Patents by Inventor Kazuyuki Nagata

Kazuyuki Nagata 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: 20210132632
    Abstract: A physical quantity sensor includes a first plate, and a second plate opposed to the first plate via a gap, wherein a sensing area in which the gap between the first plate and the second plate changing with a physical quantity is detected based on a change of a capacitance is disposed in an area where the first plate and the second plate overlap each other in a plan view, the first plate is provided with a through hole in the sensing area, and in a part of the second plate where the second plate overlaps the through hole of the first plate in the plan view, a distance from the second plate to an imaginary plane extending in a same plane as a surface of the first plate opposed to the second plate via the gap is longer than a distance of the gap.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventor: Kazuyuki Nagata
  • Publication number: 20210061291
    Abstract: An inertial sensor unit includes a first inertial sensor and a second inertial sensor. The first inertial sensor has a first acceleration sensor element configured to detect an acceleration in a direction along the first axis, and a second acceleration sensor element configured to detect an acceleration in a direction along the second axis. The second inertial sensor has a third acceleration sensor element configured to detect an acceleration in a direction along the third axis, and a fourth acceleration sensor element configured to detect an acceleration in a direction along the first axis. The first acceleration sensor element, the second acceleration sensor element, the third acceleration sensor element, and the fourth acceleration sensor element have comb-tooth shaped detection electrodes.
    Type: Application
    Filed: August 27, 2020
    Publication date: March 4, 2021
    Inventor: Kazuyuki NAGATA
  • Publication number: 20200278376
    Abstract: An inertial sensor includes a package that includes a substrate and a lid bonded to the substrate and has an internal space between the substrate and the lid and a sensor element accommodated in the internal space, and in which the lid has a through-hole causing an inside and an outside of the internal space to communicate with each other and sealed with a sealing member and the inertial sensor further includes a cylindrical first projection portion provided on the lid and surrounding an opening of the through-hole on the internal space side in plan view and a cylindrical second projection portion provided on the substrate and surrounding an outer periphery of the first projection portion in plan view.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Inventor: Kazuyuki NAGATA
  • Publication number: 20200249022
    Abstract: An inertial sensor according to an embodiment includes, when three axes orthogonal to one another are represented as an X axis, a Y axis, and a Z axis, a substrate, a movable body configured to swing around a swing axis extending along the Y axis, a fixed section configured to support the movable body and fixed to the substrate, and a stopper fixed to the substrate and configured to come into contact with the movable body to thereby restrict rotational displacement of the movable body around the Z axis. A stopper joining region where the stopper and the substrate are jointed is located, in a plan view from a direction along the Z axis, within a first region formed by extending the movable body in a direction along the Y axis, and a portion of the stopper located outside the first region is separated from the substrate.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 6, 2020
    Inventor: Kazuyuki NAGATA
  • Publication number: 20200241032
    Abstract: An inertial sensor includes, assuming an X-axis, a Y-axis, and a Z-axis, a substrate, a movable body that swings around a swing axis along the Y-axis, a fixed portion that supports the movable body and is fixed to the substrate, and a stopper that is fixed to the substrate and regulates rotational displacement of the movable body around the Z-axis by coming into contact with the movable body, and in which the stopper includes a first stopper facing the movable body along the Y-axis and having a separation distance L1 from the swing axis and a second stopper facing the movable body along the Y-axis and having a separation distance L2 shorter than the separation distance L1 from the swing axis, and the movable body comes into contact with the first stopper and the second stopper simultaneously when the movable body is rotationally displaced.
    Type: Application
    Filed: January 23, 2020
    Publication date: July 30, 2020
    Inventor: Kazuyuki NAGATA
  • Publication number: 20200064368
    Abstract: A physical quantity sensor includes: a substrate; a movable object disposed displaceably with respect to the substrate; an electrode provided at a position facing the movable object on the substrate; an anchor portion fixing the movable object to the substrate; and a beam that is a rotation shaft of the movable object and connects the anchor portion and the movable object to each other, in which the movable object includes a first mass portion provided at one side of the beam, and a second mass portion provided at the other side of the beam, a first spring provided between the first mass portion and the beam, and a second spring provided between the second mass portion and the beam.
    Type: Application
    Filed: August 16, 2019
    Publication date: February 27, 2020
    Inventor: Kazuyuki NAGATA
  • Publication number: 20200033378
    Abstract: An acceleration sensor as a physical quantity sensor includes: a substrate; a correction electrode fixed to the substrate; a detection electrode fixed to the substrate; and a moving member fixed to the substrate. The moving member has: a base part; a first anchor part fixed to the substrate; a first finger electrode extending from the base part and facing the correction electrode; a mass part provided in such a way as to be displaceable in a direction of detection of a physical quantity in relation to the substrate; and a second finger electrode extending from the mass part and facing the detection electrode. A distance between a second anchor part where the detection electrode and the substrate are fixed, and the base part, is shorter than a distance between the second anchor part and the mass part.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 30, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kazuyuki NAGATA
  • Publication number: 20190265266
    Abstract: An angular velocity sensor includes a substrate, a detector including a movable detection electrode and a fixed detection electrode opposed to the movable detection electrode, and a driver adapted to drive the detector. The movable detection electrode is supported by a first spring that is elongated parallel to a Y axis from a first turned-back part, and a second spring that is elongated parallel to the Y axis from a second turned-back part. The first and second springs are fixed at first and second anchors. The first turned-back part is closer to the second spring than the first anchor. The detector includes a first surface opposed to the first spring, and a second surface disposed closer to the first spring than the first surface.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Kazuyuki NAGATA, Takayuki KIKUCHI
  • Publication number: 20190113341
    Abstract: A physical quantity sensor includes a substrate, a first detection electrode that includes a first electrode finger, a first spring that supports the first detection electrode in a displaceable manner in a first direction with respect to the substrate, a second detection electrode that includes a second electrode finger which is disposed at a distance from the first electrode finger in the first direction, and a second spring that supports the second detection electrode in a displaceable manner in the first direction with respect to the substrate. A spring constant of the first spring in the first direction is equal to a spring constant of the second spring in the first direction.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventors: Kazuyuki NAGATA, Takayuki KIKUCHI, Kei KANEMOTO
  • Publication number: 20190101391
    Abstract: A physical quantity sensor includes a drive vibrator, a detection vibrator, and an elastic deformation portion disposed between the drive vibrator and the detection vibrator and elastically deformable along a first axis in which the drive vibrator and the detection vibrator are aligned, in plan view, and in which the drive vibrator and the detection vibrator vibrate in reverse phases along the first axis. The drive vibrator and the detection vibrator vibrating alternately repeat approaching and separating from each other along the first axis.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Applicant: Seiko Epson Corporation
    Inventors: Kazuyuki NAGATA, Takayuki KIKUCHI
  • Publication number: 20190101395
    Abstract: A physical quantity sensor includes a substrate, a movable body that includes a movable drive electrode, a movable detection electrode, and a connection portion for connecting the movable drive electrode and the movable detection electrode and is allowed to vibrate along a first axis with respect to the substrate, a fixed drive electrode that is fixed to the substrate, is disposed to face the movable drive electrode, and vibrates the movable body along the first axis, and a fixed monitor electrode that is fixed to the substrate, is disposed to face the movable detection electrode and detects vibration of the movable body along the first axis.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Makoto FURUHATA, Takayuki KIKUCHI, Kazuyuki NAGATA
  • Patent number: 9331602
    Abstract: A MEMS vibrator includes: a substrate; a base portion which is disposed on the substrate; and a plurality of vibration portions which extends in a direction that intersects with a normal line of the substrate from the base portion. In a planar view, when a length of the vibration portion in a direction in which the vibration portion extends from the base portion is L, and a length of the vibration portion in a direction that intersects with a direction in which the vibration portion extends from the base portion is W, a dimension ratio (L/W) of the vibration portion satisfies a relationship in which 0.2?(L/W)?7.0.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 3, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Kazuyuki Nagata, Ryuji Kihara
  • Publication number: 20160087550
    Abstract: To reduce concentration of stress near a connection of a connection portion between a support portion and a fixed base portion of a vibration section of a MEMS vibrator and to achieve a reduction in vibration leakage, a structure of the vibrator includes a portion which extends from a fixed base portion and supports a vibration section and of which a width decreases in a direction directed from the fixed base portion to the vibration section.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 24, 2016
    Inventors: Kazuyuki NAGATA, Ryuji KIHARA
  • Publication number: 20150102865
    Abstract: A MEMS vibrator includes: a substrate; a base portion which is disposed on the substrate; and a plurality of vibration portions which extends in a direction that intersects with a normal line of the substrate from the base portion. In a planar view, when a length of the vibration portion in a direction in which the vibration portion extends from the base portion is L, and a length of the vibration portion in a direction that intersects with a direction in which the vibration portion extends from the base portion is W, a dimension ratio (L/W) of the vibration portion satisfies a relationship in which 0.2?(L/W)?7.0.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 16, 2015
    Inventors: Kazuyuki NAGATA, Ryuji KIHARA
  • Publication number: 20060238036
    Abstract: Circuit board coordinate position symbols of respective electronic components arranged on a microcomputer board based on an X-axis direction and a Y-axis direction of the microcomputer board are displayed in the vicinity of reference numbers or component symbols representing the respective electronic components and displayed on a microcomputer circuit diagram. Circuit diagram coordinate position symbols of respective reference numbers or component symbols representing the respective electronic components and displayed on the microcomputer circuit diagram are displayed in the vicinity of the reference numbers or component marks corresponding to the respective electronic components and displayed on the microcomputer board.
    Type: Application
    Filed: April 20, 2006
    Publication date: October 26, 2006
    Inventors: Kazuyuki Nagata, Saori Kimura, Sawako Yoshida
  • Publication number: 20060068631
    Abstract: The present invention relates to an electronic apparatus provided with a wiring board mounted with an electronic part having a plurality of leads on its four sides, the mounting direction of which is hard to be decided, which indicates an indication symbol corresponding to a part symbol indicated on the electronic part in a predetermined direction on the wiring board and thereby indicates the mounting direction of the mounted electronic part in a visually easily recognizable manner. An indication symbol 31 is indicated by silk printing in the same direction as that of a part symbol 21 indicated on an electronic part 20 in the vicinity of the electronic part 20 mounted on a wiring board 30 and if the part symbol 21 and the symbol of the indication symbol 31 are mounted in the same direction, the electronic part 20 is decided to be mounted correctly.
    Type: Application
    Filed: September 28, 2005
    Publication date: March 30, 2006
    Applicant: ORION ELECTRIC CO., LTD.
    Inventors: Chikara Shimada, Kazuyuki Nagata
  • Patent number: 7019982
    Abstract: A foolproof polarity indication for poled electronics parts or devices to be mounted to a printed circuit board assures that the poled electronics parts and/or devices are correctly mounted with respect of their polarities to meet occasional requirements dependent on different specifications. Each pair of terminal holes is allotted to a given poled electronics part or device. Two symbols representative of such electronics part or device are arranged side by side on either side of a line drawn from one terminal hole to the other terminal hole. The poled electronics part or device symbols are of reversed polarities. This dual symbol arrangement is effective to draw a worker's attention in the mounting of electrode components in terms of their polarities. When extra components or dummy components are combined with such a poled component, they are encircled by a boundary line, thereby showing the correct polarity direction of the poled component with respect to whether it is enclosed or not.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: March 28, 2006
    Assignee: Orion Electric Co., Ltd.
    Inventor: Kazuyuki Nagata
  • Publication number: 20040001327
    Abstract: Disclosed is a foolproof polarity indication of poled electronics parts or devices to be given to a printed circuit board to assure that poled electronics parts and/or devices be correctly mounted in respect of their polarities to meet occasional requirements dependent on different specifications. Each pair of terminal holes are allotted to a given poled electronics part or device. Two symbols representative of such electronics part or device are arranged side by side on either side of the line drawn from one to the other terminal hole. The poled electronics part or device symbols are of reversed polarities. This dual symbol arrangement is effective to draw workers' attention in mounting electrode components in terms of their polarities. When extra components or dummy ones are combined with such a poled component, they are encircled by a boundary line, thereby showing the correct polarity direction of the poled component in respect of whether it is enclosed or not.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 1, 2004
    Inventor: Kazuyuki Nagata
  • Patent number: 6622575
    Abstract: A fingertip-mounted six-axis force sensor includes a fingerstall into which a fingertip of a human is inserted, an elastic component connected and fixed to the fingerstall, adapted to distort in response to specific force components including fingertip contact forces and contact moments, and equipped with a distortion detecting device for detecting force components in three axial directions, and a finger cover equipped with a fitting block and connected and fixed to the elastic component via the fitting block. Distortion of the elastic component produced in response to the fingertip contact forces and contact moments exerted onto an object by the human fingertip is detected by the distortion detecting device and converted into an electrical signal that is taken out and processed to calculate the fingertip contact forces.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: September 23, 2003
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventor: Kazuyuki Nagata
  • Patent number: 6526669
    Abstract: An apparatus for acquiring human finger manipulation data includes at least one finger motion detector consisting of a force sensor to be fitted on a human fingertip, at least three links and at least four angle detectors; and a base supporting the finger motion detector. The base can be attached to an external mount or a human hand. The force sensor is connected to the base through a link mechanism constituted by the links, and the angle detectors are attached at pivots between the links and optionally at a pivot between the link mechanism and the base. Three-dimensional motion of the finger is determined by measuring data of the angle detectors of the link mechanism, and fingertip contact force is measured by the force sensor. Up to five finger motion detectors, one for the thumb and each finger, can be supported on the base.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 4, 2003
    Assignee: Agency of Industrial Science and Technology Ministry of International Trade and Industry
    Inventor: Kazuyuki Nagata