Patents by Inventor Akira Taomoto

Akira Taomoto 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).

  • Publication number: 20050206293
    Abstract: The present invention provides an emissive material with excellent electron emission characteristics. In particular, the present invention relates to a method for manufacturing an emissive material consisting of oriented graphite, having a step of obtaining an oriented graphite comprising a second component and having poses on the inside by heat treating a polymer film in the presence of a second, non-carbon component.
    Type: Application
    Filed: May 23, 2005
    Publication date: September 22, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akira Taomoto, Toyokazu Ozaki, Masahiro Deguchi, Motoshi Shibata
  • Publication number: 20050184635
    Abstract: The present invention provides an electron emission material that is excellent in electron emission characteristics, a method of manufacturing the same, as well as an electron emission element. The method is a method of manufacturing an electron emission material including a carbon material obtained by baking a polymer film. In the method, a polyamic acid solution is prepared in which at least one metallic compound selected from a metal oxide and a metal carbonate is dispersed; the polyamic acid solution thus prepared is formed into a film and then is imidized to form a polyimide film including the metallic compound; and then the polyimide film thus formed is baked to form the carbon material. The electron emission material is formed so that it includes a carbon material, a protrusion having a concavity in its surface is formed at the surface of the carbon material, and the protrusion includes a metallic element.
    Type: Application
    Filed: April 11, 2005
    Publication date: August 25, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akira Taomoto, Masahiro Deguchi, Mitsuru Hashimoto, Toyokazu Ozaki, Motoshi Shibata
  • Publication number: 20050179024
    Abstract: Provided are an electron emission material having a reduced work function, and an electron emission element that has lower power consumption and/or high current density and exhibits excellent electron emission performance. An electron emission material includes a semiconductor substrate having atomic steps on a surface thereof and a flat region between two of the atomic steps adjacent to each other, and an adsorbed layer arranged in the flat region. The adsorbed layer contains at least one element selected from an alkali metal element, an alkaline-earth metal element, and Sc.
    Type: Application
    Filed: April 11, 2005
    Publication date: August 18, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Motoshi Shibata, Masahiro Deguchi, Akira Taomoto, Toyokazu Ozaki
  • Publication number: 20050134167
    Abstract: A thermoelectric transducer comprising an emitter (1) for emitting electrons according to the action of heat or an electric field, a collector (2) disposed so as to face the emitter (1) and collect electrons emitted from the emitter (1), and an electron transport layer (3) held between the emitter (1) and the collector (2) to serve as a region for transferring the electrons emitted from the emitter (1), the electron transport layer (3) being a porous body having a mixed structure of a vapor phase and a solid phase, the entire solid phase which composes the porous body being composed of an insulating material, and the electrons emitted from the emitter traveling in the vapor phase by applying an electric potential to the collector (2) that is higher than that applied to the emitter (1).
    Type: Application
    Filed: January 27, 2005
    Publication date: June 23, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Masahiro Deguchi, Akira Taomoto, Toyokazu Ozaki, Motoshi Shibata
  • Publication number: 20050127814
    Abstract: A principal object of the present invention is to provide efficiently an electron-emitting element demonstrating performance equal or superior to that attained with the conventional technology.
    Type: Application
    Filed: January 4, 2005
    Publication date: June 16, 2005
    Inventors: Masahiro Deguchi, Masa-aki Suzuki, Akira Taomoto, Toyokazu Ozaki, Motoshi Shibata
  • Publication number: 20050127334
    Abstract: In the present invention an electron-emitting material is provided wherein the field emission initiation voltage or work function is smaller than that of conventional materials. That is, the present invention relates to an electron-emitting sheet material which is a material comprising a substrate 102 and a graphite sheet 101 laminated on the top of the substrate 102, wherein (1) the graphite sheet 101 has a layered structure of layers of graphenes consisting of a plurality of carbon hexagonal networks, (2) the graphenes are layered relative to one another so that the c-axial direction of each graphene is substantially perpendicular to the plane of the substrate 102, (3) the graphite sheet 101 is laminated on top of the substrate 102 so that the c-axial direction of each graphene is substantially perpendicular to the plane of the substrate 102, and (4) the graphite sheet 101 comprises an element other than carbon as a second element.
    Type: Application
    Filed: February 2, 2005
    Publication date: June 16, 2005
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Motoshi Shibata, Masahiro Deguchi, Akira Taomoto, Toyokazu Ozaki
  • Patent number: 6510672
    Abstract: Through a chemical vapor deposition process, a tubular graphite body is fabricated as a hydrogen storage element that comprises a tubular graphite body forming an elongated shell and at least one metal plug closing an open end of the elongated shell so as to form a closed inside space for storing hydrogen gas.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: January 28, 2003
    Inventors: Yoshimasa Ohki, Sohji Tsuchiya, Akira Taomoto
  • Publication number: 20020021997
    Abstract: Through the formation of an organic polymer film on the surface of a bare graphite sheet by electrodeposition or through the application of a resin film to the surface thereof, a good-quality coated graphite sheet of uniform thickness which has excellent electric insulation and a low thermal resistance and prevents graphite powder from separating while retaining thermal conductivity and flexibility of the bare graphite sheet can be provided. The organic polymer film is formed by electrodeposition from a resin selected from the group consisting of an anionic electrodeposition resin, a cationic electrodeposition resin, a thermosetting electrodeposition resin and a UV curing electrodeposition resin or is formed of polyimide. The resin film is applied by a method selected from the group consisting of dipping, spin coating, screen printing, brushing and spraying, using at least one resin selected from the group consisting of an epoxy resin, a polyimide resin and a fluororesin.
    Type: Application
    Filed: June 12, 2001
    Publication date: February 21, 2002
    Inventors: Akira Taomoto, Kenji Akami, Yasuo Kudo, Hiroki Takeoka, Toshiharu Saito, Souji Tsuchiya
  • Patent number: 5223750
    Abstract: An artificial neural function circuit includes an organic thin film element having a resistance state which changes in dependence on an electrical signal inputted thereto and exhibits information processing function similar to that of a nervous system. The organic thin film element has such physical properties that the changed resistance state is held as it is at least for a predetermined time period even after removal of the electric input signal and that the direction in which the resistance is increased or decreased depends on the polarity of the electric input signal. As an example of such organic thin film, a lead phthalocyanine thin film is employed.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: June 29, 1993
    Assignee: Matsushita Research Institute Tokyo, Inc.
    Inventors: Katsuhiro Nichogi, Akira Taomoto, Shiro Asakawa, Kunio Yoshida
  • Patent number: 5035835
    Abstract: A modulatory molecular element includes a chain of molecules A and molecules Bi. The molecules A alternate with the molecules Bi and are bound to the adjacent molecules Bi. The molecules A are selected from common molecules. The molecules Bi are selected from at least two different types of molecules. The molecules Bi are changeable from first stable states to second stable states in response to applied stimulative energy. The molecules Bi return from the second stable states to the first stable states at different relaxation time constants dependent on the types of the molecules Bi when the applied stimulative energy is removed. The chain has a physical property which depends on whether or not all the molecules Bi are in the second stable states.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: July 30, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shiro Asakawa, Yasuhiko Machida, Akira Taomoto, Katsuhiro Nichogi