Patents by Inventor Tadashi Ootake

Tadashi Ootake 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: 7468206
    Abstract: The present invention provides an organic ultra-thin film firmly fixed to a substrate with the film thickness ranging from tens of nm to hundreds of nm. The organic ultra-thin film comprises polymers fixed on a substrate by M2—O—A— bond in which A represents an Si, Ge, Ti, Sn or Zr atom in the polymer, and M2 represents an atom in the substrate) or by a coordinate bond, the polymers are combined with each other by —A1—O—A1?— bond in which A1 and A1? are Si, Ge, Ti, Sn, Zr or S or by a coordinate bond.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: December 23, 2008
    Assignee: Panasonic Corporation
    Inventors: Tadashi Ootake, Yasuo Takebe, Norihisa Mino, Hiroaki Takezawa
  • Patent number: 6985132
    Abstract: A display device using a cylinder-shaped pixel having a large dipole moment and high response speed and a method for manufacturing the same. In the display device, an organic film is bonded and fixed to a part of or an entire surface of a base material having a volume of less than 1 cm3 via —A—O— bond, where A denotes Si, Ge, Sn, Ti or Zr, or via —A—N— bond, where A denotes Si, Ge, Sn, Ti or Zr, in the former, the side of O is bonded to the substrate and in the latter, the side of N is bonded to the substrate; the surface region of the base material is divided into two regions in accordance with the kind of organic films or the presence or absence of the organic film, and each of the two regions accounting for 40% or more and 60% or less of the surface area of the base material, a plurality of charged substances in different charged states or with opposite polarities in the two regions.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: January 10, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noboru Nomura, Tohru Nakagawa, Masahiro Nagasawa, Tadashi Ootake
  • Patent number: 6524715
    Abstract: A thin film forming chemical absorption material including at least a functional group of the formula CF3—CF2—CH2—O—(benzene)—CH=CH—C(O)—(benzene)— and a —SiX group (X represents halogen) as an end group bonded by siloxane bond. The chemical absorption material can form a monomolecular thin-film having photosensitive groups that are transparent and stable in a visible light region and cause photochemical reaction in an ultraviolet region. A liquid crystal alignment film includes an aggregation of adsorption molecules chemically absorbed directly on a surface with electrodes or chemically adsorbed indirectly thereon through another material layer having a characteristic group the formula above and a —O—Si bond group at a molecular end group.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: February 25, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadashi Ootake, Kazufumi Ogawa, Takaiki Nomura, Takako Takebe
  • Patent number: 6451392
    Abstract: A novel chemical adsorbate compound capable of forming a monomolecular thin film is provided. The chemical adsorbate compound is transparent and stable in the visible light range, and has a photosensitive group which causes a photochemical reaction in the ultraviolet light range. Utilizing the chemical adsorbate compound, a liquid crystal alignment film is also provided. The liquid crystal alignment film has an excellent thermal stability and alignment control performance. Utilizing liquid crystal alignment film, a liquid crystal display device is further provided. The liquid crystal display device achieves wide viewing angles and clear display images at small driving voltages. These are achieved by, as one example, providing a chemical adsorbate compound including a chalcone derivative having a COO group at the 4′ position in the chalcone skeleton and an —SiX3 group, where X is a halogen, at the molecular end adjacent to the COO group.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: September 17, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadashi Ootake, Kazufumi Ogawa, Takaiki Nomura, Takako Takebe
  • Publication number: 20020126261
    Abstract: A display device using a cylinder-shaped pixel having a large dipole moment and high response speed and a method for manufacturing the same. In the display device, an organic film is bonded and fixed to a part of or an entire surface of a base material having a volume of less than 1 cm3 via —A—O— bond, where A denotes Si, Ge, Sn, Ti or Zr, or via —A—N— bond, where A denotes Si, Ge, Sn, Ti or Zr, in the former, the side of O is bonded to the substrate and in the latter, the side of N is bonded to the substrate; the surface region of the base material is divided into two regions in accordance with the kind of organic films or the presence or absence of the organic film, and each of the two regions accounting for 40% or more and 60% or less of the surface area of the base material, a plurality of charged substances in different charged states or with opposite polarities in the two regions.
    Type: Application
    Filed: November 27, 2001
    Publication date: September 12, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noboru Nomura, Tohru Nakagawa, Masahiro Nagasawa, Tadashi Ootake
  • Patent number: 6203919
    Abstract: An electrically insulating film capable of maintaining a preferable insulating property even with a film thickness of only some &mgr;and a method for preparing the same are disclosed. The insulating film comprises a first layer formed on a surface of a conductor substrate of a transition metal and comprised of molecules fixed on the surface of the conductor substrate through chemical bonds such as transition metal-sulfur bonds or chelate bonds, and a second layer formed on the first layer and comprised of a resin bonded to the molecules of the first layer through covalent bonds.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuo Takebe, Tadashi Ootake, Norihisa Mino, Hiroaki Takezawa
  • Patent number: 6054190
    Abstract: A method for producing an alignment chemisorption monomolecular film having high efficiency of washing solution and being excellent in alignment property of molecules constituting the alignment monomolecular film. The method comprises the step of forming a monomolecular film by chemisorption on a hydrophilic surface of a base material by bringing the hydrophilic surface into contact with a silane-based surfactant having a carbon chain or a siloxane bond chain so as to cause a chemical reaction between them, thereby bonding one end of the surfactant molecules to the hydrophilic surface, orienting the base material in a predetermined orientation, and then vapor washing the base material in vapor of an organic solvent, and aligning molecules constituting the monomolecular film by the flow of condensation of the organic solvent formed on the surface of the base material during the vapor washing.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: April 25, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazufumi Ogawa, Takaiki Nomura, Tadashi Ootake
  • Patent number: 5324543
    Abstract: The invention provides a method of forming a monomolecular film of fluorine-containing molecules on a substrate surface such that the film has a uniform thickness with minimal surface irregularities and is substantially pin hole free. The invention also provides for a substrate obtained by using the same method which has excellent water- and oil-repelling, anti-fogging, and anti-contaminating properties. The monomolecular film is formed on the substrate surface either directly or via a given protective film. The monomolecular film coating is characterized by a plurality of different chlorosilane-based surface active materials which are different in molecular length and have a fluorine group. The surface irregularities of the film are generally confined to the molecular level.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: June 28, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazufumi Ogawa, Tadashi Ootake, Mamoru Soga
  • Patent number: 5225274
    Abstract: The invention seeks to provide a method of forming a monomolecular film of fluorine-containing molecules on a substrate surface such that the film has a uniform thickness with minimal surface irregularities and is substantially pin hole free. The invention also provides for a substrate obtained by using the same method which has excellent water- and oil-repelling, anti-fogging, and anti-contaminating properties. The monomolecular film is formed on the substrate surface either directly or via a given protective film. The monomolecular film coating is characterized by a plurality of different chlorosilane-based surface active materials which are different in molecular length and have a fluorine group. The surface irregularities of the film are generally confined to the molecular level.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: July 6, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazufumi Ogawa, Tadashi Ootake, Mamoru Soga