Patents by Inventor Hitoshi Saito

Hitoshi Saito 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).

  • Patent number: 10177565
    Abstract: The purpose of the present invention is to enable use of a solenoid-type electromagnetic valve (120) in a valve driving device (10) that performs wireless communication. A contact signal converter (110) that converts an on-off contact signal to a control signal for operating a solenoid-type electromagnetic valve (120) comprises an explosion protection barrier (115) which restricts the current of the control signal to be no more than a maximum current established for safety regarding solenoid-type electromagnetic valves (120), and a group of batteries (111), the number of which can ensure a voltage at which the voltage supplied via the explosion protection barrier (115) surpasses the operating voltage of the solenoid-type electromagnetic valve (120).
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: January 8, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Hitoshi Saito, Nobuhiro Kanatani
  • Patent number: 10162408
    Abstract: A head mounted display for supporting improvement in an act of moving a body is provided. The head mounted display includes image display unit that transmits external scenery therethrough and forms an image, a body motion detection unit that detects motions of a body of a user and at least a part of a tool bundled with the body, a model moving image acquisition unit that accesses a model moving image storage unit which stores, as a model moving image, a moving image showing a motion of the body, used as a reference of the act and stores the model moving image for each type of act, and acquires one or a plurality of model moving images corresponding to a detection result from the body motion detection unit, and a display control unit that causes the image display unit to form the acquired model moving image.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 25, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Saito, Masahide Takano, Hiroyuki Baba
  • Patent number: 10133344
    Abstract: When a hand of the user is recognized in an image pickup region of a camera, a head mounted display monitors behavior of the hand in the image pickup region. When the hand of the user in the image pickup region reaches an outer peripheral region forming an outer periphery of the image pickup region, a notification is give to the user.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 20, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Saito
  • Publication number: 20180330895
    Abstract: A capacitor-type power supply unit including: a positive bus to which a plurality of capacitor is connected in parallel at each positive-electrode terminal thereof with maintaining equal intervals therebetween, and extends in a parallel direction; and an negative bus to which the plurality of capacitor is connected in parallel, at each negative-electrode terminal thereof with maintaining equal intervals therebetween, and extends in the parallel direction, in which the positive bus has a positive-electrode-side external connection part that is set at a position (SD) separated from the positive-electrode first end by a range of 20% to 30% of the total length in the longitudinal direction thereof, and the negative bus has an negative-electrode-side external connection part that is set at a position (SD) separated from the negative-electrode second end by a range of 20% to 30% of the total length in the longitudinal direction thereof.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 15, 2018
    Inventors: Shogo Nagayoshi, Shinya Watanabe, Yasuhisa Saito, Hitoshi Saito, Shinyu Hirayama, Hironori Sawamura
  • Publication number: 20180205219
    Abstract: To provide a semiconductor circuit capable of slightly generating inductance in two facing bus bars. Provided with a semiconductor circuit in which a collector-side bus bar 46 and an emitter-side bus bar 41 are arranged in parallel in a state of being isolated from each other and are fitted in a fixed manner to each other, and a inductance generation portion 411 is provided in one or both of the collector-side bus bar 46 and the emitter-side bus bar 41, the inductance generation portion 411 generating a difference in inductance between the collector-side bus bar 46 and the emitter-side bus bar 41.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 19, 2018
    Inventors: Shogo Nagayoshi, Shinya Watanabe, Yasuhisa Saito, Hitoshi Saito, Shinyu Hirayama, Hironori Sawamura
  • Publication number: 20180180113
    Abstract: An engine clutch device includes first and second alternately stacked frictional power transmitting members and a clutch pressure member for axially bringing the frictional power transmitting members into pressure contact. The clutch device includes an oil supply portion adjacent to a distal end of power transmission shaft. The clutch device has an oil supply structure including a clutch lifter member with a flange portion axially facing the distal end of power transmission shaft, to axially shift the clutch pressure member to release the pressure contact of the frictional power transmitting members. The flange portion has a bowl-shaped portion extending axially to surround the one end portion of the power transmission shaft. The bowl-shaped portion including the flange portion functions to guide oil axially inward along the power transmission shaft and serves to provide an improved oil supply effect to the frictional power transmitting members.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 28, 2018
    Inventors: Akira Tokito, Toshitaka Akita, Yoichiro Takahashi, Taichi Honda, Hitoshi Saito
  • Patent number: 9973019
    Abstract: A charging current setting method includes an upper limit temperature recognition step which recognizes an upper limit temperature of the secondary battery (11), an actual temperature recognition step which recognizes an actual temperature of the secondary battery (11), a maximum power recognition step which recognizes an maximum power according to a heat quantity which the secondary battery (11) allows during a charge period based on a difference between the upper limit temperature and the actual temperature, a thermal resistance of the secondary battery (11), and a length of a predetermined period and the charge period, and a current setting step which sets a charge current to be an upper limit value or less by recognizing the upper limit value of the charge current of the secondary battery (11) based on an endothermic and exothermic characteristics map of the secondary battery (11) with respect to current and the maximum power.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 15, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinya Watanabe, Hitoshi Saito, Yasuhisa Saito, Hironori Sawamura
  • Publication number: 20170285734
    Abstract: A head mounted display for supporting improvement in an act of moving a body is provided. The head mounted display includes image display unit that transmits external scenery therethrough and forms an image, a body motion detection unit that detects motions of a body of a user and at least a part of a tool bundled with the body, a model moving image acquisition unit that accesses a model moving image storage unit which stores, as a model moving image, a moving image showing a motion of the body, used as a reference of the act and stores the model moving image for each type of act, and acquires one or a plurality of model moving images corresponding to a detection result from the body motion detection unit, and a display control unit that causes the image display unit to form the acquired model moving image.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 5, 2017
    Inventors: Hitoshi SAITO, Masahide TAKANO, Hiroyuki BABA
  • Publication number: 20170262047
    Abstract: When a hand of the user is recognized in an image pickup region of a camera, a head mounted display monitors behavior of the hand in the image pickup region. When the hand of the user in the image pickup region reaches an outer peripheral region forming an outer periphery of the image pickup region, a notification is give to the user.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventor: Hitoshi SAITO
  • Patent number: 9761196
    Abstract: A head-mount display apparatus includes a display element, a sight line direction detecting unit, an imaging unit, a sight line direction determining section that determines whether or not the line of sight is oriented downward based on a detection result from the sight line direction detecting unit, an operation determining section that determines whether or not the shape of a hand of the viewer shows a predetermined operation pattern based on a signal inputted from the imaging unit, and a display control section that controls display operation of the display element based on determination results from the sight line direction determining section and the operation determining section, and the display control section instructs the display element to display an operation object when it is determined that the line of sight is oriented downward and that the shape of the hand shows the predetermined operation pattern.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 12, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Saito
  • Patent number: 9720230
    Abstract: A head mounted display for supporting improvement in an act of moving a body is provided. The head mounted display includes image display unit that transmits external scenery therethrough and forms an image, a body motion detection unit that detects motions of a body of a user and at least a part of a tool bundled with the body, a model moving image acquisition unit that accesses a model moving image storage unit which stores, as a model moving image, a moving image showing a motion of the body, used as a reference of the act and stores the model moving image for each type of act, and acquires one or a plurality of model moving images corresponding to a detection result from the body motion detection unit, and a display control unit that causes the image display unit to form the acquired model moving image.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: August 1, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Saito, Masahide Takano, Hiroyuki Baba
  • Patent number: 9690371
    Abstract: When a hand of the user is recognized in an image pickup region of a camera, a head mounted display monitors behavior of the hand in the image pickup region. When the hand of the user in the image pickup region reaches an outer peripheral region forming an outer periphery of the image pickup region, a notification is give to the user.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 27, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Saito
  • Patent number: 9689505
    Abstract: It is to realize a valve remote control apparatus capable of driving and controlling, with wireless signals, an air motor configuring an automatic switch to be attached to a manual valve. A valve remote control apparatus is configured to mechanically connect, to a manual operating portion 11 of an existing manual valve 10, an output shaft 21a of an air motor 21 using an air pressure as a drive source, and to remotely control the manual value 10. The valve remote control apparatus includes a solenoid valve (operating valve 53) operated by an operation signal transmitted and received wirelessly between a contact information terminal portion 51 and a contact information operating portion 52. The air pressure for driving and rotating the air motor 21 is supplied via the solenoid valve (operating valve 53).
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: June 27, 2017
    Assignee: Yokogawa Electric Corporation
    Inventors: Tetsuo Inagaki, Hitoshi Saito
  • Publication number: 20170170666
    Abstract: A charging current setting method includes an upper limit temperature recognition step which recognizes an upper limit temperature of the secondary battery (11), an actual temperature recognition step which recognizes an actual temperature of the secondary battery (11), a maximum power recognition step which recognizes an maximum power according to a heat quantity which the secondary battery (11) allows during a charge period based on a difference between the upper limit temperature and the actual temperature, a thermal resistance of the secondary battery (11), and a length of a predetermined period and the charge period, and a current setting step which sets a charge current to be an upper limit value or less by recognizing the upper limit value of the charge current of the secondary battery (11) based on an endothermic and exothermic characteristics map of the secondary battery (11) with respect to current and the maximum power.
    Type: Application
    Filed: November 16, 2016
    Publication date: June 15, 2017
    Inventors: Shinya Watanabe, Hitoshi Saito, Yasuhisa Saito, Hironori Sawamura
  • Patent number: 9678346
    Abstract: A head-mounted display device includes: an image display unit including an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to the eye of a user, the image display unit being for causing the user to visually recognize a virtual image; and a control unit that includes an operation surface, is connected to the image display unit, and controls image display by the image display unit. When it is assumed that the user shifts the user's attention from the virtual image, the control unit adjusts the luminance of the image-light generating unit or adjusts the image light generated by the image-light generating unit to reduce the visibility of the virtual image.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: June 13, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuji Nakada, Hitoshi Saito
  • Patent number: 9588345
    Abstract: A head-mounted display device includes: an image display unit including an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to the eye of a user, the image display unit being for causing the user to visually recognize a virtual image; and a control unit that includes an operation surface, is connected to the image display unit, and controls image display by the image display unit. When it is assumed that the user shifts the user's attention from the virtual image, the control unit adjusts the luminance of the image-light generating unit or adjusts the image light generated by the image-light generating unit to reduce the visibility of the virtual image.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: March 7, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuji Nakada, Hitoshi Saito
  • Patent number: 9547372
    Abstract: When a hand of the user is recognized in an image pickup region of a camera, a head mounted display stores a contour shape of the hand which would be imaged by the camera in advance. In addition, the head mounted display receives an input of image data per pixel included in the camera, calculates a difference between colors of adjacent pixels represented by the image data, sets a set of image data having the same color system, where the calculated difference is within a predetermined threshold, as a group, and captures a contour of a region of the data. Next, the head mounted display compares the captured contour to a contour shape of the hand which is stored in advance to allow the user to recognize the hand of the user in the image pickup region.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 17, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hitoshi Saito
  • Patent number: 9541577
    Abstract: Provided is a current application device capable of applying a test current of a magnitude necessary for testing of a semiconductor element without any trouble. A current application device 1 is configured to have a contacting section having a plurality of projections 21 for contacting a contact region 24 inside an active region 23 of a semiconductor element 22 and applying the test current thereto, and a pressing section 3 which presses the contacting section 2 against the semiconductor element 22 such that each projection 21 contacts the contact region 24. A plurality of the projections 21 are arranged such that an arrangement density of outside projections 21 is larger than the arrangement density of inside projections 21.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: January 10, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Hasegawa, Shigeto Akahori, Shinya Maita, Hitoshi Saito, Yoko Yamaji
  • Publication number: 20160336742
    Abstract: The purpose of the present invention is to enable use of a solenoid-type electromagnetic valve (120) in a valve driving device (10) that performs wireless communication. A contact signal converter (110) that converts an on-off contact signal to a control signal for operating a solenoid-type electromagnetic valve (120) comprises an explosion protection barrier (115) which restricts the current of the control signal to be no more than a maximum current established for safety regarding solenoid-type electromagnetic valves (120), and a group of batteries (111), the number of which can ensure a voltage at which the voltage supplied via the explosion protection barrier (115) surpasses the operating voltage of the solenoid-type electromagnetic valve (120).
    Type: Application
    Filed: December 4, 2014
    Publication date: November 17, 2016
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hitoshi SAITO, Nobuhiro KANATANI
  • Patent number: 9482692
    Abstract: A magnetic field measuring device including: a vibrational probe unit having a probe that includes one or more material(s) whose intensity of magnetization is proportionate to an external magnetic field, a mechanical vibration source for the probe; a vibration detector detecting a vibration frequency and amplitude of the probe; an alternating-current magnetic field generator applying to the probe an alternating-current magnetic field; a direct-current external magnetic field generator applying a direct-current external magnetic field to the probe; a frequency modulation detector detecting frequency modulation occurring to the mechanical vibration of the probe; a direct-current external magnetic field controller adjusting the intensity of the direct-current external magnetic field applied to the probe; and a direct-current magnetic field determination unit determining a value of the direct-current magnetic field originating from a specimen.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 1, 2016
    Assignees: AKITA UNIVERSITY, OSAKA UNIVERSITY
    Inventors: Hitoshi Saito, Satoru Yoshimura, Yukinori Kinoshita, Hikaru Nomura, Ryoichi Nakatani