Patents by Inventor Takahiro Koyama

Takahiro Koyama 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: 20190297922
    Abstract: A microwave-heating system irradiates sealed packaged foods with microwaves to heat the packaged foods at 100° C. or higher for heat sterilization. The microwave-heating system includes a microwave generator to irradiate the packaged foods with microwaves of 2450 MHz in a multi-mode and a microwave generator to irradiate the packaged foods in a waveguide with microwaves of 915 MHz in a single-mode.
    Type: Application
    Filed: March 12, 2019
    Publication date: October 3, 2019
    Applicant: MORINAGA MILK INDUSTRY CO., LTD.
    Inventors: Yasuhiro Takeda, Atsushi Furuya, Takahiro Koyama, Hiroyuki Ikeda, Junichi Otsuji, Shuji Obi, Yasuji Yamamoto, Junichi Kodama
  • Patent number: 10415443
    Abstract: There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: September 17, 2019
    Assignee: KUBOTA Corporation
    Inventors: Kentaro Nagai, Takahiro Yamazaki, Takahito Hamasaki, Hideyuki Goto, Hiroki Oso, Hideyuki Koyama, Akira Tanaka, Yoshinori Tanaka
  • Publication number: 20190279845
    Abstract: An antenna device according to an exemplary embodiment radiates electromagnetic waves. In the antenna device, a dielectric window is in contact with a lower wall of a first waveguide, the first waveguide is provided between the dielectric window and a second waveguide and extends in a direction crossing a tube axis of the second waveguide, a dispersion part in the first waveguide disperses the electromagnetic wave in the first waveguide, a coaxial conversion part causes propagation of the electromagnetic waves dispersed by the dispersion part to direct to a side of the dielectric window, and a front surface of the dielectric window does not have irregularities.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Naoki MATSUMOTO, Yuki KAWADA, Ayako ITO, Koji KOYAMA, Takahiro SENDA, Takashi SUZUKI, Yoshikazu AZUMAYA
  • Publication number: 20190251743
    Abstract: A display method is a display method performed by a display device that operates in conjunction with a mobile object, and includes: determining which one of first surrounding information, which is video showing a surrounding condition of the mobile object and is generated using two-dimensional information, and second surrounding information, which is video showing the surrounding condition of the mobile object and is generated using three-dimensional data, is to be displayed, based on a driving condition of the mobile object; and displaying the one of the first surrounding information and the second surrounding information that is determined to be displayed.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Tatsuya KOYAMA, Takahiro NISHI, Toshiyasu SUGIO, Tadamasa TOMA, Satoshi YOSHIKAWA, Toru MATSUNOBU
  • Publication number: 20190238066
    Abstract: Provided are a power conversion device and a system using the same, which can reduce loss of each semiconductor element in a power conversion circuit and enable high efficiency of a device controlled by the power conversion device. The power conversion device includes a direct current (DC) power source; and a full-bridge circuit having first upper and lower arms having an upper element and a lower element and second upper and lower arms having an upper element and a lower element, in which the first upper and lower arms and the second upper and lower arms are electrically connectable to a device, and ON resistances of the upper element of the first upper and lower arms and the lower element of the second upper and lower arms are smaller than ON resistances of the lower element of the first upper and lower arms and the upper element of the second upper and lower arms.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 1, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Wataru HATSUSE, Masaki KOYAMA, Shuhei NAGATA, Takahiro SUZUKI
  • Patent number: 10364083
    Abstract: The break-off spout of the present invention includes: a spout main body (110) having a break-off section (150) formed via a weakened section (121) such that an annular section (152) having a through-hole formed therein protrudes to the tip side; and a pair of left and right cover members (160) integrally formed with the spout main body (110) via hinge sections provided below the weakened section (121). The pair of left and right cover members (160) are formed in a shape such that, when the cover members are engaged with each other, the cover members cover a portion of the spout main body (110) above the hinge sections including the break-off section (150). An insertion port (164) through which deformation means that deforms the annular section (152) and blocks the through-hole can be inserted is provided in the cover members (160).
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: July 30, 2019
    Assignee: Orihiro Engineering Co., Ltd.
    Inventors: Takahiro Akaogi, Masataka Tsuruta, Yuu Koyama
  • Publication number: 20190227020
    Abstract: Provided is an electrostatic capacitance detection device including: an electrode pair including a pair of electrodes, the electrode pair being arranged inside a compressor configured to compress refrigerant; a capacitor being connected in series to the electrode pair; an inverter having one of power lines connected to one end of series-connected electrode pair and capacitor, and is configured to drive the compressor, the power lines being used for driving the compressor; and a voltage detecting unit configured to measure a voltage between the pair of electrodes of the electrode pair.
    Type: Application
    Filed: June 8, 2017
    Publication date: July 25, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Taichiro TAMIDA, Takahiro INOUE, Takashi HASHIMOTO, AKIHIKO IWATA, Shuhei KOYAMA, Takahiko KOBAYASHI
  • Publication number: 20190204076
    Abstract: A three-dimensional data creation method for use in a vehicle including a sensor and a data receiver that transmits and receives three-dimensional data to and from an external device. The three-dimensional data creation method includes: creating second three-dimensional data based on information detected by the sensor and first three-dimensional data received by the data receiver; and transmitting, to the external device, third three-dimensional data that is part of the second three-dimensional data.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Inventors: Takahiro NISHI, Tadamasa TOMA, Toshiyasu SUGIO, Toru MATSUNOBU, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Publication number: 20190186386
    Abstract: There is provided an engine stopping device including a stopping solenoid, where an operating shaft, interlocked to a control rack of a fuel injection pump, is rotatably supported by an engine case in a pass-through manner. The control rack is forcibly movable to a stopping position by an action of the stopping solenoid on an operation arm provided for a projecting portion of the operating shaft in an integrally rotatable manner. An extending-retracting rod of the stopping solenoid and the operation arm are interlocked by fitting engagement between a pin provided for the extending-retracting rod and a cut-out portion of the operation arm. The cut-out portion is configured in a shape elongated along a direction perpendicular to a movement trajectory of the extending-retracting rod.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 20, 2019
    Inventors: Akira TANAKA, Hiroki OSO, Yoshinori TANAKA, Hideyuki KOYAMA, Takahiro YAMAZAKI, Nobuyoshi OKADA
  • Publication number: 20190189006
    Abstract: A three-dimensional information processing method includes: obtaining, via a communication channel, map data that includes first three-dimensional position information; generating second three-dimensional position information from information detected by a sensor; judging whether one of the first three-dimensional position information and the second three-dimensional position information is abnormal by performing, on one of the first three-dimensional position information and the second three-dimensional position information, a process of judging whether an abnormality is present; determining a coping operation to cope with the abnormality when one of the first three-dimensional position information and the second three-dimensional position information is judged to be abnormal; and executing a control that is required to perform the coping operation.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventors: Tadamasa TOMA, Takahiro NISHI, Toshiyasu SUGIO, Toru MATSUNOBU, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Publication number: 20190181608
    Abstract: In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part. The semiconductor laser includes an electrode provided over the bottom surface of each separation groove with an insulating layer being interposed therebetween.
    Type: Application
    Filed: June 22, 2017
    Publication date: June 13, 2019
    Inventors: TOMOKI ONO, MIKIO TAKIGUCHI, TOYOHARU OOHATA, TAKAHIRO KOYAMA
  • Publication number: 20190173262
    Abstract: In a semiconductor laser according to an embodiment of the present disclosure, a ridge part has a structure in which a plurality of gain regions and a plurality of Q-switch regions are each disposed alternately with each of separation regions being interposed therebetween in an extending direction of the ridge part. The separation regions each have a separation groove that separates from each other, by a space, the gain region and the Q-switch region adjacent to each other. The separation groove has a bottom surface at a position, in a second semiconductor layer, higher than a part corresponding to a foot of each of both sides of the ridge part.
    Type: Application
    Filed: July 12, 2017
    Publication date: June 6, 2019
    Inventors: TOMOKI ONO, TOYOHARU OOHATA, TAKAHIRO KOYAMA, MIKIO TAKIGUCHI, MASAYUKI TANAKA
  • Publication number: 20190170130
    Abstract: Controllability of a linear motor or a compressor is improved. There is provided a linear motor system that includes: an armature having magnetic poles and winding wires; a mover having a permanent magnet; and a power conversion unit that outputs AC power to the winding wires, in which the mover and the armature are relatively movable, and the mover or the armature is connected to an elastic body. The linear motor system further includes: a position detection unit that detects and outputs the position of the mover with respect to the armature, a position estimation, or a current detection unit that outputs the value of current flowing through the winding wires; and a control unit that controls the output of the power conversion unit on the basis of the output of the position detection unit, the output of the position estimation unit, or the output of the current detection unit.
    Type: Application
    Filed: April 11, 2017
    Publication date: June 6, 2019
    Applicant: Hitachi, Ltd.
    Inventors: Takahiro SUZUKI, Shuhei NAGATA, Wataru HATSUSE, Masaki KOYAMA
  • Publication number: 20190164332
    Abstract: A three-dimensional data creation method includes: creating first three-dimensional data from information detected by a sensor; receiving encoded three-dimensional data that is obtained by encoding second three-dimensional data; decoding the received encoded three-dimensional data to obtain the second three-dimensional data; and merging the first three-dimensional data with the second three-dimensional data to create third three-dimensional data.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 30, 2019
    Inventors: Toru MATSUNOBU, Takahiro NISHI, Tadamasa TOMA, Toshiyasu SUGIO, Satoshi YOSHIKAWA, Tatsuya KOYAMA
  • Patent number: 10288117
    Abstract: To provide a motor system that can control the position of a control object in multiple directions while suppressing the number of required switching elements. A motor system includes: a power conversion device including first, second, and third up-down arms each including two switching elements connected in series; a control object; and a first load including a magnetic pole tooth facing the control object, and a winding wound around the magnetic pole tooth. The motor system includes a second load including two magnetic pole teeth facing each other in a second direction with the control object therebetween, and a winding wound around one or both of the magnetic pole teeth. The power conversion device provides a force with respect to a first direction to the control object through an output to the first load, and provides a force with respect to the second direction to the control object through an output to the second load.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: May 14, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Suzuki, Yasuaki Aoyama, Shuhei Nagata, Masaki Koyama
  • Publication number: 20190129032
    Abstract: A distance measurement apparatus including at least one measurement unit, in which the measurement unit includes: a voltage level converter that applies an arbitrary bias to a voltage obtained on the basis of an output from a light receiver to offset a level of the voltage; an amplifier that amplifies a voltage output from the voltage level converter; and a measurement section that measures a timing at which an output from the amplifier reaches a predetermined threshold.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 2, 2019
    Inventors: TAKAHIRO KOYAMA, TOYOHARU OOHATA, TOMOKI ONO
  • Publication number: 20190033451
    Abstract: A ranging device provided with a light projecting unit for projecting a reference pulse set row including a main pulse and at least one sub pulse, a light receiving unit for receiving a reflected pulse set row obtained by reflection of the reference pulse set row by an object to be measured, an identifying unit for identifying the reflected pulse set row corresponding to the reference pulse set row, and a calculating unit for calculating a distance to the object to be measured on the basis of a delay time difference between the reference pulse set row and the reflected pulse set row corresponding to the reference pulse set row, in which the light projecting unit is configured to project a plurality of reference pulse set rows having different pulse intervals.
    Type: Application
    Filed: October 26, 2016
    Publication date: January 31, 2019
    Inventors: TAKAHIRO KOYAMA, TOYOHARU OOHATA, TOMOKI ONO
  • Patent number: 10192807
    Abstract: The invention is provided with a metal base plate including a first surface and a second surface and a cooling case including a bottom wall and a side wall formed around the bottom wall, in which one end of the side wall being joined to a second surface side of the metal base plate, and a coolant can be circulated in a space enclosed by the metal base plate, the bottom wall, and the side wall, in which the cooling case has an inlet portion and an outlet portion for the coolant which are connected to either the bottom wall or the side wall and disposed along a peripheral edge of the second surface of the metal base plate, and includes a first flange disposed at an inlet opening side of the inlet portion and a second flange disposed at an outlet opening side of the outlet portion.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: January 29, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Takahiro Koyama, Hiromichi Gohara
  • Publication number: 20180259629
    Abstract: Provided is a correction device including: a photon number counting unit that counts a photon number on the basis of an output signal output from a light receiving unit; a correction value acquiring unit that acquires a correction value corresponding to the photon number; and a correction unit that performs correction based on the correction value.
    Type: Application
    Filed: June 7, 2016
    Publication date: September 13, 2018
    Inventors: TOYOHARU OOHATA, TAKAHIRO KOYAMA, TOMOKI ONO
  • Patent number: D827593
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 4, 2018
    Assignee: Fuji Electric Co., Ltd
    Inventors: Shin Soyano, Yoshikazu Takamiya, Keiichi Higuchi, Takahiro Koyama