Patents by Inventor Michiyo Abe

Michiyo Abe 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: 6794809
    Abstract: A display unit has a face surface and a multi-layered antireflection antistatic film composed of three layers or more which are formed on the face surface. The multi-layered antireflection antistatic film has an absorption layer, a conductive layer, and a protect layer in the order from a face surface side. The absorption layer includes at least one kind of organic coloring matter, SiO2, and a silane coupling agent, and the silane coupling agent content thereof is seven times or less by weight the total solid content of SiO2 and the organic coloring matter.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: September 21, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Daiki Takahashi, Michiyo Abe, Katsuyuki Aoki
  • Publication number: 20020153824
    Abstract: A display unit has a face surface and a multi-layered antireflection antistatic film composed of three layers or more which are formed on the face surface. The multi-layered antireflection antistatic film has an absorption layer, a conductive layer, and a protect layer in the order from a face surface side. The absorption layer includes at least one kind of organic coloring matter, SiO2, and a silane coupling agent, and the silane coupling agent content thereof is seven times as high as the total weight of solid contents of SiO2 and the organic coloring matter or lower.
    Type: Application
    Filed: February 19, 2002
    Publication date: October 24, 2002
    Inventors: Hisashi Chigusa, Daiki Takahashi, Michiyo Abe, Katsuyuki Aoki
  • Patent number: 6411028
    Abstract: A conductive anti-reflection film is disclosed, that comprises a first layer containing first conductive particles and a second layer disposed for covering the first layer, the second layer containing SiO2 and second conductive particles. A conductive anti-reflection film prevents the AEF (Alternating Electric Field) from taking place and light from reflecting and allows the front surface to be conductive. In addition, the conductive anti-reflection film has high productivity and high durability. A cathode ray tube displays a high quality picture for a long service life.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: June 25, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Michiyo Abe, Hedemi Matsuda
  • Patent number: 6184125
    Abstract: A second coat film is formed on a first coat film containing a conductive substance, the second coat film having an expansion coefficient almost the same as the expansion coefficient of the first coat film under a sintering condition. The first and second coat films are sintered at the same time. Thus, a conductive anti-reflection film with sufficiently low surface resistance, excellent water resistance and chemical resistance, and reduced reflected light can be obtained. When the conductive anti-reflection film is used, a cathode ray tube that is almost free from the AEF (Alternating Electric Field) and that displays a high quality picture for a long time can be obtained.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: February 6, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Michiyo Abe, Katsuyuki Aoki
  • Patent number: 6157125
    Abstract: A second film that contains a substance that secures the conductivity of conductive particles is formed on a first film that contains the conductive particles. The first film and the second film are sintered at the same time. Thus, a conductive anti-reflection film having a sufficiently low surface resistance with a sufficient transmissivity for a high transparency can be obtained with high cost performance. When the conductive anti-reflection film is used for a cathode ray tube, it can almost prevent the AEF (Alternating Electric Field), display a picture in high quality, and be excellent in cost performance.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: December 5, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Michiyo Abe, Katsuyuki Aoki
  • Patent number: 5965975
    Abstract: A second coat film is formed on a first coat film containing a conductive substance, the second coat film having an expansion coefficient almost the same as the expansion coefficient of the first coat film under a sintering condition. The first and second coat films are sintered at the same time. Thus, a conductive anti-reflection film with sufficiently low surface resistance, excellent water resistance and chemical resistance, and reduced reflected light can be obtained. When the conductive anti-reflection film is used, a cathode ray tube that is almost free from the AEF (Alternating Electric Field) and that displays a high quality picture for a long time can be obtained.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: October 12, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Michiyo Abe, Katsuyuki Aoki
  • Patent number: 5962966
    Abstract: A second film that contains a substance that secures the conductivity of conductive particles is formed on a first film that contains the conductive particles. The first film and the second film are sintered at the same time. Thus, a conductive anti-reflection film having a sufficiently low surface resistance with a sufficient transmissivity for a high transparency can be obtained with high cost performance. When the conductive anti-reflection film is used for a cathode ray tube, it can almost prevent the AEF (Alternating Electric Field), display a picture in high quality, and be excellent in cost performance.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: October 5, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hisashi Chigusa, Michiyo Abe, Katsuyuki Aoki
  • Patent number: 5652476
    Abstract: The present invention is directed to an antireflection film having a multilayer structure in which an antireflection multi-layer film including at least two thin films is formed on a substrate, wherein at least one of the thin films contains a coloring agent. The antireflection multi-layer film absorbs light of an entire range of wavelength of 400-700 nm, and the reflectance of the antireflection multi-layer film with regard to the wavelength, light of which this antireflection multi-layer film can absorb, is smaller than the reflectance of the substrate. The antireflection film can be applied to a cathode ray tube or a light-transmitting display substrate of a display apparatus such as a liquid crystal display apparatus for the purpose of effectively avoiding reflection of external light.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: July 29, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidemi Matsuda, Takeo Itou, Hisashi Chigusa, Michiyo Abe
  • Patent number: 5444329
    Abstract: The present invention is directed to an antireflection film having a multilayer structure in which an antireflection multilayer film including at least two thin films is formed on a substrate, wherein at least one of the thin films contains a coloring agent. The antireflection multi-layer film absorbs light of an entire range of wavelength of 400-700 nm, and the reflectance of the antireflection multi-layer film with regard to the wavelength, light of which this antireflection multi-layer film can absorb, is smaller than the reflectance of the substrate. The antireflection film can be applied to a cathode ray tube or a light-transmitting display substrate of a display apparatus such as a liquid crystal display apparatus for the purpose of effectively avoiding reflection of external light.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: August 22, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidemi Matsuda, Takeo Itou, Hisashi Chigusa, Michiyo Abe