Inventors: Takehisa Dewa, Tomohiro Asai, Mamoru Nango, Naoto Oku
  • POLYCATIONIZED PHOSPHOLIPID DERIVATIVES
    Publication number: 20100094020
    Abstract: The present invention provides novel phospholipid derivatives. Furthermore, the present invention provides lipid membrane structures excellent in gene/nucleic acid introduction efficiency into a cell.
    Type: Application
    Filed: August 28, 2009
    Publication date: April 15, 2010
    Applicants: Eisai R&D Management Co., Ltd., National University Corporation Nagoya Institute of Technology, SHIZUOKA PREFECTURAL UNIVERSITIES CORPORATION
    Inventors: Takehisa DEWA, Tomohiro Asai, Mamoru Nango, Naoto Oku
  • Porous organic/metallic composite
    Patent number: 6380127
    Abstract: A novel metal composite is provided which is useful as a catalyst or the like by the control of a structure of an apohost and the modification thereof and in which an organic apohost capable of forming a porous structure by a hydrogen bond is compounded with at least one type of transition metallic elements or compounds thereof.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: April 30, 2002
    Assignee: Japan Science and Technology Corporation
    Inventors: Yasuhiro Aoyama, Takehisa Dewa, Tomoya Sawaki