Patents by Inventor Kenzo Maehashi

Kenzo Maehashi 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: 9825161
    Abstract: Provided is a logical operation element that performs logical operations on three or more inputs using a single unique device. The logical operation element 30 is provided with an electrode 5A and the other electrode 5B that are provided to have a nanogap, a metal nanoparticle 7 arranged between the electrode 5A and the other electrode 5B in insulated state, and a plurality of gate electrodes 5C, 5D, 11, 11A, 11B for adjusting a charge of the metal nanoparticle 7. Electric current that flows between the electrode 5A and the other electrode 5B is controlled in accordance with the voltage applied to three or more of the gate electrodes 5C, 5D, 11, 11A, 11B.
    Type: Grant
    Filed: March 9, 2014
    Date of Patent: November 21, 2017
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka Majima, Toshiharu Teranishi, Kazuhiko Matsumoto, Kenzo Maehashi, Tomofumi Susaki, Yasuhide Ohno, Kosuke Matsuzaki, Guillaume Hubert Frederic Hackenberger
  • Publication number: 20160027908
    Abstract: Provided is a logical operation element that performs logical operations on three or more inputs using a single unique device. The logical operation element 30 is provided with an electrode 5A and the other electrode 5B that are provided to have a nanogap, a metal nanoparticle 7 arranged between the electrode 5A and the other electrode 5B in insulated state, and a plurality of gate electrodes 5C, 5D, 11, 11A, 11B for adjusting a charge of the metal nanoparticle 7. Electric current that flows between the electrode 5A and the other electrode 5B is controlled in accordance with the voltage applied to three or more of the gate electrodes 5C, 5D, 11, 11A, 11B.
    Type: Application
    Filed: March 9, 2014
    Publication date: January 28, 2016
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka Majima, Toshiharu Teranishi, Kazuhiko Matsumoto, Kenzo Maehashi, Tomofumi Susaki, Yasuhide Ohno, Kosuke Matsuzaki, Guillaume Hubert Frederic Hackenberger
  • Patent number: 9240561
    Abstract: This invention is to provide a nanodevice, which is combined with an electronic device such as a diode, tunnel device and MOS transistor, integrated circuit and manufacturing method of the nanodevice. A nanodevice includes: a first insulating layer 2; one electrode 5A and the other electrode 5B provided to have a nanogap on the first insulating layer 2; a metal nanoparticle or a functional molecule provided between the one electrode 5A and the other electrode 5B; a second insulating layer 8 provided on the first insulating layer 2, and on the one electrode 5A and the other electrode 5B to embed the metal nanoparticle or the functional molecule. The second insulating layer works as a passivating layer.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: January 19, 2016
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka Majima, Toshiharu Teranishi, Kazuhiko Matsumoto, Kenzo Maehashi, Yasuo Azuma, Yasuhide Ohno, Kosuke Maeda, Guillaume Hackenberger
  • Publication number: 20150014624
    Abstract: This invention is to provide a nanodevice, which is combined with an electronic device such as a diode, tunnel device and MOS transistor, integrated circuit and manufacturing method of the nanodevice. A nanodevice includes: a first insulating layer 2; one electrode 5A and the other electrode 5B provided to have a nanogap on the first insulating layer 2; a metal nanoparticle or a functional molecule provided between the one electrode 5A and the other electrode 5B; a second insulating layer 8 provided on the first insulating layer 2, and on the one electrode 5A and the other electrode 5B to embed the metal nanoparticle or the functional molecule. The second insulating layer works as a passivating layer.
    Type: Application
    Filed: February 27, 2013
    Publication date: January 15, 2015
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yutaka Majima, Toshiharu Teranishi, Kazuhiko Matsumoto, Kenzo Maehashi, Yasuo Azuma, Yasuhide Ohno, Kosuke Maeda, Guillaume Hackenberger
  • Publication number: 20110214983
    Abstract: A method for controlling a structure of a nano-scale substance may include irradiating a mixture of low-dimensional quantum structures having a nano-scale with an electromagnetic wave in an oxygen atmosphere, to thereby selectively oxidize a low-dimensional quantum structure having a density of states resonating with the electromagnetic wave used for the irradiation. The method allows a low-dimensional quantum structure having a specific structure to be selectively removed from the mixture of low-dimensional quantum structures having a nano-scale.
    Type: Application
    Filed: May 10, 2011
    Publication date: September 8, 2011
    Inventors: Kenzo Maehashi, Koichi Inoue, Kazuhike Matsumoto, Yasuhide Ohno
  • Publication number: 20110209980
    Abstract: A method for controlling a structure of a nano-scale substance may include irradiating a mixture of low-dimensional quantum structures having a nano-scale with an electromagnetic wave in an oxygen atmosphere, to thereby selectively oxidize a low-dimensional quantum structure having a density of states resonating with the electromagnetic wave used for the irradiation. The method allows a low-dimensional quantum structure having a specific structure to be selectively removed from the mixture of low-dimensional quantum structures having a nano-scale.
    Type: Application
    Filed: May 10, 2011
    Publication date: September 1, 2011
    Inventors: Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto, Yasuhide Ohno
  • Patent number: 7964066
    Abstract: A method for controlling a structure of a nano-scale substance, which comprises irradiating a mixture of low-dimensional quantum structures having a nano-scale with an electromagnetic wave in an oxygen atmosphere, to thereby selectively oxidize a low-dimensional quantum structure having a density of states resonating with the electromagnetic wave used for the irradiation. The method allows a low-dimensional quantum structure having a specific structure to be selectively disappeared from the mixture of low-dimensional quantum structures having a nano-scale.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: June 21, 2011
    Assignee: Japan Science and Technology Agency
    Inventors: Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto, Yasuhide Ohno
  • Publication number: 20070287202
    Abstract: A method of an embodiment of the present of the present application is for producing a nano-scale low dimensional quantum structure. The method includes: bringing a catalyst on a substrate into contact with vaporized carbon source, and emitting an electromagnetic wave to the catalyst so as to form single-walled carbon nano-tubes on the catalyst. As a result, it is possible to form the nano-scale low-dimensional quantum structure on a target area.
    Type: Application
    Filed: August 30, 2005
    Publication date: December 13, 2007
    Inventors: Kenzo Maehashi, Yasuyuki Fujiwara, Koichi Inoue, Kazuhiko Matsumoto, Yasuhide Ohno
  • Publication number: 20070004231
    Abstract: A method for controlling a structure of a nano-scale substance, which comprises irradiating a mixture of low-dimensional quantum structures having a nano-scale with an electromagnetic wave in an oxygen atmosphere, to thereby selectively oxidize a low-dimensional quantum structure having a density of states resonating with the electromagnetic wave used for the irradiation. The method allows a low-dimensional quantum structure having a specific structure to be selectively disappeared from the mixture of low-dimensional quantum structures having a nano-scale.
    Type: Application
    Filed: August 18, 2004
    Publication date: January 4, 2007
    Inventors: Kenzo Maehashi, Koichi Inoue, Kazuhiko Matsumoto, Yasuhide Ohno