公开(公告)号：US20240118151A1

公开(公告)日：2024-04-11

申请号：US18376121

申请日：2023-10-03

Applicant: Hitachi, Ltd.

Inventor： Hiroyuki YOSHIMOTO ,  Yu YAMADA

IPC: G01L5/00 ,  G01L1/20

CPC classification number: G01L5/0028 ,  G01L1/20

Abstract: A sensing data correction system corrects sensing data acquired from a glove-type wearable sensor in which a film-like pressure sensor is incorporated into a fingertip, and includes a data correction unit for correcting the sensing data. Three coordinate axis directions in a three-dimensional orthogonal coordinate system are assumed to be a vertical direction, a longitudinal direction of the pressure sensor, and a width direction of the pressure sensor, and the pressure sensor is obtained by laminating one flexible printed circuit, one sheet-like pressure sensitive element, and one protective film in the vertical direction. An upper surface of the flexible printed circuit and a lower surface of the pressure sensitive element are bonded and fixed to each other, and an upper surface of the pressure sensitive element and a lower surface of the protective film are bonded and fixed to each other. The data correction unit executes sensing data correction processing.

公开(公告)号：US20240118156A1

公开(公告)日：2024-04-11

申请号：US18376123

申请日：2023-10-03

Applicant: Hitachi, Ltd.

Inventor： Hiroyuki YOSHIMOTO ,  Yu YAMADA

IPC: G01L5/22 ,  G01L5/101

CPC classification number: G01L5/226 ,  G01L5/101

Abstract: A technique that can emit a sensor signal that accurately reflects only the pressure to be truly detected in a glove-type wearable sensor in which a film-like pressure sensor is incorporated into a fingertip of a thin work glove is disclosed. In a film-like pressure sensor incorporated into a fingertip of a glove-type wearable sensor, three coordinate axis directions in a three-dimensional orthogonal coordinate system are assumed to be a vertical direction, a longitudinal direction of the pressure sensor, and a width direction of the pressure sensor, at least one or more flexible printed circuits and one sheet-like pressure sensitive element are laminated in the vertical direction, and only the pressure applied to the fingertip of a wearer after wearing the wearable sensor is detected.

公开(公告)号：US20190096562A1

公开(公告)日：2019-03-28

申请号：US16094146

申请日：2016-04-19

Applicant: HITACHI, LTD.

Inventor： Yu YAMADA ,  Takashi ISHIGAMI ,  Akira NISHIMIZU ,  Kouji SASAKI

IPC: H01F27/06 ,  H01F27/245

Abstract: The present invention is to improve a performance of a transformer having wound iron cores. The transformer having the wound iron cores which have multi-layer band-shape magnetic material, and a coil wound to pass through an inner circumference of the wound iron core, includes a wound iron core holding member that is a member longer than a width of the wound iron core for supporting an upper inner portion of the wound iron core, a coil holding member for supporting a lower outer portion of the coil, a first support structure including an upper beam arranged on an outer circumference of the wound iron core to support the wound iron core holding member, and a lower beam arranged on an outer circumference of the coil to support the coil holding member, and a second support structure including a pair of outer plates arranged on an inner portion of the upper frame and connected to a connection member that is longer than a width obtained by adding a diameter of the wound iron core and a diameter of the coil, and a wound iron core protection structure that is longer than a width of the wound iron core, for covering a portion where the outer circumference of the coil and an inner portion of the wound iron core face each other, and being connected to the outer plates.

公开(公告)号：US20230363710A1

公开(公告)日：2023-11-16

申请号：US18313541

申请日：2023-05-08

Applicant: Hitachi, Ltd.

Inventor： Yu YAMADA ,  Hiroyuki YOSHIMOTO

IPC: A61B5/00

CPC classification number: A61B5/6806

Abstract: A wearable sensor that is worn on a human body includes a layer-shaped body that has a shape of surrounding the body between a wrist and a fingertip of a hand of the human body and forms at least two layers that are at least partially overlapped with each other, and at least one sensor that is provided on at least one of the at least two layers.

公开(公告)号：US20190122805A1

公开(公告)日：2019-04-25

申请号：US16096957

申请日：2016-04-27

Applicant: Hitachi, Ltd.

Inventor： Naoya MIYAMOTO ,  Yu YAMADA ,  Takashi ISHIGAMI ,  Naoyuki KURITA ,  Akira NISHIMIZU

IPC: H01F27/25 ,  H01F27/06

Abstract: The invention is directed to a stationary induction electric device that can reduce loss. To this end, the stationary induction electric device is provided with a first iron core block erected and formed in an annular shape, a second iron core block configured to surround the outer periphery of the first iron core block, a winding wound around the first and the second iron core blocks, a first support plate supporting the upper portion of the first iron core block from below, and a second support plate supporting the upper portion of the second iron core block from below, and a curvature radius of a curved portion appearing on the outer periphery of the lower portion of the second iron core block is made larger than a curvature radius of a curved portion appearing on the outer periphery of the upper portion of the second iron core block.