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).
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.
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.
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.
October 23, 2020
February 11, 2021
Takashi ISHIHARA, Kazutaka YAMAMOTO, Katsuyuki ITO
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.
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.
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.
Abstract: A detection device for detecting characteristics of a mixed fluid containing different types of substances with different thermal properties within a prescribed range, includes: one or a plurality of heaters for heating the mixed fluid; a plurality of temperature detectors for detecting the temperature of the mixed fluid heated; a flow rate calculation unit for calculating the flow rate of the mixed fluid using the output from at least a portion of the plurality of temperature detectors; a correspondence relation storage unit that stores the correspondence relation between the output from the temperature detectors for a prescribed flow rate and the mixture ratio of the substances in the mixed fluid; and a mixture ratio calculation unit for calculating the mixture ratio of the substances in the mixed fluid on the basis of the output from the temperature detectors and the correspondence relation.
Abstract: Provided is a method for producing a sintered body that forms a rare-earth permanent magnet, has a single sintered structure and an arbitrary shape, and has easy magnetization axis orientations of different directions applied to the magnet material particles in a plurality of arbitrary regions. This method forms a three-dimensional first molded article from a composite material formed by mixing a resin material and magnet material particles containing a rare-earth substance. The first molded article is then subjected to a deforming force and a second molded article is formed in which the orientation direction of the easy magnetization axis of the magnet material particles in at least the one section of the horizontal cross-section is changed to a direction which differs from the orientation direction of the first molded article. The second molded article is heated to a sintering temperature and kept at the temperature for a period of time.
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.
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.
Abstract: A pressure sensor includes a detection element that detects a change in pressure, and a cover member that accommodates the detection element and that includes a first through hole and a second through hole. Each of the first through hole and the second through hole is provided at a position that does not overlap the detection element in a front view of the respective hole.
Abstract: Provided is a technique capable of more accurately measuring and outputting a flow rate according to an intended purpose, in a flow rate measurement device. A flow rate measurement device (1) for detecting a flow rate of measurement target fluid flowing through a main flow path (2) includes: a heater (113) configured to heat measurement target fluid; a plurality of temperature detectors (111, 112) that are arranged with the heater interposed in between in a flow direction of the measurement target fluid, and are configured to detect a temperature of the measurement target fluid; and a converter (133) configured to convert a difference in outputs of the plurality of temperature detectors into a heat flow rate or a heat quantity of measurement target fluid flowing through the main flow path.
Abstract: A propeller fan includes a shaft portion disposed on a rotation axis, and a blade disposed on an outer peripheral side of the shaft portion and including a leading edge and a trailing edge. The blade includes a negative pressure surface in which a plurality of recesses are formed, and the plurality of recesses include a first recess and a second recess disposed on the trailing edge side than the first recess in a circumferential direction about the rotation axis as a center. The first recess has a depth larger than a depth of the second recess.
Abstract: A bellmouth of a heat source unit includes: a straight tubular portion having a cylindrical shape; an air inlet portion which is radially expanded toward the upstream side, wherein, the air inlet portion has at least one angle-reduced portion that satisfies ?0>?i>0, where, an angle formed by a line L1 and a line L2 is taken as ?0, and an angle formed by a straight line L3 and the line L2 is taken as ?i, the line L1 is a line passing through a portion of an outer peripheral end portion of the air inlet portion, the line L2 is a line passing through a connecting portion between the air inlet portion and the straight tubular portion, and the straight line L3 is a line connecting an intersection P of the line L1 and the line L2 and a portion of the outer peripheral end portion of the air inlet portion.
Abstract: Provided is a propeller fan including a boss, and a blade fixed at an outer peripheral surface of the boss, wherein the blade has a second protrusion that protrudes toward a positive pressure surface side, at a trailing edge with respect to a rotation direction, the second protrusion is provided in a range on a radially outer side of a center of a radial distance from an inner peripheral end to an outer peripheral end of the blade, and has a protrusion tip end with a maximum protrusion height, a first base at a starting part of protrusion on a radially inner side of the protrusion tip end, and a second base at a starting part of protrusion on a radially outer side of the protrusion tip end, and the protrusion tip end is positioned nearer to the second base than to the first base in the radial direction.
Abstract: An image pickup device includes a camera, a display to display an image being obtained by the camera, and a touch panel that overlaps the display and is capable of detecting a flick operation performed on the touch panel. While the display displays the image being obtained by the camera, a brightness of the display is changed from a first brightness to a second brightness by a flick operation on the touch panel from down to up in a vertical direction. The second brightness is brighter than the first brightness. While the display displays the image being obtained by the camera, a setting other than a setting of the brightness of the display is changed by a flick operation on the touch panel from left to right in a lateral direction.
November 22, 2019
March 19, 2020
Takashi ISHIHARA, Kazutaka YAMAMOTO, Katsuyuki ITO
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.
Abstract: An image pickup device includes a camera, a display, and a touch panel detects a user operation including a flick operation in first and second directions. The image pickup device has first, second and third imaging modes, in which the display displays a video image being obtained by the camera. After determining that the user operation is the flick operation, switching to the second imaging mode occurs by a first flick operation in the first direction in the first imaging mode. Switching to the first imaging mode occurs by a second flick operation in the second direction in the second imaging mode. Switching to the third imaging mode occurs by a third flick operation in the second direction in the first imaging mode. Switching to the first imaging mode occurs by a fourth flick operation in the first direction in the third imaging mode.
April 9, 2019
Date of Patent:
January 7, 2020
Takashi Ishihara, Kazutaka Yamamoto, Katsuyuki Ito
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 second area inward of the first area, and third areas outward of the second area. The third areas are located inward and outward of the first area, with the first area interposed between the third areas. The first area, the second area and the third areas each include at least one notch in the trailing edge. The notches satisfy the relationship “P1>P2>P3”, where P1 is the width of the notch in the first area, P2 is the width of the notch in the second area, and P3 is the width of the notch in each of the third areas.