Patents by Inventor Makoto Furuhata

Makoto Furuhata 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: 20180224278
    Abstract: A gyro sensor includes: a first signal generation unit that generates a first driving signal and a second driving signal with a different phase by 180 degrees from the first driving signal; a movable detection portion that vibrates in accordance with the first and second driving signals and is displaced in accordance with an angular velocity; a fixed detection portion that is disposed to face the movable detection portion; and a second signal generation unit that generates a signal with the same phase as the first or second driving signal and applies the signal to the fixed detection portion.
    Type: Application
    Filed: January 4, 2018
    Publication date: August 9, 2018
    Inventor: Makoto Furuhata
  • Patent number: 9939269
    Abstract: A physical quantity sensor element of the invention is formed into a plane-shape along an XY plane, and is provided with two driving portions which vibrate in a Z-axis direction, two detecting portions, four beam portions which connect one driving portion and one detecting portion, four beam portions which connect the other detecting portion and the other driving portion, and a coupling portion of which one end is connected to a portion in one of the driving portion and the other end is connected to a portion in the other diving portion in which the each of the deriving portions includes a beam portion which is connected to the end portion of the coupling portion and is deformable so as to reduce a change of a posture of each of the driving portions with respect to an XY plane.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 10, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Patent number: 9939268
    Abstract: A physical quantity sensor element is formed into a plane-shape which extends along an XY plane, and is provided with a driving portion which vibrates in a Z-axis direction, a detecting portion which vibrates in an X-axis direction due to Coriolis effect acting on the driving portion, a beam portion which connects the driving portion and the detecting portion, a fixing portion, and a beam portion which connects the detecting portion and the fixing portion, in which a spring constant of the beam portion in the Z-axis direction is smaller than a spring constant of the beam portion in the Z-axis direction, and a spring constant of the beam portion in the Z-axis direction is greater than a spring constant of the beam portion in the X-axis direction.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 10, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Patent number: 9939270
    Abstract: A physical quantity sensor element is provided with a detecting portion, a driving portion, a beam portion which connects a detecting portion and the driving portion to each other, and in which the beam portion includes a branched portion. The beam portion includes two mass portion side beam portions which extend from two position of the driving portion, which are different from each other, and two supporting portion side beam portions which extend from two positions of the detecting portion, which are different from each other, and in which both end portions on the detecting portion side of two mass portion side beam portions are connected to each other, and both end portions on the driving portion side of two supporting portion side beam portions are connected to each other.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 10, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Patent number: 9857174
    Abstract: A gyro sensor capable of suppressing influence of the same phase mode on a vibration mode includes a vibrating body, a first spring structure portion that extends in a direction along a first axis and is connected to the vibrating body, first and second vibrating portions that are disposed in parallel to each other in the direction along the first axis and are excited and vibrated in an opposite phase to each other, and a second spring structure portion that extends in the direction along the first axis and is connected to the first and second vibrating portions, in which a first spring constant K1 of the first spring structure portion is smaller than a second spring constant K2 from a middle point at which a length between both ends of the second spring structure portion is equally divided into two to one end of the second spring structure portion.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: January 2, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Patent number: 9846442
    Abstract: There is provided a functional element capable of preventing an oblique vibration due to a vibration leakage phenomenon from propagating to degrade the detection accuracy. A gyro element as the functional element includes a support body, a detection section, a drive coupling section having a first part and a second part, and a mass section connected to the drive coupling section, and connected to the support body via the drive coupling section, and the mass section performs the drive vibration in a direction along a third axis parallel to a normal line of a plane including the first axis and the second axis perpendicular to each other.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: December 19, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Kei Kanemoto, Makoto Furuhata
  • Patent number: 9829505
    Abstract: An electronic device includes an accommodation space formed between a first base material and a second base material so as to seal a space therebetween, and a functional element in the accommodation space. The accommodation space is formed in an inner region of a bonding portion between the first base material and the second base material. The electronic device includes wirings extending from the inner region through the bonding portion to the outside of the accommodation space. The bonding portion includes a first bonding region and a second bonding region. The wiring includes a first wiring portion having a first direction toward the outside through the first bonding region from the inner region and a second wiring portion having a second direction toward the outside through the second bonding region from the inner region. The first and the second directions are different.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 28, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Patent number: 9798332
    Abstract: There is provided a functional element capable of preventing an oblique vibration due to a vibration leakage phenomenon from propagating to degrade the detection accuracy. A gyro element as the functional element includes a support body, a detection section, a drive coupling section having a first part and a second part, and a mass section connected to the drive coupling section, and connected to the support body via the drive coupling section, and the mass section performs the drive vibration in a direction along a third axis parallel to a normal line of a plane including the first axis and the second axis perpendicular to each other.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 24, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Kei Kanemoto, Makoto Furuhata
  • Patent number: 9702699
    Abstract: A functional element includes a first base body; a coupling section which is coupled to the first base body; a support body which extends from the coupling section; a mass body which is coupled to the support body; a drive electrode which is provided on a surface side that faces the mass body; a detection working electrode which extends from the support body; and a detection fixed electrode which is coupled to the first base body and faces at least a portion of the detection working electrode. The mass body can be displaced in a direction which intersects a main surface of the mass body. When a distance between the first base body and the mass body is referred to as d1 and a distance between the first base body and the detection fixed electrode is referred to as d2, a relation of d1>d2 is satisfied.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: July 11, 2017
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Publication number: 20170074655
    Abstract: A physical quantity sensor includes a substrate, a detection flap plate which is disposed facing the substrate, a mass portion which supports the detection flap plate, a beam portion which connects the detection flap plate and the mass portion, and a first regulating portion which is positioned between the detection flap plate and the mass portion and regulates displacement of the detection flap plate in an in-plane direction. In addition, the first regulating portion is provided in a corner portion of the detection flap plate which is formed in a rectangular shape.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 16, 2017
    Inventor: Makoto FURUHATA
  • Publication number: 20170074654
    Abstract: An oscillator includes a substrate, a detection flap plate which is disposed facing the substrate, and an elastically deformable beam portion which displaceably supports the detection flap plate in a Z axis direction with respect to the substrate, in which the detection flap plate is displaced to the substrate side in a range in which recovery force of the beam portion is larger than the electrostatic force which is formed between the substrate and the detection flap plate. That is, when a boundary at which electrostatic force and recovery force are equal is a pull in critical point, the detection flap plate is displaced within a region above the pull in critical point.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 16, 2017
    Inventor: Makoto FURUHATA
  • Patent number: 9372084
    Abstract: A gyro sensor includes a vibrator, a spring part extending from a first fixing part to the vibrator in a direction along a first axis, a drive part that excites the vibrator, and a detection part provided on the vibrator, wherein the vibrator has, in a plan view, first and second vibrating parts arranged side by side in the direction along the first axis and drive-vibrate in anti-phase with each other, a connecting spring part that connects the first and second vibrating parts in the direction along the first axis, and a first elastic member extending from the connecting spring part in a direction along a second axis intersecting with the first axis and fixed to a second fixing part.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: June 21, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Publication number: 20160146605
    Abstract: A gyro sensor includes a substrate, a first vibrating body and a second vibrating body, first suspension springs that support the first vibrating body, second suspension springs that support the second vibrating body, and a connection spring that connects the first vibrating body and the second vibrating body. When a spring constant of the first suspension springs and the second suspension springs is K1 and a spring constant of the connection spring is K2, 2K2?K1 is satisfied.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Inventor: Makoto FURUHATA
  • Patent number: 9321627
    Abstract: An electronic device includes an accommodation space formed between a first base material and a second base material, and a first functional element and a second functional element in the accommodation space. The accommodation space is disposed in an internal region of a bonding portion that bonds the first base material and the second base material together. The bonding portion includes a first bonding region provided on one side thereof and a second bonding region provided on the other side thereof. The electronic device includes a first wiring portion which is electrically connected to the first functional element and has a first direction toward the outside of the accommodation space through the first bonding region, and a second wiring portion which is electrically connected to the second functional element and has a second direction toward the outside of the accommodation space through the second bonding region.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 26, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Publication number: 20160069684
    Abstract: A physical quantity sensor element of the invention is formed into a plane-shape along an XY plane, and is provided with two driving portions which vibrate in a Z-axis direction, two detecting portions, four beam portions which connect one driving portion and one detecting portion, four beam portions which connect the other detecting portion and the other driving portion, and a coupling portion of which one end is connected to a portion in one of the driving portion and the other end is connected to a portion in the other diving portion in which the each of the deriving portions includes a beam portion which is connected to the end portion of the coupling portion and is deformable so as to reduce a change of a posture of each of the driving portions with respect to an XY plane.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventor: Makoto FURUHATA
  • Publication number: 20160069685
    Abstract: A physical quantity sensor element is provided with a detecting portion, a driving portion, a beam portion which connects a detecting portion and the driving portion to each other, and in which the beam portion includes a branched portion. The beam portion includes two mass portion side beam portions which extend from two position of the driving portion, which are different from each other, and two supporting portion side beam portions which extend from two positions of the detecting portion, which are different from each other, and in which both end portions on the detecting portion side of two mass portion side beam portions are connected to each other, and both end portions on the driving portion side of two supporting portion side beam portions are connected to each other.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventor: Makoto FURUHATA
  • Publication number: 20160069683
    Abstract: A physical quantity sensor element is formed into a plane-shape which extends along an XY plane, and is provided with a driving portion which vibrates in a Z-axis direction, a detecting portion which vibrates in an X-axis direction due to Coriolis effect acting on the driving portion, a beam portion which connects the driving portion and the detecting portion, a fixing portion, and a beam portion which connects the detecting portion and the fixing portion, in which a spring constant of the beam portion in the Z-axis direction is smaller than a spring constant of the beam portion in the Z-axis direction, and a spring constant of the beam portion in the Z-axis direction is greater than a spring constant of the beam portion in the X-axis direction.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventor: Makoto FURUHATA
  • Publication number: 20150362317
    Abstract: A functional element includes a first base body; a coupling section which is coupled to the first base body; a support body which extends from the coupling section; a mass body which is coupled to the support body; a drive electrode which is provided on a surface side that faces the mass body; a detection working electrode which extends from the support body; and a detection fixed electrode which is coupled to the first base body and faces at least a portion of the detection working electrode. The mass body can be displaced in a direction which intersects a main surface of the mass body. When a distance between the first base body and the mass body is referred to as d1 and a distance between the first base body and the detection fixed electrode is referred to as d2, a relation of d1>d2 is satisfied.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 17, 2015
    Inventor: Makoto FURUHATA
  • Patent number: 9165874
    Abstract: A semiconductor device includes a base substrate and first and second semiconductor wires which are arranged side by side on the base substrate, and the base substrate is provided with an opening (inter-wire grove, slit) in an extending direction of the first and second semiconductor wires between the first semiconductor wire and the second semiconductor wire.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: October 20, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Furuhata
  • Publication number: 20150268266
    Abstract: An electronic device includes an accommodation space formed between a first base material and a second base material so as to seal a space therebetween, and a functional element in the accommodation space. The accommodation space is formed in an inner region of a bonding portion between the first base material and the second base material. The electronic device includes wirings extending from the inner region through the bonding portion to the outside of the accommodation space. The bonding portion includes a first bonding region and a second bonding region. The wiring includes a first wiring portion having a first direction toward the outside through the first bonding region from the inner region and a second wiring portion having a second direction toward the outside through the second bonding region from the inner region. The first and the second directions are different.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 24, 2015
    Inventor: Makoto FURUHATA