Patents by Inventor Tetsu Negishi

Tetsu Negishi 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: 8252164
    Abstract: The present invention provides methods and systems for nanowire alignment and deposition. Energizing (e.g., an alternating current electric field) is used to align and associate nanowires with electrodes. By modulating the energizing, the nanowires are coupled to the electrodes such that they remain in place during subsequent wash and drying steps. The invention also provides methods for transferring nanowires from one substrate to another in order to prepare various device substrates. The present invention also provides methods for monitoring and controlling the number of nanowires deposited at a particular electrode pair, as well as methods for manipulating nanowires in solution.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: August 28, 2012
    Assignees: Nanosys, Inc., Sharp Kabushiki Kaisha
    Inventors: Samuel Martin, Xiangfeng Duan, Katsumasa Fujii, James M. Hamilton, Hiroshi Iwata, Francisco Leon, Jeffrey Miller, Tetsu Negishi, Hiroshi Ohki, J. Wallace Parce, Cheri X. Y. Pereira, Paul John Schuele, Akihide Shibata, David P. Stumbo, Yasunobu Okada
  • Publication number: 20110284380
    Abstract: The present invention provides methods and systems for nanowire alignment and deposition. Energizing (e.g., an alternating current electric field) is used to align and associate nanowires with electrodes. By modulating the energizing, the nanowires are coupled to the electrodes such that they remain in place during subsequent wash and drying steps. The invention also provides methods for transferring nanowires from one substrate to another in order to prepare various device substrates. The present invention also provides methods for monitoring and controlling the number of nanowires deposited at a particular electrode pair, as well as methods for manipulating nanowires in solution.
    Type: Application
    Filed: May 23, 2011
    Publication date: November 24, 2011
    Inventors: Samuel MARTIN, Xiangfeng Duan, Katsumasa Fujii, James M. Hamilton, Hiroshi Iwata, Francisco Leon, Jeffrey Miller, Tetsu Negishi, Hiroshi Ohki, J. Wallace Parce, Cheri X.Y. Pereira, Paul John Schuele, Akihide Shibata, David P. Stumbo, Yasunobu Okada
  • Publication number: 20110254043
    Abstract: To facilitate electrode connections and achieve a high light emitting efficiency, a rod-like light-emitting device includes a semiconductor core of a first conductivity type having a rod shape, and a semiconductor layer of a second conductivity type formed to cover the semiconductor core. The outer peripheral surface of part of the semiconductor core is exposed.
    Type: Application
    Filed: October 14, 2010
    Publication date: October 20, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tetsu NEGISHI, Akihide SHIBATA, Satoshi MORISHITA, Kenji KOMIYA, Hiroshi IWATA, Akira TAKAHASHI
  • Patent number: 7968474
    Abstract: The present invention provides methods and systems for nanowire alignment and deposition. Energizing (e.g., an alternating current electric field) is used to align and associate nanowires with electrodes. By modulating the energizing, the nanowires are coupled to the electrodes such that they remain in place during subsequent wash and drying steps. The invention also provides methods for transferring nanowires from one substrate to another in order to prepare various device substrates. The present invention also provides methods for monitoring and controlling the number of nanowires deposited at a particular electrode pair, as well as methods for manipulating nanowires in solution.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: June 28, 2011
    Assignees: Nanosys, Inc., Sharp Kabushiki Kaisha
    Inventors: Samuel Martin, Xiangfeng Duan, Katsumasa Fujii, James M. Hamilton, Hiroshi Iwata, Francisco Leon, Jeffrey Miller, Tetsu Negishi, Hiroshi Ohki, J. Wallace Parce, Cheri X. Y. Pereira, Paul John Schuele, Akihide Shibata, David P. Stumbo, Yasunobu Okada
  • Publication number: 20110089850
    Abstract: In a light emitting device, a P-type first region (506) and a P-type third region (508) are placed on both sides of an N-type second region (507) of a rod-like light emitting element (505). Therefore, even if connection of the first, third regions (506, 508) of the rod-like light emitting element (505) relative to the first, third electrodes (1, 3) is reversed, a diode polarity relative to the first, third electrodes (501, 503) is not reversed, making it possible to effectuate normal light emission. Thus, a connection of the first, third regions (506, 508) relative to the first, third electrodes (501, 503) may be reversed during a manufacturing process, making it unnecessary to provide marks or configurations for discrimination of orientation of the rod-like light emitting element (505), so that the manufacturing process can be simplified and manufacturing cost can be cut down.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 21, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akihide Shibata, Tetsu Negishi, Satoshi Morishita, Kenji Komiya, Hiroshi Iwata, Akira Takahashi, Yoshifumi Yaoi
  • Publication number: 20110058126
    Abstract: With reference to a direction perpendicular to a direction of forming electrodes to which a voltage can be applied, fine structures are each arranged within ±5 degrees at a substantially even interval, and a semiconductor element is formed by using the fine structures. On an insulating substrate, at least two electrodes are arranged at a predetermined interval, and there are formed one or more fine structure arranging regions, each of which is formed by a unit of the two electrodes. A semiconductor element electrode is made in contact with the plurality of the fine structures, each having two ends in contact with the two electrodes and a length in a longitudinal direction of a nano order to a micron order, and arranged within ±5 degrees with reference to the direction perpendicular to the direction of forming the electrodes.
    Type: Application
    Filed: February 10, 2009
    Publication date: March 10, 2011
    Inventors: Yasunobu Okada, Akihide Shibata, Yoshiharu Nakajima, Hiroshi Iwata, Ai Naitou, Yutaka Takafuji, Tetsu Negishi
  • Publication number: 20080224123
    Abstract: The present invention provides methods and systems for nanowire alignment and deposition. Energizing (e.g., an alternating current electric field) is used to align and associate nanowires with electrodes. By modulating the energizing, the nanowires are coupled to the electrodes such that they remain in place during subsequent wash and drying steps. The invention also provides methods for transferring nanowires from one substrate to another in order to prepare various device substrates. The present invention also provides methods for monitoring and controlling the number of nanowires deposited at a particular electrode pair, as well as methods for manipulating nanowires in solution.
    Type: Application
    Filed: November 9, 2007
    Publication date: September 18, 2008
    Inventors: Samuel Martin, Xiangfeng Duan, Katsumasa Fujii, James M. Hamilton, Hiroshi Iwata, Francisco Leon, Jeffrey Miller, Tetsu Negishi, Hiroshi Ohki, J. Wallace Parce, Cheri X.Y. Pereira, Paul John Schuele, Akihide Shibata, David P. Stumbo, Yasunobu Okada