Patents by Inventor Masayoshi Yokoo

Masayoshi Yokoo 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: 10527669
    Abstract: An IC device 4 of the present invention includes a robot arm 6 for conveying IC devices D to a test head 2 for testing the IC devices. The test head 2 includes sockets 3 having placement surfaces 3a onto which the IC devices D are placed and for attaching the IC devices placed on the placement surfaces to the test head. The robot arm 6 includes a contact head 61 for holding the IC devices while the IC devices are conveyed and for pressing the IC devices onto the test head during testing, and a non-contact displacement meter 71 that moves in association with the movement of the contact head 61. The non-contact displacement meter 71 is mounted on the robot arm 6 so as to measure a distance by emitting a beam in a direction perpendicular to the placement surfaces 3a.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: January 7, 2020
    Assignee: HappyJapan, Inc.
    Inventors: Shouhei Matsumoto, Shinichi Hasebe, Mitsuo Koizumi, Yoshinori Arai, Masayoshi Yokoo, Keitaro Harada
  • Patent number: 10473715
    Abstract: An IC handler (4) of the present invention is provided with: a contact head (7), which holds a plurality of IC devices, and which presses the IC devices to a plurality of sockets (3); and a movable arm (6) that moves the contact head (7). The movable arm (6) has power supply ports (VO, HO) that are connected to supply sources (VS, HS) of power for generating operations of the contact head (7), and the contact head (7) has a plurality of operating sections (70) that operate with the power, and a supporting section (71), which supports the operating sections (70), and which is removably attached to the movable arm (6). The supporting section (71) of the contact head (7) has: connecting ports (VC, HC) that are removably connected to the supply ports (VO, HO); and supply paths (71a, 71d) for supplying the power to the operating sections (70) from the connecting ports (VC, HC) connected to the supply ports (VO, HO).
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: November 12, 2019
    Assignee: HappyJapan Inc.
    Inventors: Shouhei Matsumoto, Yoshinori Arai, Satoshi Ueno, Keitaro Harada, Masayoshi Yokoo
  • Patent number: 10222413
    Abstract: An IC handler (4) of the present invention transfers an IC device (D) to a test head (2). The test head (2) is provided with a socket (3), which has a placing surface (3a) having the IC device (D) placed thereon, and which attaches the IC device (D) placed on the placing surface (3a) to the test head (2). The IC handler (4) is provided with a non-contact displacement meter (71) that is disposed by being spaced apart from the socket (3) in the direction perpendicular to the placing surface (3a). The non-contact displacement meter (71) measures a distance from the non-contact displacement meter (71) to the IC device (D) placed on the placing surface (3a) by emitting a laser beam toward the placing surface (3a) of the socket (3).
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: March 5, 2019
    Assignee: HappyJapan Inc.
    Inventors: Shouhei Matsumoto, Mitsuo Koizumi, Fumiaki Togashi, Satoshi Ueno, Keitaro Harada, Masayoshi Yokoo
  • Publication number: 20180267097
    Abstract: An IC device 4 of the present invention includes a robot arm 6 for conveying IC devices D to a test head 2 for testing the IC devices. The test head 2 includes sockets 3 having placement surfaces 3a onto which the IC devices D are placed and for attaching the IC devices placed on the placement surfaces to the test head. The robot arm 6 includes a contact head 61 for holding the IC devices while the IC devices are conveyed and for pressing the IC devices onto the test head during testing, and a non-contact displacement meter 71 that moves in association with the movement of the contact head 61. The non-contact displacement meter 71 is mounted on the robot arm 6 so as to measure a distance by emitting a beam in a direction perpendicular to the placement surfaces 3a.
    Type: Application
    Filed: August 31, 2015
    Publication date: September 20, 2018
    Inventors: Shouhei Matsumoto, Shinichi Hasebe, Mitsuo Koizumi, Yoshinori Arai, Masayoshi Yokoo, Keitaro Harada
  • Publication number: 20160370424
    Abstract: An IC handler (4) of the present invention is provided with: a contact head (7), which holds a plurality of IC devices, and which presses the IC devices to a plurality of sockets (3); and a movable arm (6) that moves the contact head (7). The movable arm (6) has power supply ports (VO, HO) that are connected to supply sources (VS, HS) of power for generating operations of the contact head (7), and the contact head (7) has a plurality of operating sections (70) that operate with the power, and a supporting section (71), which supports the operating sections (70), and which is removably attached to the movable arm (6). The supporting section (71) of the contact head (7) has: connecting ports (VC, HC) that are removably connected to the supply ports (VO, HO); and supply paths (71a, 71d) for supplying the power to the operating sections (70) from the connecting ports (VC, HC) connected to the supply ports (VO, HO).
    Type: Application
    Filed: December 3, 2013
    Publication date: December 22, 2016
    Inventors: Shouhei Matsumoto, Yoshinori Arai, Satoshi Ueno, Keitaro Harada, Masayoshi Yokoo
  • Publication number: 20160356843
    Abstract: An IC handler (4) of the present invention transfers an IC device (D) to a test head (2). The test head (2) is provided with a socket (3), which has a placing surface (3a) having the IC device (D) placed thereon, and which attaches the IC device (D) placed on the placing surface (3a) to the test head (2). The IC handler (4) is provided with a non-contact displacement meter (71) that is disposed by being spaced apart from the socket (3) in the direction perpendicular to the placing surface (3a). The non-contact displacement meter (71) measures a distance from the non-contact displacement meter (71) to the IC device (D) placed on the placing surface (3a) by emitting a laser beam toward the placing surface (3a) of the socket (3).
    Type: Application
    Filed: December 3, 2013
    Publication date: December 8, 2016
    Inventors: Shouhei Matsumoto, Mitsuo Koizumi, Fumiaki Togashi, Satoshi Ueno, Keitaro Harada, Masayoshi Yokoo
  • Patent number: 9260780
    Abstract: This is a thin film forming apparatus which is equipped with a target constructed of a thin film material, a cathode for generating a particulate thin film material from the target, a supporting member for supporting the substrate on which the particulate thin film material is to be deposited, a heater for heating the substrate, and a guide for introducing the particulate thin film material onto a surface of the substrate where the thin film material is deposited, wherein the supporting member supports the substrate so as to expose the first principal surface and its backside (second principal surface) of the substrate, the target is disposed in a position for producing the particulate thin film material in an extension of the first principal surface of the substrate, and the guide is disposed on the first principal surface and the second principal surface of the substrate.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: February 16, 2016
    Assignee: TOHOKU SEIKI INDUSTRIES, LTD.
    Inventors: Masanobu Kusunoki, Keitaro Harada, Masayoshi Yokoo, Yoshinobu Takano
  • Patent number: 8662437
    Abstract: When current collecting wires are laid in parallel with each other on a solar cell on which a photosensitive film is formed, a wire tension adjusting mechanism is provided which includes a bobbin holder shaft pivotally held on the side of a frame in a bobbin cassette in a wiring apparatus and a wire bobbin is detachably fixed on the bobbin holder shaft. The wire tension adjusting mechanism further includes a pre-load means for adjusting the torque of the bobbin holder shaft and the tension of each current collecting wire to be drawn out from the wire bobbin held by the bobbin shaft is adjusted.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: March 4, 2014
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Keitaro Harada, Masayoshi Yokoo, Koichi Yoshida, Akio Murakami
  • Patent number: 8597479
    Abstract: A magnetron sputtering system generates a high density plasma on a target by applying magnetic fields intersecting an electric field by using a plurality of magnets that are rotatably supported. The respective magnets are revolved and rotated so that the time variation of regions where a magnetic field (line of magnetic force) generated by the each magnet is orthogonal to an electric field is prevented from becoming monotonous. Further, the respective magnets are arranged to make the distances between the center of rotation and the center of revolution of the respective magnets different from each other, so that the regions where the magnetic field (line of magnetic force) generated by the each magnet is orthogonal to the electric field are dispersed in the radial direction of a target.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: December 3, 2013
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Keitaro Harada, Masayoshi Yokoo, Norikazu Kainuma, Yoshinobu Takano, Isao Tanikawa
  • Patent number: 8591706
    Abstract: A sputtering system for depositing a thin film on the surface of a disc substrate in which high precision positioning of an inner mask and an outer mask is facilitated. The sputtering system has a mask member placed on the surface of the substrate mounted on a substrate holder to cover a partial region on the surface of the substrate. A thin film is deposited by sputtering in a region on the surface of the substrate not covered by the mask member. A section for carrying in and carrying out the substrate has mechanically holds and releases the substrate holder mounting the substrate, and mechanically holds and releases the mask member.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: November 26, 2013
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Masayoshi Yokoo, Isao Tanikawa, Norikazu Kainuma, Yoshinobu Takano
  • Publication number: 20130280855
    Abstract: To obtain high-quality chalcopyrite particles having a small particle size using a relatively inexpensive raw material in a simple and easy process in which complicated equipment (such as vacuum equipment) is not necessary. Provided is a method for producing a compound having a chalcopyrite structure represented by a compositional formula: ABC2, the method including: a step of dissolving a Group 11 element A, a Group 13 element B, and a Group 16 element C of the periodic table in a solvent to prepare a solution; and a step of contacting the solution with a reducing agent.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 24, 2013
    Applicant: TOHOKU SEIKI INDUSTRIES, CO., LTD.
    Inventors: Koji Moriya, Jiro Nagaoka, Yoshinobu Takano, Yuuki Sano, Keitaro Harada, Masayoshi Yokoo
  • Patent number: 8506231
    Abstract: A handler includes a device holding portion, which holds an uninspected device and loads the device in a measuring socket on a device tester, having a suction means for sucking the device by a very weak pushing force at the time of sucking the device from an uninspection tray and for loading the device in a measuring socket and also having a clamper capable of outputting a pushing force which can be changed at the time of the measurement contact. The device holding portion includes a position correcting mechanism for making a device position correction executed by an image recognizing and position correcting means.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 13, 2013
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma
  • Patent number: 8322509
    Abstract: A solar cell module conveyer comprising an assembly line for intermittently feeding solar cells that constitute a solar cell module, and having machinery arranged for successively executing the working/treating steps; belt conveyers working as an inspection line which is synchronized with the assembly line to inspect the solar cell module fabricated on the assembly line through various working/treatment steps; and a transfer mechanism for transferring the solar cell module from the assembly line onto the belt conveyers.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: December 4, 2012
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma, Akio Murakami
  • Patent number: 8093853
    Abstract: A device-positioning pedestal capable of positioning devices of different sizes. The device-positioning pedestal comprises a plurality of guide members corresponding to the sides of the device and coming in contact with the sides of the device to position the device, at least one guide member includes a slide mechanism that supports the guide member so as to slide relative to the device-positioning pedestal member and a fixing mechanism that fixes the guide members at desired positions. The guide members are set to be adapted to the size of the device by the guide member-adjusting means separate from the device-positioning pedestal. The guide member-adjusting means adjust the position of the guide members based on the size of the device measured by device size-measuring means separate from the guide member-adjusting means or based on the data of data-recording means attached to the device-positioning pedestal.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: January 10, 2012
    Assignee: Tohoku Seiki Industries, Ltd.
    Inventors: Keitaro Harada, Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma
  • Publication number: 20110049286
    Abstract: When current collecting wires are laid in parallel with each other on a solar cell on which a photosensitive film is formed, a wire tension adjusting mechanism is provided which includes a bobbin holder shaft pivotally held on the side of a frame in a bobbin cassette in a wiring apparatus and a wire bobbin is detachably fixed on the bobbin holder shaft. The wire tension adjusting mechanism further includes a pre-load means for adjusting the torque of the bobbin holder shaft and the tension of each current collecting wire to be drawn out from the wire bobbin held by the bobbin shaft is adjusted.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 3, 2011
    Applicant: Tohoku Seiki Industries, Ltd.
    Inventors: Keitaro Harada, Masayoshi Yokoo, Koichi Yoshida, Akio Murakami
  • Publication number: 20100300834
    Abstract: A solar cell module conveyer comprising an assembly line for intermittently feeding solar cells that constitute a solar cell module, and having machinery arranged for successively executing the working/treating steps; belt conveyers working as an inspection line which is synchronized with the assembly line to inspect the solar cell module fabricated on the assembly line through various working/treatment steps; and a transfer mechanism for transferring the solar cell module from the assembly line onto the belt conveyers.
    Type: Application
    Filed: September 7, 2007
    Publication date: December 2, 2010
    Inventors: Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma, Akio Murakami
  • Publication number: 20100104404
    Abstract: A handler includes a device holding portion, which holds an uninspected device and loads the device in a measuring socket on a device tester, having a suction means for sucking the device by a very weak pushing force at the time of sucking the device from an uninspection tray and for loading the device in a measuring socket and also having a clamper capable of outputting a pushing force which can be changed at the time of the measurement contact. The device holding portion includes a position correcting mechanism for making a device position correction executed by an image recognizing and position correcting means.
    Type: Application
    Filed: March 16, 2007
    Publication date: April 29, 2010
    Applicant: TOHOKU SEIKI INDUSTRIES, LTD.
    Inventors: Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma
  • Publication number: 20100006422
    Abstract: A sputtering system for depositing a thin film on the surface of a disc substrate in which high precision positioning of an inner mask and an outer mask is facilitated. The sputtering system has a mask member placed on the surface of the substrate mounted on a substrate holder to cover a partial region on the surface of the substrate. A thin film is deposited by sputtering in a region on the surface of the substrate not covered by the mask member. A section for carrying in and carrying out the substrate has mechanically holds and releases the substrate holder mounting the substrate, and mechanically holds and releases the mask member.
    Type: Application
    Filed: March 28, 2006
    Publication date: January 14, 2010
    Inventors: Masayoshi Yokoo, Isao Tanikawa, Norikazu Kainuma, Yoshinobu Takano
  • Publication number: 20090206224
    Abstract: A device-positioning pedestal capable of positioning devices of different sizes. The device-positioning pedestal comprises a plurality of guide members corresponding to the sides of the device and coming in contact with the sides of the device to position the device, at least one guide member includes a slide mechanism that supports the guide member so as to slide relative to the device-positioning pedestal member and a fixing mechanism that fixes the guide members at desired positions. The guide members are set to be adapted to the size of the device by the guide member-adjusting means separate from the device-positioning pedestal. The guide member-adjusting means adjust the position of the guide members based on the size of the device measured by device size-measuring means separate from the guide member-adjusting means or based on the data of data-recording means attached to the device-positioning pedestal.
    Type: Application
    Filed: July 8, 2005
    Publication date: August 20, 2009
    Inventors: Keitaro Harada, Masayoshi Yokoo, Koichi Yoshida, Norikazu Kainuma
  • Publication number: 20090026073
    Abstract: A plurality of magnets are rotatably supported and when a ratio between revolution angle and rotation angle per unit time is set to 1:R, R is set to a value which is not less than 1 and not more than 5, and is not a common divisor of 360, so that the time variation of regions where a magnetic field (line of magnetic force) generated by the each magnet is orthogonal to an electric field is prevented from becoming monotonous. Further, the respective magnets are arranged to make the distances between the center of rotation and the center of revolution of the respective magnets different from each other, so that the regions where the magnetic field (line of magnetic force) generated by the each magnet is orthogonal to the electric field are dispersed in the radial direction of a target.
    Type: Application
    Filed: February 8, 2005
    Publication date: January 29, 2009
    Inventors: Keitaro Harada, Masayoshi Yokoo, Norikazu Kainuma, Yoshinobu Takano, Isao Tanikawa