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: 9145389
    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: October 7, 2014
    Date of Patent: September 29, 2015
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki
  • Patent number: 9126193
    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: Grant
    Filed: February 8, 2008
    Date of Patent: September 8, 2015
    Assignee: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Kenichi Katsumata, Yasuhiro Katsumata, Akira Fujishima
  • Publication number: 20150182654
    Abstract: An air purification system includes an internally hollow cylindrical casing made of a non-conducting material; an inner electrode arranged on an inner surface of the supporting member; an outer electrode arranged on an outer surface of the supporting member; a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma. The photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.
    Type: Application
    Filed: January 30, 2015
    Publication date: July 2, 2015
    Inventors: Yuko MORITO, Akira FUJISHIMA
  • Patent number: 9061086
    Abstract: A photocatalyst element structure includes a photocatalyst element that includes a flat photocatalyst sheet and an undulating photocatalyst sheet overlapped on the flat photocatalyst sheet. The flat photocatalyst sheet and the undulating photocatalyst sheet include a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles. The photocatalyst element structure can include a plurality of the photocatalyst elements so that the flat photocatalyst sheet and the undulating photocatalyst sheet alternate.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: June 23, 2015
    Assignees: U-VIX Corporation, Kanagawa Academy of Science and Technology
    Inventors: Yuko Morito, Akira Fujishima, Takuji Horie, Kazuya Nakata, Taketoshi Murakami, Tsuyoshi Ochiai
  • Patent number: 9012354
    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: Grant
    Filed: February 8, 2008
    Date of Patent: April 21, 2015
    Assignee: Central Japan Railway Company
    Inventors: Christopher Cordonier, Tetsuya Shichi, Kenichi Katsumata, Yasuhiro Katsumata, Akira Fujishima, Takafumi Numata, Takayoshi Sasaki
  • Patent number: 8974735
    Abstract: An air purification system includes an internally hollow cylindrical casing made of a non-conducting material; an inner electrode arranged on an inner surface of the supporting member; an outer electrode arranged on an outer surface of the supporting member; a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma. The photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: March 10, 2015
    Assignee: U-Vix Corporation
    Inventors: Yuko Morito, Akira Fujishima
  • Publication number: 20150025115
    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: October 7, 2014
    Publication date: January 22, 2015
    Inventors: Akira FUJISHIMA, Isao AOKI
  • Patent number: 8884019
    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: September 6, 2013
    Date of Patent: November 11, 2014
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki
  • Patent number: 8734626
    Abstract: An anode (3) and a cathode (5), interposing a solid polymer film (7), are disposed. While supplying purified water from a supply port (13a) of an anode chamber (13), wherein the anode (3) is disposed, and a supply port (15a) of a cathode chamber (15), wherein the cathode (5) is disposed, direct electric current is applied between the anode (3) and the cathode (5). As a result, ozone-water is discharged from an outlet port (13b) of the anode chamber (13). In such an electrolysis cell (1), a free-standing conductive diamond plate, formed by microwave plasma assisted CVD so as to have a thickness of 0.8 mm, is used as the anode (3). The diamond plate is provided with holes, having a diameter of 1 mm and disposed such that a center distance therebetween becomes 2 mm. Therefore, the electrolysis cell (1) can stably produce ozone without causing exfoliation of the anode (3), even when high voltage and large current are applied between the anode (3) and the cathode (5).
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: May 27, 2014
    Assignee: Central Japan Railway Company
    Inventors: Kazuki Arihara, Akira Fujishima
  • Publication number: 20140012006
    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: September 6, 2013
    Publication date: January 9, 2014
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Akira FUJISHIMA, Isao AOKI
  • Patent number: 8552198
    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: August 22, 2012
    Date of Patent: October 8, 2013
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Akira Fujishima, Isao Aoki, Keiji Kamiyama
  • Patent number: 8526361
    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: July 23, 2009
    Date of Patent: September 3, 2013
    Assignee: Fujitsu Limited
    Inventors: Tetsuo Tomita, Toshiyuki Yokosaka, Akira Fujishima
  • Patent number: 8445118
    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 Formula 1, 2 and 3 represents a metal ion. Each of X1-X4 in Formula 1, 2 and 3 is one of O, NH, CO2 and S. Each of Y1-Y8 in Formula 1 and Y1-Y4 in Formula 3 is either CH or N. Each of Z1-Z3 in Formula 2 and 3 and Z4-Z6 in Formula 2 is one selected from a group of O, NH and S, and two selected from a group of CH and N. L represents an axial ligand. k 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: Grant
    Filed: July 12, 2007
    Date of Patent: May 21, 2013
    Assignee: 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
  • Patent number: 8431006
    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: Grant
    Filed: May 2, 2006
    Date of Patent: April 30, 2013
    Assignee: Central Japan Railway Company
    Inventors: Kazuki Arihara, Akira Fujishima
  • Publication number: 20120316344
    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: August 22, 2012
    Publication date: December 13, 2012
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Akira FUJISHIMA, Isao AOKI, Keiji KAMIYAMA
  • Patent number: 8311155
    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: Grant
    Filed: December 24, 2008
    Date of Patent: November 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Takashi Umeda, Hiroaki Ozeki, Akira Fujishima
  • Publication number: 20120225659
    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: May 15, 2012
    Publication date: September 6, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuo Tomita, Toshiyuki Yokosaka, Akira Fujishima
  • Publication number: 20120171079
    Abstract: A photocatalyst element structure includes a photocatalyst element that includes a flat photocatalyst sheet and an undulating photocatalyst sheet overlapped on the flat photocatalyst sheet. The flat photocatalyst sheet and the undulating photocatalyst sheet include a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles. The photocatalyst element structure can include a plurality of the photocatalyst elements so that the flat photocatalyst sheet and the undulating photocatalyst sheet alternate.
    Type: Application
    Filed: August 4, 2010
    Publication date: July 5, 2012
    Inventors: Yuko Morito, Akira Fujishima, Takuji Horie, Kazuya Nakata, Taketoshi Murakami, Tsuyoshi Ochiai
  • Publication number: 20120121470
    Abstract: An air purification system includes an internally hollow cylindrical casing made of a non-conducting material; an inner electrode arranged on an inner surface of the supporting member; an outer electrode arranged on an outer surface of the supporting member; a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma. The photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 17, 2012
    Inventors: Yuko MORITO, Akira Fujishima
  • Publication number: 20110319450
    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: September 1, 2011
    Publication date: December 29, 2011
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Akira FUJISHIMA, Isao AOKI, Keiji KAMIYAMA