Patents by Inventor Katsuyuki Yamamoto

Katsuyuki Yamamoto 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: 20220196029
    Abstract: An axial fan includes a hub having a rotation shaft and configured to be driven to rotate and blades provided to the hub. The blades each have a front edge portion and a rear edge portion. A first blade section is a section of a portion between the front edge portion and the rear edge portion of each of the blades along a direction in which the blades rotate, and the first blade section is an area of each of the blades that is further inward than an outer periphery edge portion that is a most radially outer periphery in each of the blades. In the first blade section, the blades each have a projection portion and a first recess portion. The projection portion projects from a portion of a pressure surface of each of the blades. The first recess portion recedes from a portion of the pressure surface that is between the projection portion and the rear edge portion.
    Type: Application
    Filed: June 13, 2019
    Publication date: June 23, 2022
    Inventors: Katsuyuki YAMAMOTO, Takahide TADOKORO, Takuya TERAMOTO
  • Publication number: 20220186742
    Abstract: An axial fan includes a hub and blades. The hub has a rotating shaft, and is configured to be driven to rotate. The blades are provided to the hub, and each have a front edge portion and a rear edge portion. In a state in which the blades rotate to generate an airflow, the front edge portion is placed most upstream in the airflow, and the rear edge portion is placed most downstream in the airflow. In a shape of the blades rotated and projected onto a meridian plane that covers shapes of the blades and a shape of the rotating shaft, the front edge portion has an outline represented by a front-edge projected portion having a first recess portion formed in a recessed shape that recedes upstream in the airflow, the rear edge portion has an outline represented by a rear-edge projected portion having a second recess portion formed in a recessed shape that recedes upstream in the airflow, and the first recess portion has at least a portion that is formed further radially inside than is the second recess portion.
    Type: Application
    Filed: May 21, 2019
    Publication date: June 16, 2022
    Inventors: Takahide TADOKORO, Katsuyuki YAMAMOTO
  • Publication number: 20220159186
    Abstract: A control method of an image pickup device is provided. The image pickup device includes a camera, a display, and a touch panel that is overlapped with the display and detects at least a sliding touch operation. The display displays a video image captured by the camera in first, second and third modes. The control method includes: switching to the second mode by a first sliding touch operation in a first direction on the touch panel in the first mode; switching to the third mode by a second sliding touch operation in the first direction in the second mode; switching to the second mode by a third sliding touch operation in a second direction in the third mode; and switching to the first mode by a fourth sliding touch operation in the second direction in the second mode. The second direction is substantially opposite to the first direction.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: PANASONIC CORPORATION
    Inventors: Takashi ISHIHARA, Kazutaka YAMAMOTO, Katsuyuki ITO
  • Patent number: 11333166
    Abstract: A propeller fan includes a rotary shaft portion that rotates around an axial center and a plurality of blades disposed around an outer circumferential portion of the rotary shaft portion. Each of the plurality of blades has at least one recessed portion that opens at a trailing edge of the blade. The at least one recessed portion has a first side that is close to an inner circumference of the blade. The first side stretches from the trailing edge toward a leading edge of the blade, and is bent toward an outer circumference of the blade.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: May 17, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuyuki Yamamoto, Seiji Nakashima
  • Publication number: 20220146296
    Abstract: Provided are a heater that heats a fluid, and a temperature detector that detects a temperature of the fluid, and a flow rate of the fluid flowing through a main channel is corrected based on a tendency of a detection value detected by the temperature detector to change over time.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 12, 2022
    Inventor: Katsuyuki YAMAMOTO
  • Patent number: 11266282
    Abstract: A suction tool includes: a hollow cylindrical main pipe having: a rear end side connected to a vacuum cleaner main body; a front end portion in which a main suction port is formed; and a hollow cylindrical sub pipe having: a rear end side at which an inside of the hollow cylindrical sub pipe communicates with an inside of the main pipe; and a front end portion in which a sub suction port is formed. The sub pipe is movable between a retracted position in which the front end portion of the sub pipe is arranged so as to be retracted from the front end portion of the main pipe, and a use position in which the front end portion of the sub pipe is arranged so as to protrude from the front end portion of the main pipe along an axial direction of the main pipe.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 8, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuchika Tsuchida, Katsuyuki Yamamoto, Emi Tsukamoto, Masami Kurosaki
  • Patent number: 11248942
    Abstract: The flow rate measuring apparatus according to one aspect of the present invention is a flow rate measuring apparatus that intermittently measures the flow rate of a fluid, comprising a heating unit for heating the fluid; a control unit that controls a drive voltage for driving the heating unit, or the interval at which the drive voltage is applied, to the desired value; a temperature sensing unit that senses information about the temperature of the heated fluid; and a flow rate measurement unit that measures the flow rate of the fluid on the basis of the sensing signal outputted from the temperature sensing unit, wherein, in intermittently measuring the flow rate, the control unit varies the heating amount of the heating unit in each measurement by varying the interval at which the drive voltage is applied.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: February 15, 2022
    Assignee: OMRON Corporation
    Inventors: Katsuyuki Yamamoto, Naotsugu Ueda
  • Patent number: 11187239
    Abstract: A propeller fan according to an embodiment of the present invention includes a shaft provided a rotation axis of the propeller fan, and a blade provided on an outer peripheral side of the shaft. The blade has a trailing edge on a rear side of the blade in a rotation direction of the propeller fan. The trailing edge includes a first trailing edge located on an innermost side of the trailing edge, and a second trailing edge adjacent to and outward of the first trailing edge. Where an innermost point of the first trailing edge is a first connection point, a connection point between the first trailing edge and the second trailing edge is a second connection point, and a straight line that extends through the rotation axis and the first connection point is a reference line, the second connection point is located forward of the reference line in the rotation direction, or located on the reference line, and the second trailing edge is located rearward of the second connection point in the rotation direction.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: November 30, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takahide Tadokoro, Takuya Teramoto, Katsuyuki Yamamoto, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
  • Patent number: 11187238
    Abstract: A propeller fan includes a cylindrical shaft portion provided on a rotation axis of the propeller fan; a plurality of blades provided on an outer peripheral side of the shaft portion; a connection portion provided adjacent to the shaft portion and connecting two of the plurality of blades that are adjacent to each other in a circumferential direction of the propeller fan; a first rib provided on at least one of a pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on a downstream side in the flow of air, and a second rib provided on at least one of a negative-pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on an upstream side in the flow of air.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: November 30, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuyuki Yamamoto, Takuya Teramoto, Takahide Tadokoro, Hiroya Ito, Yuki Ugajin, Shingo Hamada, Takashi Ikeda, Takafumi Abe
  • Patent number: 11149743
    Abstract: A propeller fan includes a shaft part and a blade. The blade includes a basal part connected to the shaft part, a first part positioned either at the basal part or closer to an outer circumference of the propeller fan than is the basal part and away from the rotation axis by a distance r1, a second part positioned away from the rotation axis by a distance r2 that is longer than r1, a third part positioned away from the rotation axis by a distance r3 that is longer than or equal to r2, and a tip part positioned at an outer circumferential end of the blade and away from the rotation axis by a distance rt that is longer than r3. A relationship expressed as (?2??1)/(r2?r1)>(?t??3)/(rt?r3)?0 is satisfied.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 19, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuyuki Yamamoto, Seiji Nakashima, Kazunori Korenaga
  • Publication number: 20210302602
    Abstract: A seismic sensor may include a simple earthquake detection mode in which measured acceleration data is not saved, and which mode is continued in a case in which the measured acceleration is equal to or less than a predetermined first threshold value. An earthquake detection mode may further be included in which the measured acceleration data is saved, and which mode is continued in a case in which the acceleration measured in the simple earthquake detection mode is greater than the first threshold value and equal to or less than a second threshold value that is greater than the first threshold value. An earthquake measurement mode may further be included in which the acceleration data and a spectrum intensity (SI) value are measured and saved, and which mode is continued in a case in which the acceleration measured in the earthquake detection mode is greater than the second threshold value.
    Type: Application
    Filed: February 11, 2021
    Publication date: September 30, 2021
    Applicant: OMRON Corporation
    Inventors: Akinori NARUMIYA, Katsuyuki YAMAMOTO
  • Patent number: 11125595
    Abstract: The flow rate measurement device according to one aspect of the present invention comprises a heating unit for heating a fluid; temperature sensing units that are provided flanking the heating unit in the direction of fluid flow, and that sense the temperature of the heated fluid; a flow rate calculation unit that calculates the flow rate of the fluid on the basis of a sensing signals outputted from the temperature sensing units; angle calculation unit for calculating the tilt angle of the temperature sensing units with respect to a specific reference plane; a storage unit that stores the relation between the flow rate, the tilt angle, and a flow rate correction value; and a flow rate correction unit that corrects the flow rate by using the flow rate correction value stored in the storage unit.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: September 21, 2021
    Assignee: OMRON Corporation
    Inventor: Katsuyuki Yamamoto
  • Patent number: 11112285
    Abstract: A flow measurement device includes a flow sensor that senses a flow rate of a measurement target fluid flowing through a main channel, a characteristic-value obtaining unit that includes a heater heating the target fluid and a temperature sensor sensing a temperature of the target fluid, and obtains a characteristic value of the target fluid, and a flow rate correction unit that corrects a flow rate of the target fluid calculated based on a sensing signal from the flow sensor using the characteristic value of the target fluid obtained by the characteristic-value obtaining unit. The heater and the temperature sensor are arranged parallel to each other in a direction orthogonal to a flow direction of the target fluid. The characteristic-value obtaining unit obtains the characteristic value based on a difference between the temperatures of the target fluid sensed by the temperature sensor before and after the heater temperature is changed.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: September 7, 2021
    Assignee: OMRON Corporation
    Inventors: Hideyuki Nakao, Katsuyuki Yamamoto, Kenichi Handa, Ryuhei Goto
  • Patent number: 11098734
    Abstract: A propeller fan includes a boss on a rotation axis, and a blade at an outer circumferential portion of the boss. The blade includes a leading edge and a trailing edge. The blade includes a first area, a first sub-area located inward of the first area, and a second sub-area located outward of the first area. The first area includes a notch formed in the trailing edge. Each of the first sub-area and the second sub-area include plural notches formed in the trailing edge. The notch in the first area is larger than each of the plural notches in each of the first sub-area and the second sub-area.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiji Nakashima, Takuya Teramoto, Katsuyuki Yamamoto, Yusuke Adachi
  • Patent number: 11075690
    Abstract: A communication device includes: a reception antenna having element reception antennas, an element reception signal processor for processing element reception signals and outputting signals received from two directions changeable electronically and independently, a transmission antenna having element transmission antennas, an element transmission signal generator for generating element transmission signals capable of transmitting radio waves in two directions changeable electronically and independently, two modems for modulation and demodulation of transmission and reception signals using two communication lines, and a controller. The communication device operates by switching between a search mode to communicate by tracking a primary satellite and searching a direction at which beacon signals transmitted by satellites are receivable in a search range, and a two-line mode to communicate by tracking the primary satellite and the secondary satellite found in the search mode.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 27, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Katsuyuki Yamamoto
  • Patent number: 11054156
    Abstract: A heat exchanger, an axial-flow fan, a bell mouth, a fan motor, and a baffle plate are disposed in a casing of an outdoor unit. The casing includes a front panel provided with an air outlet, and a rear panel provided with an air inlet. The bell mouth and the baffle plate are disposed on an inner surface of the front panel. The bell mouth has a first opening opened toward the heat exchanger, and a second opening opened toward the air outlet. The baffle plate is disposed to incline from a predetermined position on the inner surface of the front panel toward where the bell mouth is disposed.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: July 6, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuyuki Yamamoto, Takuya Teramoto
  • Publication number: 20210116283
    Abstract: The flow rate measurement device according to one aspect of the present invention comprises a heating unit for heating a fluid; temperature sensing units that are provided flanking the heating unit in the direction of fluid flow, and that sense the temperature of the heated fluid; a flow rate calculation unit that calculates the flow rate of the fluid on the basis of a sensing signals outputted from the temperature sensing units; angle calculation unit for calculating the tilt angle of the temperature sensing units with respect to a specific reference plane; a storage unit that stores the relation between the flow rate, the tilt angle, and a flow rate correction value; and a flow rate correction unit that corrects the flow rate by using the flow rate correction value stored in the storage unit.
    Type: Application
    Filed: February 8, 2019
    Publication date: April 22, 2021
    Applicant: OMRON CORPORATION
    Inventor: Katsuyuki YAMAMOTO
  • Publication number: 20210080304
    Abstract: The flow rate measuring apparatus according to one aspect of the present invention is a flow rate measuring apparatus that intermittently measures the flow rate of a fluid, comprising a heating unit for heating the fluid; a control unit that controls a drive voltage for driving the heating unit, or the interval at which the drive voltage is applied, to the desired value; a temperature sensing unit that senses information about the temperature of the heated fluid; and a flow rate measurement unit that measures the flow rate of the fluid on the basis of the sensing signal outputted from the temperature sensing unit, wherein, in intermittently measuring the flow rate, the control unit varies the heating amount of the heating unit in each measurement by varying the interval at which the drive voltage is applied.
    Type: Application
    Filed: January 18, 2019
    Publication date: March 18, 2021
    Applicant: OMRON CORPORATION
    Inventors: Katsuyuki YAMAMOTO, Naotsugu UEDA
  • Publication number: 20210063223
    Abstract: A gas meter comprises a filter device having a filter for removing dust from gas that has flowed in from an inflow opening on the upstream side of a flow measurement module. The filter is disposed as to cover the inlet opening, and at least of a portion of the filter forms a plurality of filter partitions disposed spaced apart from one another toward the downstream side. At least two of the filter partitions have openings at different positions toward the downstream side.
    Type: Application
    Filed: August 5, 2020
    Publication date: March 4, 2021
    Applicant: OMRON CORPORATION
    Inventors: Hideyuki NAKAO, Katsuyuki YAMAMOTO, Takaaki SUZUMURA, Makoto KAMEI
  • Publication number: 20210033292
    Abstract: An air-sending device includes a fan and a grille provided downstream of the fan in a direction of airflow generated by the fan. The grille includes a first grille that includes a plurality of first bars spaced from each other, and a second grille that includes a plurality of second bars spaced from each other. The plurality of second bars are more densely arranged than the plurality of first bars. The second grille is provided upstream of the first grille in the direction of the airflow generated by the fan, and spaced from the first grille to face the first grille.
    Type: Application
    Filed: May 22, 2018
    Publication date: February 4, 2021
    Inventors: Takafumi ABE, Takahide TADOKORO, Katsuyuki YAMAMOTO