Patents by Inventor Takaaki Matsubara

Takaaki Matsubara 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: 20210304937
    Abstract: A controller for a linear solenoid valve is configured to: calculate an average value of an exciting current within a period including a natural number multiple of the dither cycle as an average current value; execute a feedback control on a control value of the pulse width modulation signal such that a target value of the exciting current and the average current value match; and calculate a dither correction amount by multiplying a ratio between the control value of the pulse width modulation signal obtained by the feedback control and the average current value by a dither current value that is a current value corresponding to the dither correction amount and calculating the dither correction amount such that an increase in the exciting current due to the dither correction amount is canceled out by a decrease in the exciting current due to the dither correction amount within one dither cycle.
    Type: Application
    Filed: January 15, 2021
    Publication date: September 30, 2021
    Inventors: Takaaki TOKURA, Takeshi YASUDA, Katsumi KONO, Tomohiro KONDO, Yasuhiro TANAKA, Masanori MATSUBARA, Tomoyuki KOIKE
  • Publication number: 20210147400
    Abstract: Provided is a novel process for producing a (2S)-2-[(1H-pyrazol-1-yl)methyl]-1,3-oxazinane derivative. More specifically, provided is a process for producing a (2S)-2-[(1H-pyrazol-1-yl)methyl]-1,3-oxazinane derivative represented by formula (1): the process comprising reacting 3-aminopropan-1-ol with glyoxylic acid.
    Type: Application
    Filed: July 11, 2018
    Publication date: May 20, 2021
    Inventors: Takaaki MATSUBARA, Hiroki URABE, Ryo SUZUKI, Aya FUTAMURA, Ryo KINOSHITA, Nobutaka HATTORI, Hideaki TABUSE, Koreaki IMURA, Norikazu OTAKE
  • Patent number: 6638036
    Abstract: A ventilating device capable of being easily assembled and disassembled, wherein, after setting a blower for exhaust and a blower for air supply on an electric motor (55), the electric motor is installed in an exhaust flow path (122) of a silencer box (100). The inside of the silencer box (100) is divided by partitions into the exhaust flow paths (122, 123) and air supply flow paths (132, 134) and sound absorbing material is installed on the wall surfaces of the air flow paths (122, 123, 132 and 134). Each blower aligns with each of the air flow paths when an air blow device is inserted, and an opening into which the air blow device is inserted is covered by a cover (150). The blowers can be assembled and disassembled from the side and the air blow devices can be inserted from the upper side.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: October 28, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Kobayashi, Tomoyuki Shibuya, Koji Okada, Takaaki Matsubara, Haruo Hirakawa