Patents by Inventor Naoya Watanabe

Naoya Watanabe 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: 20170060438
    Abstract: The present invention makes it possible to form a circuit configuration that is capable of executing a keyword search at an increased speed while suppressing an increase in the memory capacity of a content-addressable memory. A semiconductor device according to an aspect of the present invention searches an input data string for a predesignated keyword, and includes a first content-addressable memory that stores a partial keyword corresponding to a predetermined number of data beginning with the first data of the keyword, a second content-addressable memory that stores the entirety of the keyword, and a control circuit that is coupled to the first content-addressable memory and to the second content-addressable memory. When a portion matching the partial keyword is detected in the input data string by a search in the first content-addressable memory, the second content-addressable memory executes a search on search data extracted from the input data string.
    Type: Application
    Filed: August 4, 2016
    Publication date: March 2, 2017
    Inventors: Futoshi IGAUE, Kenji YOSHINAGA, Naoya WATANABE, Mihoko AKIYAMA
  • Publication number: 20170062051
    Abstract: The consumption current of a TCAM device is reduced. A semiconductor device includes multiple sub-arrays each including a TCAM cell array. Each sub-array searches the corresponding part of the input search data. Each sub-array outputs the search result indicative of a match for every entry without searching, when the corresponding first control signal is activated.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 2, 2017
    Inventors: Naoya WATANABE, Futoshi IGAUE
  • Patent number: 9547382
    Abstract: A first cabinet comprising a first display module and a second cabinet comprising a second display module are provided. A switching is allowed between: a first state in which the first cabinet is placed on top of the second display module and the first display module faces outside, and a second state in which the first cabinet and the second cabinet are arranged next to each other and the first display module and the second display module face outside. A first screen to be displayed by the first display module and a second screen to be displayed by the second display module are stored and a screen switching operation is detected. Displaying of the first screen on the first display module is canceled and the second screen is displayed on the first display module, when the screen switching operation is detected in the first state.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 17, 2017
    Assignee: KYOCERA CORPORATION
    Inventors: Akiko Inami, Naoya Watanabe
  • Publication number: 20160322282
    Abstract: Provided are a through electrode including an organic side-wall insulating film, capable of eliminating a barrier layer and achieving satisfactory mechanical reliability and electrical reliability and a manufacturing method thereof, and a semiconductor device and a manufacturing method thereof. According to one aspect of the present invention, a through electrode disposed in a semiconductor substrate is provided, including: a copper layer in the semiconductor substrate; and a side-wall insulating film that is disposed between the copper layer and the semiconductor substrate so as to be in contact with the copper layer and the semiconductor substrate, the side-wall insulating film being represented by the following chemical formula (1).
    Type: Application
    Filed: October 30, 2015
    Publication date: November 3, 2016
    Inventors: Masahiro AOYAGI, Tung Thanh BUI, Naoya WATANABE, Fumiki KATO, Katsuya KIKUCHI
  • Patent number: 9400522
    Abstract: A portable terminal apparatus is provided, which includes a first cabinet having a first display surface, a second cabinet having a second display surface, a support mechanism which supports the first and second cabinets to be switchable between first and second arrangement states which are different in a relative position between the first and second display surfaces, and a control unit which controls a display mode of the first and second display surfaces according to the switching between the first and second arrangement states.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: July 26, 2016
    Assignee: KYOCERA Corporation
    Inventors: Akiko Inami, Naoya Watanabe
  • Publication number: 20160005465
    Abstract: The present invention provides a content addressable memory capable of higher frequency operation than conventional. When a search enable signal supplied from a search control circuit is asserted, each of search line drivers transfers search data to each CAM cell of a CAM memory array via a search line pair. The search line enable signal is transmitted to the search line drivers via a single control signal line coupled to the search control circuit. The control signal line is coupled to the search line drivers in such a manner that the search line enable signal passes through coupling nodes between the search line drivers and the control signal line in an arrangement order of the search line drivers from the side far away as viewed from match amplifiers.
    Type: Application
    Filed: September 10, 2015
    Publication date: January 7, 2016
    Inventor: Naoya WATANABE
  • Publication number: 20150302996
    Abstract: A photoelectrode for dye-sensitized solar cells of the present invention includes a light-transmitting substrate including a transparent electroconductive layer formed on a light-transmitting base; an adhesion layer formed on the transparent electroconductive layer, the adhesion layer being configured of an electroconductive portion formed of electroconductive particles and a coating layer formed by applying metal alkoxide thereon to cover the electroconductive particles; and a photoelectric conversion layer formed on the adhesion layer by using a photoelectric conversion material in which a sensitizing dye is supported on a functional semiconductor.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 22, 2015
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDO, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA
  • Patent number: 9142295
    Abstract: A content addressable memory includes a memory array having a plurality of match lines extending in a first direction, a plurality of search lines extending in a second direction perpendicular to the first direction, and a plurality of memory cells, each disposed at points where the match lines and the search lines intersect. The content addressable memory also includes a plurality of search line drivers, each of the search line drivers being provided to drive the search lines based on search data; a search control circuit generating a search line enable signal, and including a first and a second transistor, the first transistor) for output the search line enable signal and the second transistor for receiving the search line enable signal; and a control signal wiring coupled to the search control circuit and transmitting the search line enable signal to each of the search line drivers.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 22, 2015
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Naoya Watanabe
  • Publication number: 20150235984
    Abstract: A method of manufacturing a semiconductor device according to the present invention comprises: a bump forming step of forming a bump electrode 100 on a semiconductor chip 1, the bump electrode 100 protruding in a substantially conical shape; a pad forming step of forming a pad electrode 200 on a substrate 10, the pad electrode 200 having a recess 210 with inner lateral surfaces thereof defining a substantially pyramidal shape or a prism shape; a pressing step of pressing the bump electrode 100 and the pad electrode 200 in a direction which brings them closer to each other, with the bump electrode 100 being inserted in the recess 210 so that the central axis of the bump electrode 100 and the central axis of the recess 210 coincide with each other; and an ultrasonic joining step of joining the bump electrode 100 and the pad electrode 200 by vibrating at least one of the bump electrode 100 and the pad electrode 200 using ultrasonic waves.
    Type: Application
    Filed: August 29, 2013
    Publication date: August 20, 2015
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Masahiro Aoyagi, Thanh Tung Bui, Motohiro Suzuki, Naoya Watanabe, Fumiki Kato, Lai Na Ma, Shunsuke Nemoto
  • Publication number: 20150228341
    Abstract: An entry including multiple bits of unit cells each storing data bit is coupled to a match line. The match line is supplied with a charging current having a restricted current value smaller than a match line current flowing in a one-bit miss state in one entry, but larger than a match line current flowing in an all-bit match state in one entry. A precharge voltage level of a match line is restricted to a voltage level of half a power supply voltage or smaller. Power consumption in a search cycle of a content addressable memory can be reduced, and a search operation speed can be increased.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 13, 2015
    Inventors: Naoya WATANABE, Isamu HAYASHI, Teruhiko AMANO, Fukashi MORISHITA, Kenji YOSHINAGA, Mihoko AKIYAMA, Shinya MIYAZAKI, Masakazu ISHIBASHI, Katsumi DOSAKA
  • Patent number: 9073077
    Abstract: A spray gun (1) forms a desired spray pattern by atomizing by means of atomizing air (A) a spray liquid which is sprayed from a liquid ejection port (44) opened/closed by a needle valve (4), and jetting pattern air (P) to the flow of spray mist of the atomized spray liquid. A nozzle taper angle (?1) is set in a range of 5° to 15°, and a cap taper angle (?2) is set in a range of 20° to 40°. Atomizing air (A) is jetted from a nozzle insertion hole (58) toward the center of a nozzle (3). Pattern air (P) is jetted in a spreading suppressed region (R) wherein the flow of the spray mist does not spread over an area greater than or equal to a predetermined cross-sectional area, to the flow of spray mist, and as a result, the spray mist is more uniformly sprayed over a wide range.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: July 7, 2015
    Assignee: FREUND CORPORATION
    Inventors: Kazuomi Unosawa, Shigemi Isobe, Takerou Adachi, Hirotsune Yasumi, Kouji Fukuda, Naoya Watanabe
  • Publication number: 20150187512
    Abstract: A counter electrode for a dye sensitized solar cell (20 ) includes a conductive layer (21 ); and a contact preventing layer (23 ) which is formed of an insulating substance, and is formed on one surface of the conductive layer (21 ).
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDO, Syougo MUROYA, Kouya NOZAWA, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA
  • Patent number: 9042148
    Abstract: An entry including multiple bits of unit cells each storing data bit is coupled to a match line. The match line is supplied with a charging current having a restricted current value smaller than a match line current flowing in a one-bit miss state in one entry, but larger than a match line current flowing in an all-bit match state in one entry. A precharge voltage level of a match line is restricted to a voltage level of half a power supply voltage or smaller. Power consumption in a search cycle of a content addressable memory can be reduced, and a search operation speed can be increased.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: May 26, 2015
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Naoya Watanabe, Isamu Hayashi, Teruhiko Amano, Fukashi Morishita, Kenji Yoshinaga, Mihoko Akiyama, Shinya Miyazaki, Masakazu Ishibashi, Katsumi Dosaka
  • Publication number: 20150055390
    Abstract: The present invention provides a content addressable memory capable of higher frequency operation than conventional. When a search enable signal supplied from a search control circuit is asserted, each of search line drivers transfers search data to each CAM cell of a CAM memory array via a search line pair. The search line enable signal is transmitted to the search line drivers via a single control signal line coupled to the search control circuit. The control signal line is coupled to the search line drivers in such a manner that the search line enable signal passes through coupling nodes between the search line drivers and the control signal line in an arrangement order of the search line drivers from the side far away as viewed from match amplifiers.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Inventor: Naoya WATANABE
  • Publication number: 20150015524
    Abstract: A first cabinet comprising a first display module and a second cabinet comprising a second display module are provided. A switching is allowed between: a first state in which the first cabinet is placed on top of the second display module and the first display module faces outside, and a second state in which the first cabinet and the second cabinet are arranged next to each other and the first display module and the second display module face outside. A first screen to be displayed by the first display module and a second screen to be displayed by the second display module are stored and a screen switching operation is detected. Displaying of the first screen on the first display module is canceled and the second screen is displayed on the first display module, when the screen switching operation is detected in the first state.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventors: Akiko INAMI, Naoya WATANABE
  • Patent number: 8902624
    Abstract: The present invention provides a content addressable memory capable of higher frequency operation than conventional. When a search enable signal supplied from a search control circuit is asserted, each of search line drivers transfers search data to each CAM cell of a CAM memory array via a search line pair. The search line enable signal is transmitted to the search line drivers via a single control signal line coupled to the search control circuit. The control signal line is coupled to the search line drivers in such a manner that the search line enable signal passes through coupling nodes between the search line drivers and the control signal line in an arrangement order of the search line drivers from the side far away as viewed from match amplifiers.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: December 2, 2014
    Assignee: Renesas Electronics Corporation
    Inventor: Naoya Watanabe
  • Patent number: 8866700
    Abstract: A first cabinet comprising a first display module and a second cabinet comprising a second display module are provided. A switching is allowed between: a first state in which the first cabinet is placed on top of the second display module and the first display module faces outside, and a second state in which the first cabinet and the second cabinet are arranged next to each other and the first display module and the second display module face outside. A first screen to be displayed by the first display module and a second screen to be displayed by the second display module are stored and a screen switching operation is detected. Displaying of the first screen on the first display module is canceled and the second screen is displayed on the first display module, when the screen switching operation is detected in the first state.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: October 21, 2014
    Assignee: Kyocera Corporation
    Inventors: Akiko Inami, Naoya Watanabe
  • Patent number: 8859279
    Abstract: A cell detachment method for detaching only a desired cell from a plurality of cells cultured on a substrate under predetermined culture environment conditions by using a scanning probe microscope having a probe, comprising: observing the plural cells; specifying the cell to be detached; moving the probe onto the specified cell; and pressing the prove against the specified cell with a predetermined force so as to detach the cell from the substrate.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 14, 2014
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Amiko Nihei, Masatsugu Shigeno, Yoshiharu Shirakawabe, Akira Inoue, Osamu Matsuzawa, Naoya Watanabe
  • Patent number: 8838364
    Abstract: A control device of a spark-ignition gasoline engine is provided. The control device includes a controller for operating the engine body by controlling at least a fuel injection valve, an ignition plug, and a fuel pressure variable mechanism. Depending on the engine load range, the controller sets the combustion mode to a compression-ignition mode or a spark-ignition mode. In each mode, the controller also controls the fuel pressure, and the timing of fuel injection and ignition. The controller may also performs external EGR control in each mode.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 16, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Kazuhiro Nagatsu, Masahisa Yamakawa, Kouhei Iwai, Yoshihisa Nou, Noriyuki Ota, Kazutoyo Watanabe, Naoya Watanabe, Hiroyuki Kurita, Shuji Oba, Tatsuya Koga
  • Publication number: 20140251427
    Abstract: A photoelectrode for a dye-sensitized solar cell includes, a sensitizer supported in a functional semiconductor layer of a photoelectrode structure provided with the functional semiconductor layer on a transparent conductive layer of a translucent substrate made by forming the transparent conductive layer on a plastic translucent support, in which the functional semiconductor layer includes a roll-pressed layer which is being in contact with the transparent conductive layer and roll-pressing traces extending in parallel with a roll-pressing treatment direction on a surface of the roll-pressed layer, and a surface roughness Ra in a first direction which is in parallel with the roll-pressing treatment direction is smaller than a surface roughness Ra in a second direction which is orthogonal to the first direction on a surface of the functional semiconductor layer.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDOU, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA