Patents by Inventor Akira Fujishima

Akira Fujishima 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: 8048511
    Abstract: This invention provides a coating agent, which can form a coating film over a wide area in a simple manner, is chemically and physically stable, and can form an ultrathin film, a coating film, a method for formation of coating film, and various products coated with the coating film. The coating agent contains thin sheet titanium oxide fine particles. The coating agent may comprise a solution containing a titania nanosheet and a sol of silicon oxide or titanium oxide. The coating film is formed by coating and then drying and heating the coating and has a microstructure in which thin sheet titanium oxide fine particles are stacked with a high level of orientation.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 1, 2011
    Assignee: Central Japan Railway Company
    Inventors: Hiroshi Uetsuka, Tetsuya Shichi, Koji Oshika, Akira Fujishima, Katsuhiko Takagi
  • Patent number: 8030333
    Abstract: A novel crystal of (R)-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole or a salt thereof of the present invention is useful for an excellent antiulcer agent.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: October 4, 2011
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki, Keiji Kamiyama
  • Patent number: 8003219
    Abstract: The present invention provides a technology related to a conductive film which is high in transparency, conductivity, and adhesiveness to a base plate. The present invention also provides a coating liquid including metal materials reacting with a ligand represented by a particular Chemical Formula and including indium (In), tin (Sn), or both thereof.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: August 23, 2011
    Assignee: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Takafumi Numata, Kenichi Katsumata, Akimasa Nakamura, Yasuhiro Katsumata, Teruo Komine, Kenichirou Amemiya, Makoto Yamashita, Akira Fujishima
  • Patent number: 7998562
    Abstract: The present invention provides a new photocatalyst sheet in which the substrates coated with fluorocarbon resin are readily weldable mutually, and also of the high antifouling and water-repellant property by coating the outermost surface of film/fabric structure with fluorocarbon resin containing a photocatalyst and a photocatalyst sheet comprises a substrate (2), a first fluorocarbon resin layer (3) coated on said substrate (2), a second fluorocarbon resin layer (4) coated on said first fluorocarbon resin layer (3), and a third fluorocarbon resin layer (5) containing photocatalyst coated on said second fluorocarbon resin layer (4). The melting point of the first fluorocarbon resin layer (3) may be higher than the melting points of the second and the third fluorocarbon resin layers (4), (5).
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: August 16, 2011
    Assignee: Taiyo Kogyo Corporation
    Inventors: Kazuhiro Abe, Hiroshi Toyoda, Takayuki Nakata, Eiichi Okamoto, Akira Fujishima, Kazuhito Hashimoto
  • Patent number: 7993753
    Abstract: The present invention provides a coating liquid including organic metal complexes represented by Chemical Formula 1. R1-R8 in Chemical Formula 1 is one of the followings (1)-(4): (1) a group represented by CnH2n+1 (aforementioned n is an integral number equal to or larger than 0); (2) a group represented by COOR9 (aforementioned R9 is a group represented by CmH2m+1, and aforementioned m is an integral number equal to or larger than 0); (3) a halogen atom; and (4) CN or NO2.
    Type: Grant
    Filed: December 25, 2006
    Date of Patent: August 9, 2011
    Assignee: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Takafumi Numata, Kenichi Katsumata, Akimasa Nakamura, Yasuhiro Katsumata, Teruo Komine, Kenichirou Amemiya, Akira Fujishima
  • Patent number: 7964283
    Abstract: The present invention provides a coating liquid including organic metal complexes represented by Chemical Formula 1. R1-R8 in Chemical Formula 1 is one of the followings (1)-(4): (1) a group represented by CnH2n+1 (aforementioned n is an integral number equal to or larger than 0); (2) a group represented by COOR9 (aforementioned R9 is a group represented by CmH2m+1, and aforementioned m is an integral number equal to or larger than 0); (3) a halogen atom; and (4) CN or NO2.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: June 21, 2011
    Assignee: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Takafumi Numata, Kenichi Katsumata, Akimasa Nakamura, Yasuhiro Katsumata, Teruo Komine, Kenichirou Amemiya, Akira Fujishima
  • Publication number: 20110122975
    Abstract: Demodulator includes reception quality evaluation circuit for evaluating the quality of a received signal by comparison with a first reference value, and outputting an evaluation signal; and driving circuit receiving the evaluation signal. If reception quality evaluation circuit evaluates that the quality of the received signal is acceptable, power supply from driving circuit to DC offset control loop is stopped. This offers a high-frequency receiver that reduces power consumption.
    Type: Application
    Filed: December 24, 2008
    Publication date: May 26, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Takashi Umeda, Hiroaki Ozeki, Akira Fujishima
  • Patent number: 7872540
    Abstract: An oscillator device includes a resonator including a coil and a capacitor connected to the coil in parallel; and an oscillator connected to the resonator. Electric waves are emitted from the coil to at least one receiving antenna of the receiver while the oscillator device changes position and direction over time. The coil has an outer diameter and a total length which is approximately the same as the outer diameter.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: January 18, 2011
    Assignees: Matsushita Electric Industrial Co., Ltd., Olympus Medical Systems Corp.
    Inventors: Yasuteru Asakawa, Naoki Yuda, Eiji Okada, Akira Fujishima, Masatoshi Homan
  • Publication number: 20100317512
    Abstract: Disclosed is a method for forming a photocatalyst thin film, which is characterized in that a photocatalyst thin film containing a niobium-alkali metal complex oxide is formed by forming and then firing a layer containing a niobia nanosheet on the surface of a base containing an alkali metal.
    Type: Application
    Filed: February 8, 2008
    Publication date: December 16, 2010
    Applicant: CENTRAL JAPAN RAILWAY COMPANY
    Inventors: Christopher Cordonier, Tetsuya Shichi, Kenichi Katsumata, Yasuhiro Katsumata, Akira Fujishima, Takafumi Numata, Takayoshi Sasaki
  • Publication number: 20100279149
    Abstract: Disclosed is a method for forming a photocatalyst thin film, which is characterized in that a photocatalyst thin film containing a niobium-alkali metal complex oxide is formed by forming and then firing a layer containing niobium on the surface of a base containing an alkali metal.
    Type: Application
    Filed: February 8, 2008
    Publication date: November 4, 2010
    Applicant: CENTRAL JAPAN RAILWAY COMPANY
    Inventors: Christopher Cordonier, Tetsuya Shichi, Kenichi Katsumata, Yasuhiro Katsumata, Akira Fujishima
  • Publication number: 20100222391
    Abstract: A novel crystal of (R)-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole or a salt thereof of the present invention is useful for an excellent antiulcer agent.
    Type: Application
    Filed: April 30, 2010
    Publication date: September 2, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Akira FUJISHIMA, Isao AOKI, Keiji KAMIYAMA
  • Patent number: 7737282
    Abstract: A novel crystal of (R)-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole or a salt thereof of the present invention is useful for an excellent antiulcer agent.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: June 15, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki, Keiji Kamiyama
  • Publication number: 20100089765
    Abstract: A method for producing ozone-water includes steps of providing a cathode and an anode so as to interpose a solid polymer film therebetween, and electrolyzing water. A conductive diamond having one of a porous structure and a mesh structure is used as the anode. Ozone-water of an intermediate to high temperature is produced by electrolyzing water of an intermediate to high temperature.
    Type: Application
    Filed: May 2, 2006
    Publication date: April 15, 2010
    Applicant: Central Japan Railway Company
    Inventors: Kazuki Arihara, Akira Fujishima
  • Publication number: 20100062281
    Abstract: The present invention provides a technology related to a conductive film which is high in transparency, conductivity, and adhesiveness to a base plate. The present invention also provides a coating liquid including metal materials reacting with a ligand represented by Chemical Formula 1 and including indium (In), tin (Sn), or both thereof. Each of R21—R24 in the Chemical Formula 1 is one of the followings (1)-(11) and X11 and X12 is either hetero atoms or carboxylic acid.
    Type: Application
    Filed: January 31, 2007
    Publication date: March 11, 2010
    Applicant: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Takafumi Numata, Kenichi Katsumata, Akimasa Nakamura, Yasuhiro Katsumata, Teruo Komine, Kenichirou Amemiya, Makoto Yamashita, Akira Fujishima
  • Publication number: 20100007742
    Abstract: A high frequency receiver cancels a plurality of noise signals which are contained in a high frequency signal and outputted from a plurality of noise signal sources. The high frequency receiver cancels the noise signals using a plurality of pick-up noise signals extracted from a plurality of pick-up antennas disposed near the noise signal sources. At least one of the pick-up noise signals is selected in descending order of their effects on the degradation of reception quality, thereby completing noise cancelling in a short time.
    Type: Application
    Filed: June 17, 2009
    Publication date: January 14, 2010
    Applicant: Panasonic Corporation
    Inventors: Yuki Satoh, Akira Fujishima
  • Publication number: 20090324963
    Abstract: A coating liquid including one or more of metal complexes selected from a metal complex A represented by Chemical Formula 1, a metal complex B represented by Chemical Formula 2, and a metal complex C represented by Chemical Formula 3. M in Chemical Formula 1, Chemical Formula 2 and Chemical Formula 3 represents a metal ion. Each of X1-X4 in Chemical Formula 1, Chemical Formula 2 and Chemical Formula 3 is one of O, NH, CO2 and S. Each of Y1-Y8 in Chemical Formula 1 and Y1-Y4 in Chemical Formula 3 is either CH or N. Each of Z1-Z3 in Chemical Formula 2 and Chemical Formula 3 and Z4-Z6 in Chemical Formula 2 is one selected from a group of O, NH and S, and two selected from a group of CH and N. L in Chemical Formula 1, Chemical Formula 2 and Chemical Formula 3 represents an axial ligand. k in Chemical Formula 1, Chemical Formula 2 and Chemical Formula 3 represents a valence of each of the metal complexes and is equal to a sum of electric charges of M, X1-X4 and L.
    Type: Application
    Filed: July 12, 2007
    Publication date: December 31, 2009
    Applicant: CENTRAL JAPAN RAILWAY COMPANY
    Inventors: Christopher Cordonier, Tetsuya Shichi, Takafumi Numata, Kenichi Katsumata, Akimasa Nakamura, Yasuhiro Katsumata, Teruo Komine, Kenichirou Amemiya, Akira Fujishima, Makoto Yamashita
  • Publication number: 20090285100
    Abstract: In a mobile communication system, which has a plurality of radio network controllers and a number of radio base stations connected to each of the radio network controllers, for sending and receiving user data between a host network and mobile stations via the radio network controllers and radio base stations, a plurality of transmission paths that pass through one or more radio network controllers are set up between a base station, which sends and receives radio signals to and from a mobile station, and the host network. When data is being sent and received using one transmission path from the host network to a base station through a radio network controller, traffic conditions on this transmission path are monitored. When traffic has increased, the user data is dispersed by being passed through a plurality of transmission paths.
    Type: Application
    Filed: July 23, 2009
    Publication date: November 19, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuo Tomita, Toshiyuki Yokosaka, Akira Fujishima
  • Patent number: 7613149
    Abstract: In a mobile communication system, which has a plurality of radio network controllers and a number of radio base stations connected to each of the radio network controllers, for sending and receiving user data between a host network and mobile stations via the radio network controllers and radio base stations, a plurality of transmission paths that pass through one or more radio network controllers are set up between a base station, which sends and receives radio signals to and from a mobile station, and the host network. When data is being sent and received using one transmission path from the host network to a base station through a radio network controller, traffic conditions on this transmission path are monitored. When traffic has increased, the user data is dispersed by being passed through a plurality of transmission paths.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 3, 2009
    Assignee: Fujitsu Limited
    Inventors: Tetsuo Tomita, Toshiyuki Yokosaka, Akira Fujishima
  • Publication number: 20090258255
    Abstract: A method for producing a diamond having an acicular projection array structure on a surface thereof comprises the step of forming the acicular projection array structure on a surface of a diamond base material by treating the surface of the diamond base material by dry etching using oxygen gas. At least one dopant selected among boron (B), nitrogen (N), aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), copper (Cu), arsenic (As), molybdenum (Mo), platinum (Pt) and gold (Au) is doped with a concentration of 1×1019 atoms/cm3 and more at least in a region near the surface of the diamond base material.
    Type: Application
    Filed: May 29, 2006
    Publication date: October 15, 2009
    Applicant: Central Japan Railway Company
    Inventors: Chiaki Terashima, Kazuki Arihara, Akira Fujishima
  • Patent number: 7580690
    Abstract: A high-frequency receiver capable of improving both an interference-resistant characteristic and reception sensitivity is provided. A gain switch control unit includes: a signal level determination unit comparing a gain control voltage of an amplifying circuit with a reference voltage; and a gain switch controller provided between an output terminal of the signal level determination unit and a gain control input terminal provided to an amplifying circuit for gain control. When receiving a signal in a strong electric field area having a high possibility that a strong interference signal exists, a gain of the amplifying circuit is set to be smaller than that in a case of receiving a signal in a weak electric field area by a gain switch signal output from the gain switch controller.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: August 25, 2009
    Assignee: Panasonic Corporation
    Inventors: Akira Fujishima, Yasuhiro Hibino, Toshihiro Furusawa, Hirokazu Kitamura, Takashi Umeda, Takahiro Koyama