Patents by Inventor Yasuo Naganuma

Yasuo Naganuma 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: 9230170
    Abstract: A plant species identification apparatus for identifying plant species is disclosed. A reference data storage part stores reference spectral data which indicate a reflectance spectral feature classified by area segments including a sunlit portion and a shaded portion in addition to the plant species. A data input part acquires hyperspectral data to be a target. A determination part specifies the reflectance spectral feature of a pixel for each of pixels of the hyperspectral data from the reference data storage part and to determine the plant species of the pixels based on a classification of the reference spectral data.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 5, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yasuo Naganuma, Katsuji Ebisu
  • Patent number: 8846563
    Abstract: The present invention relates to apatite that includes metal atoms having a photocatalytic function and other metal atoms, and the metal atoms having a photocatalytic function include metal atoms that absorb energy corresponding to light energy of visible light. By applying the apatite as a base material of various products to be arranged indoors, the photocatalytic function can be exhibited indoors as well.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 30, 2014
    Assignees: Fujitsu Limited, The University of Tokyo
    Inventors: Toshiya Watanabe, Masato Wakamura, Yasuo Naganuma
  • Publication number: 20140093138
    Abstract: A plant species identification apparatus for identifying plant species is disclosed. A reference data storage part stores reference spectral data which indicate a reflectance spectral feature classified by area segments including a sunlit portion and a shaded portion in addition to the plant species. A data input part acquires hyperspectral data to be a target. A determination part specifies the reflectance spectral feature of a pixel for each of pixels of the hyperspectral data from the reference data storage part and to determine the plant species of the pixels based on a classification of the reference spectral data.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Yasuo NAGANUMA, Katsuji EBISU
  • Publication number: 20110263414
    Abstract: The present invention relates to apatite that includes metal atoms having a photocatalytic function and other metal atoms, and the metal atoms having a photocatalytic function include metal atoms that absorb energy corresponding to light energy of visible light. By applying the apatite as a base material of various products to be arranged indoors, the photocatalytic function can be exhibited indoors as well.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 27, 2011
    Applicants: THE UNIVERSITY OF TOKYO, FUJITSU LIMITED
    Inventors: Toshiya Watanabe, Masato Wakamura, Yasuo Naganuma
  • Patent number: 7683005
    Abstract: A photocatalyst having superior properties of adsorption and decomposition with respect to various substances is provided. This photocatalyst comprises a porous body coated with titanium apatite. The porous body is preferably diatomaceous earth. The photocatalyst can be formed by co-precipitation or a sol-gel method.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: March 23, 2010
    Assignee: Fujitsu Limited
    Inventors: Kazuaki Kurihara, Masato Wakamura, Yasuo Naganuma, Noriyasu Aso
  • Patent number: 7635659
    Abstract: The photocatalytic apatite composition and its production method are disclosed. The photocatalytic apatite comprises a photocatalytic apatite having incorporated into the apatite crystal structure thereof a metal oxide having a photocatalytic action, such as titanium oxide, and a metal ion having an antimicrobial property, such as a silver ion or a copper ion. The photocatalyst apatite composition is capable of maintaining excellent decomposition and adsorption properties for various organic materials such as VOCs or specific adsorbing substances such as a virus for a long time and, at the same time, expressing an excellent antimicrobial property in a dark place as well as under daylight.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: December 22, 2009
    Assignee: Fujitsu Limited
    Inventors: Yasuo Naganuma, Masato Wakamura
  • Patent number: 7579296
    Abstract: The present invention provides a broad band light absorbing photocatalyst which has a high absorptivity not only for visible light but also, in particular, for ultraviolet light, exhibits photocatalytic activity in response to a broad band light over a long period, has a high adsorptivity for objects to be decomposed, and can exhibit oxidative decomposition effect, antibacterial effect, antifouling effect, etc. The broad band light absorbing photocatalyst of the present invention includes an apatite having photocatalytic activity, a visible light absorbing metal atom and an ultraviolet light absorbing metal atom and the ultraviolet light absorbing metal atom is at least one of tungsten (W) and vanadium (V).
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 25, 2009
    Assignee: Fujitsu Limited
    Inventors: Yasuo Naganuma, Masato Wakamura
  • Publication number: 20070232487
    Abstract: The photocatalytic apatite composition and its production method are disclosed. The photocatalytic apatite comprises a photocatalytic apatite having incorporated into the apatite crystal structure thereof a metal oxide having a photocatalytic action, such as titanium oxide, and a metal ion having an antimicrobial property, such as a silver ion or a copper ion. The photocatalyst apatite composition is capable of maintaining excellent decomposition and adsorption properties for various organic materials such as VOCs or specific adsorbing substances such as a virus for a long time and, at the same time, expressing an excellent antimicrobial property in a dark place as well as under daylight.
    Type: Application
    Filed: August 29, 2006
    Publication date: October 4, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Yasuo Naganuma, Masato Wakamura
  • Publication number: 20070215006
    Abstract: The present invention provides a photocatalyst which is excellent in absorbability to organic materials and the like and is inexpensive, a method for manufacturing the photocatalyst at low cost with simple procedures, and molded articles using the photocatalyst. The photocatalyst of the present invention contains at least a porous body containing a calcium hydroxy apatite having photocatalytic activity. The method for manufacturing a photocatalyst of the present invention is a method for manufacturing the photocatalyst of the present invention, and includes doping a metal atom necessary for obtaining photocatalytic activity in an apatite contained in a bone. The molded articles are formed by using the photocatalyst of the present invention.
    Type: Application
    Filed: August 29, 2006
    Publication date: September 20, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Yasuo Naganuma, Masato Wakamura
  • Publication number: 20070149389
    Abstract: A photocatalyst having superior properties of adsorption and decomposition with respect to various substances is provided. This photocatalyst comprises a porous body coated with titanium apatite. The porous body is preferably diatomaceous earth. The photocatalyst can be formed by co-precipitation or a sol-gel method.
    Type: Application
    Filed: March 28, 2006
    Publication date: June 28, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Kazuaki Kurihara, Masato Wakamura, Yasuo Naganuma, Noriyasu Aso
  • Publication number: 20070051668
    Abstract: The present invention relates to apatite that includes metal atoms having a photocatalytic function and other metal atoms, and the metal atoms having a photocatalytic function include metal atoms that absorb energy corresponding to light energy of visible light. By applying the apatite as a base material of various products to be arranged indoors, the photocatalytic function can be exhibited indoors as well.
    Type: Application
    Filed: November 9, 2006
    Publication date: March 8, 2007
    Applicants: FUJITSU LIMITED, THE UNIVERSITY OF TOKYO
    Inventors: Toshiya Watanabe, Masato Wakamura, Yasuo Naganuma
  • Publication number: 20060199729
    Abstract: The present invention provides a broad band light absorbing photocatalyst which has a high absorptivity not only for visible light but also, in particular, for ultraviolet light, exhibits photocatalytic activity in response to a broad band light over a long period, has a high adsorptivity for objects to be decomposed, and can exhibit oxidative decomposition effect, antibacterial effect, antifouling effect, etc. The broad band light absorbing photocatalyst of the present invention includes an apatite having photocatalytic activity, a visible light absorbing metal atom and an ultraviolet light absorbing metal atom and the ultraviolet light absorbing metal atom is at least one of tungsten (W) and vanadium (V).
    Type: Application
    Filed: June 29, 2005
    Publication date: September 7, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Yasuo Naganuma, Masato Wakamura
  • Patent number: 6936349
    Abstract: A housing made of a magnesium material is colored by a non-painting process. In this process, an anode oxide film is grown on the surface of the housing by subjecting the housing to anodization. The anode oxide film is colored without a paint being applied to the surface of the film.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: August 30, 2005
    Assignee: Fujitsu Limited
    Inventors: Yasuo Naganuma, Masami Tsutsumi
  • Publication number: 20040040854
    Abstract: An oxide film is formed on an object made of a magnesium material. For the film formation, the object is immersed into an electrolyte that contains insoluble particles and alkali metal hydroxide. In the electrolyte, the object is anodized to be coated with an oxide film. In the presence of the insoluble particles dispersed in the electrolyte, the oxide film takes in nearby particles as it is growing on the object during the anodizing process.
    Type: Application
    Filed: July 31, 2003
    Publication date: March 4, 2004
    Applicant: FUJITSU LIMITED
    Inventor: Yasuo Naganuma
  • Publication number: 20030052012
    Abstract: A housing made of a magnesium material is colored by a non-painting process. In this process, an anode oxide film is grown on the surface of the housing by subjecting the housing to anodization. The anode oxide film is colored without a paint being applied to the surface of the film.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 20, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Yasuo Naganuma, Masami Tsutsumi
  • Patent number: 6160081
    Abstract: The invention relates to a photosensitive polyimide resin composition comprising (A) a polyamic acid having, in its main chain, repeating units formed from a polycondensation product of at least one tetracarboxylic acid or tetracarboxylic anhydride thereof with at least one diamine compound, and having actinic ray-sensitive functional groups at both terminals thereof; (B) a photosensitive auxiliary having a photopolymerizable functional group; (C) a photopolymerization initiator; and (D) a solvent, wherein 1 the polyamic acid is such that when the repeating unit represented by the formula (1) is defined as a unit molecular weight, a unit molecular weight per carboxyl group (unit molecular weight/COOH) falls within a range of from 200 to 300, and 2 the photosensitive resin composition permits the formation of a polyimide film having a residual stress of 40 MPa or lower and a coefficient of thermal expansion of 30 ppm/.degree. C.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: December 12, 2000
    Assignees: Nippon Zeon Co., Ltd., Fujitsu Limited
    Inventors: Akira Tanaka, Kei Sakamoto, Kenichi Ito, Yasuhiro Yoneda, Kishio Yokouchi, Yasuo Naganuma