Patents by Inventor Hiroshi Kitahara

Hiroshi Kitahara 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: 20190184424
    Abstract: A vibration generating device that can make a relatively heavy vibration member produce sufficient vibration. A vibration generating device has: a vibration member; multiple actuators that are connected to the vibration member; and a stationary element that supports the vibration member via the multiple actuators. Each of the multiple actuators comprises: a supporting body to which the vibration member is fixed; a movable element; a first elastic member that is connected to the supporting body and the movable element; and a magnetic drive circuit (a first magnetic drive circuit and a second magnetic drive circuit) that makes the movable element move linearly back and forth relative to the supporting body. The multiple actuators are supported by the stationary element via a second elastic member. The first elastic member and the second elastic member comprise a gelatinous silicone gel or the like.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Publication number: 20190184425
    Abstract: A linear actuator includes a movable element, a stationary element provided with a case in which the movable element is housed, and a magnetic drive mechanism that drives the movable element in a direction of an axis line. In the case, there is provided a sounding hole in a bottom plate part, at the other side in the direction of the axis line; the sounding hole being for discharging a pressure change in accordance with a vibration of the movable element in the direction of the axis line, as an audible level sound. Therefore, at a time when the movable element is vibrated in the direction of the axis line by the magnetic drive mechanism, the vibration is transferred to a user. Accordingly, information can be transferred by way of the vibration. Moreover, the information can also be transferred by way of the sound.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Publication number: 20190190365
    Abstract: Provided is a linear actuator including a movable element, a stationary element, a magnetic drive mechanism configured to linearly move the movable element in a first direction with respect to the stationary element, and damper member arranged between the movable element and the stationary element. The magnetic drive mechanism includes a coil holder arranged on the stationary element, a coil supported by a coil supporting unit of the coil holder, a first yoke arranged on the movable element, and a first permanent magnet held by the first yoke. The damper member is arranged in a portion where the first yoke and the coil holder face each other in the second direction. As a result, the damper member can be arranged between the stationary element and the movable element without using a case.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Patent number: 10327003
    Abstract: The computational complexity when a block configuration in an encoding target region is determined is reduced while the degradation of coding efficiency is suppressed. A video encoding apparatus includes a block selecting unit which selects each of blocks obtained by recursively dividing an encoding target block as a target block in a predetermined sequence, a block size acquiring unit which acquires the smallest block size in an adjacent block for the selected target block, an evaluation value calculating unit which calculates an evaluation value of the target block if a block size of the target block matches any one of the acquired block size, the block size one level higher than the acquired block size, and the block size one level lower than the acquired block size, and a block configuration determining unit which determines a combination of the blocks constituting the region within the encoding target block based on the evaluation value.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: June 18, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shinobu Kudo, Masaki Kitahara, Atsushi Shimizu, Hiroshi Fujii, Mayuko Watanabe
  • Publication number: 20190182601
    Abstract: A linear actuator may include a movable element having a plurality of permanent magnets stacked in a direction of an axis line; a stationary element comprising a plurality of coils surrounding a circumferential section of the permanent magnets, the plurality of coils being placed along the axis line; and viscous elastic members inserted between the movable element and the stationary element. The plurality of permanent magnets are arranged such that, among adjacent permanent magnets of the plurality of permanent magnets, sides of the adjacent permanent magnets facing each other have a same polarity. The viscous elastic members are provided at a plurality of locations being separate in the direction of the axis line, in a space sandwiched in a radial direction by the movable element and the stationary element.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 13, 2019
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Patent number: 10252295
    Abstract: A linear actuator may include a movable element including a cylindrical permanent magnet; a stationary element including a coil bobbin that surrounds the permanent magnet at an outside in a radial direction; a spring member connected to the movable element and the coil bobbin, and supporting the movable element to be movable in an axial direction in relation to the coil bobbin; a coil wound around the coil bobbin, for configuring a magnetic drive mechanism together with the permanent magnet, the magnetic drive mechanism being structured to drive the movable element in the axial direction; and a gel damper member being sandwiched between the stationary element and the movable element in the axial direction.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: April 9, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Takeshi Sue
  • Publication number: 20190070635
    Abstract: This application provides an actuator capable of causing vibrations in multiple directions to a movable body. For instance, an actuator has a supporting body, a movable body, and a connecting body connected to the movable body and the supporting body. Between the supporting body and the movable body, a first coil and a second coil are stacked in two stages in the first direction, and a first magnet and a second magnet are placed on both ends of each of the first coil and the second coil stacked in two stages in the first direction in a first magnetic drive circuit. The first magnetic drive circuit is provided at two positions separated in the second direction. Between the first magnetic drive circuits separated in the second direction, a stopper mechanism is formed to restrict the movable range of the movable body in the direction perpendicular to the first direction.
    Type: Application
    Filed: January 24, 2017
    Publication date: March 7, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Publication number: 20180294690
    Abstract: A linear actuator may include a stationary element a movable element a magnetic drive mechanism structured to linearly drive the movable element in a driving direction relative to the stationary element and a gel damper member provided between the stationary element and the movable element. The gel damper member may be held between a first part in the stationary element that faces in a direction perpendicular to the driving direction and a second part in the movable element that faces the first part in a direction perpendicular to the driving direction.
    Type: Application
    Filed: September 12, 2016
    Publication date: October 11, 2018
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Masao TSUCHIHASHI
  • Publication number: 20180083521
    Abstract: A method for manufacturing a linear actuator may include providing a first element and a second element to a stationary element; supporting the movable element with the first element by the intermediary of the spring member; setting a distance dimension between the movable-element-side facing surface and the stationary-element-side facing surface with a specified dimension corresponding to a length dimension of the damper members, by way of making a relative displacement between the first element and the second element in the moving direction, in a situation where a clearance is formed between the first element and the second element in the moving direction; and fixing the first element and the second element to each other by use of an adhesive, in the situation of having the clearance between the two.
    Type: Application
    Filed: June 1, 2016
    Publication date: March 22, 2018
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20180048221
    Abstract: A linear actuator may include a movable element; a stationary element; and a damper member inserted between a movable-element-side facing suface of the movable element and a stationary-element-side facing surface of the stationary element. The stationary element may include a first element structured to support the movable element via a spring member in such a way as to be movable, and a second element comprising the stationary-element-side facing surface and overlapping with the first element from a side opposite to the movable element in the moving direction. A distance adjusting part may be provided between the first element and the second element, the distance adjusting part being structured to adjust a distance between the first element and the second element in the moving direction, by way of deforming at least one of the first element and the second element.
    Type: Application
    Filed: March 29, 2016
    Publication date: February 15, 2018
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20170310203
    Abstract: An actuator may include a supporting body; a movable body; a connecting body connected to the movable body and the supporting body and having elasticity or viscoelasticity; a first magnetic driving circuit including first magnets and a first coil held by the supporting body and movable body, the first coil being opposed to the first magnets in a first direction, and the first magnetic driving circuit generating driving the movable body in a second direction which perpendicularly intersects with the first direction; and a second magnetic driving circuit including second magnets and a second coil held by the supporting body or the movable body, the second coil being opposed to the second magnets in the first direction, and the second magnetic driving circuit driving the movable body in a third direction which perpendicularly intersects with the first direction and crosses the second direction.
    Type: Application
    Filed: December 18, 2015
    Publication date: October 26, 2017
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi TAKEDA, Takeshi SUE, Masao TSUCHIHASHI, Hiroshi KITAHARA
  • Publication number: 20170216885
    Abstract: A linear actuator may include a movable element including a cylindrical permanent magnet; a stationary element including a coil bobbin that surrounds the permanent magnet at an outside in a radial direction; a spring member connected to the movable element and the coil bobbin, and supporting the movable element to be movable in an axial direction in relation to the coil bobbin; a coil wound around the coil bobbin, for configuring a magnetic drive mechanism together with the permanent magnet, the magnetic drive mechanism being structured to drive the movable element in the axial direction; and a gel damper member being sandwiched between the stationary element and the movable element in the axial direction.
    Type: Application
    Filed: July 21, 2015
    Publication date: August 3, 2017
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Takeshi SUE
  • Publication number: 20170110952
    Abstract: A linear actuator may include a stator; a movable element; a spring member connected to the movable element and the stator and structured to support the movable element in such a way as to be movable with respect to the stator in a direction of an axis line; a magnetic drive mechanism structured to drive the movable element in the direction of the axis line; and a gel damper member placed at a position on a center line of the movable element or one of a group of positions surrounding the center line, between the stator and the movable element.
    Type: Application
    Filed: March 17, 2015
    Publication date: April 20, 2017
    Inventors: Tadashi TAKEDA, Hiroshi KITAHARA, Takeshi SUE
  • Publication number: 20100076580
    Abstract: A semiconductor integrated circuit design method, includes modeling a layer thickness of a wiring by a function including as independent variables, a percentage of surface area of the wiring in a first two-dimensional region where the wiring is formed, and a percentage of surface area for elements other than the wiring in a second two-dimensional region, and designing the wiring based on the wiring modeled.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 25, 2010
    Applicant: NEC Electronics Corporation
    Inventor: Hiroshi Kitahara
  • Patent number: 6344155
    Abstract: An electrically conductive adhesive composition which has flexibility and folding endurance and is feasible for use as a shield against electromagnetic waves from a flexible printed circuit, comprises 100 parts by weight of (a) an acrylonitrile-butadiene copolymer, 20 to 500 parts by weight of (b) a phenolic resin and/or an epoxy resin, 1 to 100 parts by weight, per 100 parts by weight of the components (a) and (b) in total, of (c) an electrically conductive filler and 1 to 50 parts by weight, per 100 parts by weight of the components (a) and (b) in total, of (d) a bromine-containing flame retardant.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: February 5, 2002
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventors: Hiroshi Kitahara, Kensaku Higashi
  • Patent number: 6304530
    Abstract: A first pair of light-receiving cells and a second pair of light-receiving cells are diagonally arranged to constitute a quadrifid light-receiving cells. A pair of first wiring patterns are respectively connected to the first pair of light-receiving cells for leading out output signals therefrom. A pair of second wiring patterns are respectively connected to the second pair of light-receiving cells for leading out output signals therefrom. The first wiring patterns are arranged adjacent to each other, and the second wiring patterns are arranged adjacent to each other. A third wiring pattern is arranged between the first and second wiring patterns, in which a signal having a different nature from those of the output signals from the light-receiving cells.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: October 16, 2001
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventor: Hiroshi Kitahara
  • Patent number: 5010879
    Abstract: A device for correcting spinal deformities by attachment to portions of the spine of a patient has an elongated rod with a smooth outer peripheral surface, hook members each of which is formed with a hook-like engagement member on one end and a retaining portion through which the elongated rod is loosely inserted, and wedge-like members each in the form of a cylinder with a slit which is provided with a flange on one end. After the elongated rod is loosely inserted into the retaining portions of said hook members with a predetermined play, the wedge-like members mounted on the elongated rod are forcibly inserted into interstices formed between the loosely fitted rod and hook members, to thereby firmly fix the hook members with the elongated rod.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: April 30, 1991
    Assignee: Tanaka Medical Instrument Manufacturing Co.
    Inventors: Hideshige Moriya, Hiroshi Kitahara, Shohei Minami, Keijiro Isobe, Yoshinori Nakata, Chiaki Tanaka
  • Patent number: 4779956
    Abstract: A liquid crystal display having plural liquid crystal cells which are constituted as a matrix, each cell respectively having one transistor and being supplied with image signals by such transistors. The driving circuit for a liquid crystal display of the present invention periodically changes the polarity of the voltage of the image signals and the voltage between both terminals of the liquid crystal cell so as to switch the transistor, and the driving circuit generates gate signals which are impressed on the gate electrode of each transistor, the gate signals having a lowest voltage which is lower than a voltage obtained by subtracting the amplitude voltage of the common electrode of the liquid crystal cells from the lowest voltage in the driving voltage obtained from the image signals.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: October 25, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yukio Nemoto, Koushiro Takahashi, Masaki Hosono, Hiroshi Kitahara