Patents by Inventor Akira Masuko

Akira Masuko 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: 20200017178
    Abstract: An anti-biofouling method which suppresses biofouling in water includes a preparation step of using a copper alloy-made anti-biofouling object member immersed in the water as a cathode electrode, and immersing and arranging an anode electrode member serving as a counter electrode of the anti-biofouling object member in the water, and a current supplying step of supplying DC current between the anti-biofouling object member and the anode electrode member.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Applicants: IHI Corporation, JAPAN MARINE UNITED CORPORATION
    Inventors: Yuichi IAI, Kenichi AKAMINE, Natsuki YAKABE, Akira MASUKO, Ichiro AMAYA, Yuhki SAITOH
  • Publication number: 20080158130
    Abstract: A plurality of driving circuits are arranged along a liquid crystal panel and drive it. A signal generation circuit supplies a signal to one of the plurality of driving circuits. A level-shift circuit is provided in the driving circuit to receive the signal and expands the logic level of the signal. An interconnection connects the output terminal of the level-shift circuit to the plurality of driving circuits except the driving circuit to receive the signal.
    Type: Application
    Filed: October 24, 2007
    Publication date: July 3, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akira Masuko, Satoshi Suzuki
  • Publication number: 20080100602
    Abstract: A liquid-crystal display apparatus includes: a liquid-crystal panel that includes pixels that are arranged at positions where a plurality of row selection lines and a plurality of line selection lines intersect, the pixels being driven by activating thin-film transistors connected to the row selection lines and the line selection lines; a row driver that generates a voltage based on gradation data and applies the voltage to the row selection lines by inverting a polarity of the voltage every “n” sets of the row selection lines; and a line driver that drives every “m” sets of the line selection lines in one of a first drive order and a second drive order, wherein the line driver repeatedly performs an operation including: driving the line selection lines in the first drive order for “k” flames; and driving the line selection lines in the second drive order for “k” flames.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tooru Arai, Akira Masuko
  • Publication number: 20060158421
    Abstract: A display device is provided with pixels, data lines to supply the pixels with video signals, a shift register circuit to select the pixels, a power source to generate a voltage, a detection circuit to detect a starting-up portion of the voltage, and a driver circuit. The driver circuit includes output terminals connected to the pixels and output buffer circuits. The output buffer circuits are connected to a reference potential, make the output terminals have high impedance states in response to the starting-up portion of the voltage detected by the detection circuit and subsequently supply a non-driving voltage and then a driving voltage to turn off and on the pixels selected by the shift register circuit, respectively.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 20, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Akira Masuko
  • Patent number: 6186085
    Abstract: A method for reducing frictional-resistance at a hull (2) of a ship (1), characterized in that the method comprising a step of ejecting micro-bubbles (8) having predetermined diameters; wherein the micro-bubbles (8) are ejected into water from a position adjacent to the starting point of desired stream line (F.L.) of water and from the position where the static pressure is low; the stream line (F.L.) being directed, from the submerged shallow position at a stem portion (4) of the ship's hull (2), to the ship's bottom (5) along both side surfaces of the ship's hull (2), so that the ejected micro-bubbles (8) are transferred to the ship's bottom (5) along the stream line (F.L.); whereby the micro-bubbles (8) are distributed at at least a part of the circumferential area of the submerged portion of the hull (2), thus reducing frictional-resistance at a hull (2) of a ship (1) while cruising.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: February 13, 2001
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Hiroharu Kato, Yoshiaki Takahashi, Yuki Yoshida, Akira Masuko, Osamu Watanabe
  • Patent number: 5900853
    Abstract: A signal line driver is used for a liquid crystal display device including a matrix array of 230.times.720 pixels arranged in a predetermined color order for each row, 230 scanning lines for selecting the row of the pixels, and 720 signal lines for setting the potentials of the pixels of the selected row. The signal line driver has three bus lines for receiving color video signals of three primary colors.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: May 4, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kan Shimizu, Akira Masuko, Yoshimasa Adachi
  • Patent number: 5729246
    Abstract: A drive circuit for a liquid crystal display device, includes: an operational amplifier supplied at one input terminal with display data used for liquid crystal display; a capacitor connected between the other input terminal of the operational amplifier and the external output terminal; and, e.g., a first switching element provided at the input side of the operational amplifier and supplied with a first voltage, a second switching element connected to the external output terminal at the output side of the operational amplifier and supplied with a second voltage and a third switching element provided between the output terminal of the operational amplifier and the external output terminal.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: March 17, 1998
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Akira Masuko
  • Patent number: 5132614
    Abstract: A semiconductor device in which a semiconductor chip has a plurality of output terminals which are connected to a common node outside of the chip itself and are arranged into at least one group. A selection circuit disposed within the semiconductor selects one output terminal from among the output terminals in the group and allows data to be supplied only to the selected terminal. After testing, the output terminals are disconnected from one another to allow the chip to function properly.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: July 21, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Aiichiro Sakumoto, Akira Masuko, Ken Yamamoto