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公开(公告)号：US12146802B2
公开(公告)日：2024-11-19
申请号：US17874795
申请日：2022-07-27
Inventor： Susumu Uragami , Hiroyuki Furuya , Yuta Moriura , Takashi Matsumoto , Hironobu Ukitsu , Yodai Matsumura
Abstract: A load sensor includes: a first base member and a second base member disposed so as to face each other; an electrically-conductive elastic body disposed on an opposing face of the first base member; and a conductor wire disposed between the second base member and the electrically-conductive elastic body and configured as a plurality of element wires being twisted. Each element wire is configured as an electrically-conductive member which has a linear shape and of which the surface is covered by a dielectric body. A twist pitch of the plurality of element wires satisfies a conditional expression “p≤12nd”. In the expression, p is the twist pitch of the plurality of element wires, n is the number of the element wires included in the conductor wire and d is the outer diameter of each element wire.
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公开(公告)号：US11740141B2
公开(公告)日：2023-08-29
申请号：US17354907
申请日：2021-06-22
Inventor： Susumu Uragami , Hiroyuki Furuya , Yuta Moriura , Takashi Matsumoto , Hironobu Ukitsu , Shinobu Masuda , Mitsutaka Matsumoto , Yui Sawada
IPC: G01L1/14
CPC classification number: G01L1/144
Abstract: Provided is a pressure-sensitive element having a relatively wide measurement range of a pressing force and a relatively simple structure while having more sufficient stretchability. A pressure-sensitive element includes a base material, a plurality of conductor wires, a plurality of dielectrics, and a filamentous member. The base material includes an elastic conductor having elasticity and conductivity. Further, the base material has a sheet shape. The plurality of conductor wires are arranged in parallel so as to individually intersect with the elastic conductor in plan view. Further, each of the plurality of conductor wires has a plurality of inflection parts. The plurality of dielectrics are arranged between the elastic conductor and the plurality of conductor wires. The filamentous member elongates so as to intersect with the plurality of conductor wires in plan view. Further, the filamentous member sews the plurality of conductor wires to the base material.
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公开(公告)号：US11493394B2
公开(公告)日：2022-11-08
申请号：US17043622
申请日：2019-01-17
Inventor： Hironobu Ukitsu , Yuta Moriura , Hiroyuki Furuya , Takashi Matsumoto , Yui Sawada
Abstract: A capacitance detection device includes: a sensor unit including a plurality of sensor elements; row control lines; column control lines; a control circuit supplying a charging voltage to the sensor element; and an equipotential circuit outputting a potential equal to the potential of the sensor element subject to measurement. The control circuit applies a charging voltage to the row control line connected to the sensor element and connects the column control line connected to the sensor element to the ground potential side. The control circuit causes the equipotential circuit to set a potential of at least one of the row control lines other than the row control line connected to the sensor element subject to measurement and the column control lines other than the column control line connected to the sensor element subject to measurement to a potential equal to the potential of the sensor element subject to measurement.
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公开(公告)号：US11448559B2
公开(公告)日：2022-09-20
申请号：US17043500
申请日：2019-01-17
Inventor： Hironobu Ukitsu , Yuta Moriura , Hiroyuki Furuya , Takashi Matsumoto , Yui Sawada
IPC: G01L1/14
Abstract: A capacitance detection device includes a sensor unit including at least one sensor element whose capacitance changes, a control line applying to the sensor element a predetermined charging voltage for detecting the capacitance of the sensor element, a shield line electrically shielding the control line, a control circuit supplying the charging voltage to the sensor element via the control line, measuring a voltage change of the sensor element when the charging voltage is applied to the sensor element, and detecting the capacitance of the sensor element based on the voltage change, and an equipotential circuit setting a potential of the shield line equal to a potential of the control line.
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公开(公告)号：US10514540B2
公开(公告)日：2019-12-24
申请号：US16013981
申请日：2018-06-21
Inventor： Akira Kurozuka , Yuta Yamamoto , Susumu Uragami , Hiroyuki Furuya
IPC: H01S5/068 , G02B27/01 , G03B21/20 , G02B27/14 , B60K35/00 , G02B27/30 , H01S5/0683 , H04N9/31 , H01S5/06
Abstract: The disclosure provides a light source device and an image display device. The light source device includes a laser light source configured to emit laser light having a wavelength in a range from 635 nm to 645 nm inclusive, a temperature sensor configured to detect temperature around the light source device, and a laser control circuit configured to control the laser light source. The laser control circuit approximates, with use of a quartic expression, change in threshold current of the laser light source relative to temperature, and approximates, with use of a quadratic expression, change in slope efficiency of the laser light source relative to temperature, to obtain threshold current and slope efficiency of the laser light source corresponding to detection temperature of the temperature sensor, and controls the laser light source in accordance with the threshold current and the slope efficiency thus obtained.
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Patent Agency Ranking
公开(公告)号：US10451872B2
公开(公告)日：2019-10-22
申请号：US15849799
申请日：2017-12-21
Inventor： Ken'ichi Kasazumi , Toshiya Mori , Hiroaki Okayama , Satoshi Kuzuhara , Hiroyuki Furuya , Hiroshi Gotou , Akira Kurozuka
IPC: G02B27/01 , G02B26/10 , H04N13/393 , B60K35/00 , H04N9/31 , H04N13/363
Abstract: The present invention provides a display device that can easily perform control for driving a movable screen. Display device includes light source that emits a light beam, scanner that causes the light beam from light source to scan, movable screen in which a first image is formed by transmitting the light beam from scanner, projection unit that projects the first image formed in movable screen on windshield and displays a virtual image of the first image in a space in front of windshield, and driver that causes movable screen to reciprocate in a first direction separating from scanner and in a second direction approaching scanner. Movable screen reciprocates in a posture inclined to moving directions of movable screen.
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公开(公告)号：US10432899B2
公开(公告)日：2019-10-01
申请号：US16001469
申请日：2018-06-06
Inventor： Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto , Susumu Uragami
IPC: H04N9/31 , G09G3/02 , B60K35/00 , G02B27/01 , G09G3/00 , G03B21/602 , G03B21/625
Abstract: Provided is an image display device capable of effectively enhancing image quality of a display image with a simple configuration. The image display device includes a light source, a screen configured to be two-dimensionally scanned with laser light to draw an image on the screen, a scanning unit configured to scan the screen with the laser light, a mirror drive circuit configured to drive the scanning unit, and an optical system configured to generate a virtual image of the image drawn on the screen. On the screen, a plurality of lens regions are arranged so as to individually line up in two directions different from each other. Rows of the lens regions in one of the two directions are inclined relatively at a predetermined inclination angle with respect to main scan directions of the laser light to the screen.
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公开(公告)号：US12123829B2
公开(公告)日：2024-10-22
申请号：US17726697
申请日：2022-04-22
Inventor： Akira Kurozuka , Tatsuo Itoh , Kosuke Imawaka , Hiroyuki Furuya
IPC: G01N21/3554 , G01J1/04 , G01N21/359 , G01N21/47 , G08G1/00
CPC classification number: G01N21/3554 , G01J1/0411 , G01J1/0455 , G01N21/359 , G01N21/47 , G08G1/00 , G01N2021/4761
Abstract: An optical device includes: a light source part configured to project illumination light toward a sensing region; a photodetector configured to receive reflected light of the illumination light reflected on the sensing region; and a condenser mirror. The condenser mirror has a through hole through which the illumination light from the light source part passes and an optical axis of the light source part and an optical axis of the condenser mirror are aligned with each other. A reflection surface of the condenser mirror has a shape obtained by cutting out a columnar body extending in a projection direction of the illumination light, with a spheroid whose rotation axis is a major axis. The photodetector is disposed in a direction toward a first focal position of the condenser mirror. The sensing region is set in a direction toward a second focal position of the condenser mirror.
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公开(公告)号：US12097785B2
公开(公告)日：2024-09-24
申请号：US17747671
申请日：2022-05-18
Inventor： Takashi Matsumoto , Hiroyuki Furuya , Yuta Moriura , Hironobu Ukitsu , Susumu Uragami , Yoshinori Matsui
IPC: B60N2/00 , B60Q9/00 , B60R21/015 , G01G19/414
CPC classification number: B60N2/002 , B60Q9/00 , B60R21/01516 , G01G19/4142
Abstract: A mounted object detection device includes: a load sensor in which a plurality of sensor parts each configured to detect a load are disposed in a matrix shape; and a controller configured to detect a situation of a mounted object on the load sensor on the basis of an output from the load sensor. The controller: detects a load distribution on a detection region of the load sensor on the basis of an output from the load sensor; discerns which of a person or animal and a thing the mounted object is, on the basis of the load distribution; and when having discerned that the mounted object is a thing, discerns whether or not a person or an animal is mounted on the thing, on the basis of temporal change in the load distribution.
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公开(公告)号：US20210088797A1
公开(公告)日：2021-03-25
申请号：US17116984
申请日：2020-12-09
Inventor： Susumu Uragami , Hiroyuki Furuya , Akira Kurozuka , Yuta Yamamoto , Mitsutaka Yamaguchi , Yoshiro Kashiwabara
IPC: G02B27/01
Abstract: An image display apparatus includes: a light source; a screen on which an image is formed when light from the light source is applied thereto; an optical system configured to generate a virtual image by light from the screen; an actuator configured to move the screen in an optical axis direction; a support base supporting the actuator; and a dynamic damper installed on a non-movable part on the support base.
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