Patents by Inventor Yoichi Hirasawa

Yoichi Hirasawa 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: 10919710
    Abstract: A distorted substrate is positioned in a predetermined position and corrected, thereby improving the substrate transfer efficiency. A transport unit capable of transporting and positioning a substrate includes a transport mechanism for transporting the substrate to an unloading position, and a positioning mechanism for positioning the substrate in the unloading position. The positioning mechanism includes a regulating member including at least two pairs of regulating portions capable of abutting against the opposing end faces of the substrate, an abutment moving mechanism for moving one regulating portion toward the other regulating portion in each of the at least two pairs of regulating portions, and a regulation moving mechanism capable of moving the regulating member in a direction in which the substrate is pressed.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: February 16, 2021
    Assignee: HIRATA CORPORATION
    Inventors: Yoichi Hirasawa, Shuichi Komuro
  • Patent number: 10106336
    Abstract: The present invention provides a system that transports a tray in a horizontal attitude, the tray including a plurality of work placement portions arranged in a matrix. The system includes first and second transport units, a transfer device transferring the tray between the first transport unit and the second transport unit, a shooting unit including a line sensor shooting, between the first transport unit and the second transport unit, an image of the tray transferred by the transfer device and a moving device moving the transfer device and the shooting unit in a direction to traverse a plurality of transport lines of the first transport unit.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 23, 2018
    Assignee: HIRATA CORPORATION
    Inventors: Yoichi Hirasawa, Masaki Sotome, Kazuhiro Arai
  • Publication number: 20180244480
    Abstract: A distorted substrate is positioned in a predetermined position and corrected, thereby improving the substrate transfer efficiency. A transport unit capable of transporting and positioning a substrate includes a transport mechanism for transporting the substrate to an unloading position, and a positioning mechanism for positioning the substrate in the unloading position. The positioning mechanism includes a regulating member including at least two pairs of regulating portions capable of abutting against the opposing end faces of the substrate, an abutment moving mechanism for moving one regulating portion toward the other regulating portion in each of the at least two pairs of regulating portions, and a regulation moving mechanism capable of moving the regulating member in a direction in which the substrate is pressed.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 30, 2018
    Applicant: HIRATA CORPORATION
    Inventors: Yoichi HIRASAWA, Shuichi KOMURO
  • Patent number: 9422118
    Abstract: The present invention provides a transport unit comprising a base member, a transport mechanism and a positioning mechanism. The base member includes a bottom wall extending in a transport direction and a pair of side walls standing upright from two side portions, respectively, of the bottom wall. The transport mechanism is supported by the base member and transports an object to be transported. The positioning mechanism is supported by the base member, and positions the object relative to the base member.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: August 23, 2016
    Assignee: HIRATA CORPORATION
    Inventor: Yoichi Hirasawa
  • Patent number: 9193531
    Abstract: A component transfer device according to the present invention includes a holding mechanism that positions and holds a component on a carrying surface located at a predetermined height and a pull-out unit that pulls out the component held on the carrying surface by the holding mechanism in a horizontal direction. The pull-out unit includes a grasping member that can separably grasp the component from a vertical direction, a cam member that causes the grasping member to perform a component grasping operation and a component releasing operation at predetermined timings by exercising a cam function to the grasping member, a driving mechanism that drives the cam member and the grasping member, and a restraint mechanism that restrains a relative movement of the cam member with respect to the movable holder upon grasping operation.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 24, 2015
    Assignee: HIRATA CORPORATION
    Inventors: Yoichi Hirasawa, Katsuyoshi Tachibana, Soichi Tateno, Toshihito Seki
  • Publication number: 20150291371
    Abstract: The present invention provides a system that transports a tray in a horizontal attitude, the tray including a plurality of work placement portions arranged in a matrix. The system includes first and second transport units, a transfer device transferring the tray between the first transport unit and the second transport unit, a shooting unit including a line sensor shooting, between the first transport unit and the second transport unit, an image of the tray transferred by the transfer device and a moving device moving the transfer device and the shooting unit in a direction to traverse a plurality of transport lines of the first transport unit.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Applicant: HIRATA CORPORATION
    Inventors: Yoichi HIRASAWA, Masaki SOTOME, Kazuhiro ARAI
  • Patent number: 9051130
    Abstract: The present invention provides a transport unit comprising a base member, a transport mechanism and a positioning mechanism. The base member includes a bottom wall extending in a transport direction and a pair of side walls standing upright from two side portions, respectively, of the bottom wall. The transport mechanism is supported by the base member and transports an object to be transported. The positioning mechanism is supported by the base member, and positions the object relative to the base member.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 9, 2015
    Assignee: HIRATA CORPORATION
    Inventor: Yoichi Hirasawa
  • Publication number: 20150117999
    Abstract: The present invention provides a transport unit comprising a base member, a transport mechanism and a positioning mechanism. The base member includes a bottom wall extending in a transport direction and a pair of side walls standing upright from two side portions, respectively, of the bottom wall. The transport mechanism is supported by the base member and transports an object to be transported. The positioning mechanism is supported by the base member, and positions the object relative to the base member.
    Type: Application
    Filed: December 26, 2014
    Publication date: April 30, 2015
    Applicant: Hirata Corporation
    Inventor: Yoichi Hirasawa
  • Publication number: 20140083818
    Abstract: A component transfer device according to the present invention includes a holding mechanism that positions and holds a component on a carrying surface located at a predetermined height and a pull-out unit that pulls out the component held on the carrying surface by the holding mechanism in a horizontal direction. The pull-out unit includes a grasping member that can separably grasp the component from a vertical direction, a cam member that causes the grasping member to perform a component grasping operation and a component releasing operation at predetermined timings by exercising a cam function to the grasping member, a driving mechanism that drives the cam member and the grasping member, and a restraint mechanism that restrains a relative movement of the cam member with respect to the movable holder upon grasping operation.
    Type: Application
    Filed: December 5, 2013
    Publication date: March 27, 2014
    Applicant: HIRATA CORPORATION
    Inventors: Yoichi HIRASAWA, Katsuyoshi TACHIBANA, Soichi TATENO, Toshihito SEKI
  • Publication number: 20130259628
    Abstract: The present invention provides a transport unit comprising a base member, a transport mechanism and a positioning mechanism. The base member includes a bottom wall extending in a transport direction and a pair of side walls standing upright from two side portions, respectively, of the bottom wall. The transport mechanism is supported by the base member and transports an object to be transported. The positioning mechanism is supported by the base member, and positions the object relative to the base member.
    Type: Application
    Filed: March 7, 2013
    Publication date: October 3, 2013
    Applicant: Hirata Corporation
    Inventor: Yoichi Hirasawa
  • Patent number: 8529185
    Abstract: A work handling apparatus includes a general-purpose tray holding unit which can move in the left and right direction while holding a general-purpose tray that accommodates works, a processing tray holding unit which is arranged adjacent to the rear side in the front and rear direction of the general-purpose tray holding unit and can move in the left and right direction while holding a processing tray for carrying works in and out of a processing area, and work transfer units which can move in the front and rear direction and the vertical direction so as to transfer works between the general-purpose tray and the processing tray. Thus, the general-purpose tray holding unit and the processing tray holding unit move in the Y direction within the XY plane, and the work transfer units move within the XZ plane, so that the work transfer operation can be increased in speed and the productivity is improved.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: September 10, 2013
    Assignee: Hirata Corporation
    Inventors: Yoichi Hirasawa, Katsuo Saito, Yoji Shinozaki, Motoyasu Ohata, Toshihiko Watanabe
  • Publication number: 20090265031
    Abstract: An automatic warehouse 1 includes a plurality of shelves 50 and a conveyance device 20. The plurality of shelves 50 are arranged in a horizontal direction and in a single level or in a plurality of levels and adapted to store storage objects. The conveyance device 20 is adapted to transfer the storage objects between the same and each of the plurality of shelves 50. All of the plurality of shelves 50 are implemented by a plurality of shelves 50 provided in a plurality of carriages 60 capable of moving between the inside of the automatic warehouse and the outside of the automatic warehouse. By use of the plurality of carriages 60 which also function as storage shelves, there can be provided an automatic warehouse having high degree of freedom and good storage efficiency, enabling efficient use of factory space, and being capable of coping with cell production.
    Type: Application
    Filed: September 27, 2007
    Publication date: October 22, 2009
    Applicant: HIRATA CORPORATION
    Inventors: Katsuyoshi Tachibana, Motoyasu Ohata, Yoichi Hirasawa, Hiroshi Okubo, Mitsuhiro Kato
  • Publication number: 20090148261
    Abstract: A work handling apparatus of the present invention includes a general-purpose tray holding unit (10) which can move in the left and right direction (Y) while holding a general-purpose tray (T1) that accommodates works, a processing tray holding unit (20) which is arranged adjacent to the rear side in the front and rear direction (X) of the general-purpose tray holding unit (10) and can move in the left and right direction (Y) while holding a processing tray (T2) for carrying works in and out a processing area (A4), and work transfer units (30) which can move in the front and rear direction (X) and the vertical direction (Z) so as to transfer works between the general-purpose tray (T1) and the processing tray (T2). Thus, the general-purpose tray holding unit (10) and the processing tray holding unit (20) move in the Y direction within the XY plane, and the work transfer units (30) move within the XZ plane, so that the work transfer operation can be increased in speed and the productivity is improved.
    Type: Application
    Filed: August 21, 2005
    Publication date: June 11, 2009
    Inventors: Yoichi Hirasawa, Katsuo Saito, Yoji Shinozaki, Motoyasu Ohata, Toshihiko Watanabe
  • Patent number: 7503451
    Abstract: It is an object of the present invention to provide a conveying apparatus which guides a conveying target object in the conveying direction while preventing it from falling off from rollers and in which intervals between the adjacent rollers can be narrowed.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: March 17, 2009
    Assignee: Hirata Corporation
    Inventors: Yoichi Hirasawa, Tetsuya Kimura
  • Publication number: 20080102677
    Abstract: This invention provides a pull-out device for pulling out a connector from an apparatus to which the connector is connected, including a pulling member having one end attached to the connector and the other end with a locking portion, a locking unit arranged to face the connector and to which the locking portion is locked, and a moving unit arranged to move the locking unit and the apparatus relative to each other so as to separate from each other in a pull-out direction of the connector, thereby causing the pulling member to generate tension that pulls out the connector, wherein the locking unit locks with the locking portion such that, as the tension is generated, the locking portion is freely movable within a plane substantially perpendicular to the pull-out direction.
    Type: Application
    Filed: December 20, 2007
    Publication date: May 1, 2008
    Applicant: HIRATA CORPORATION
    Inventors: Hideo Sakamoto, Yoichi Hirasawa, Shawn Turner
  • Publication number: 20070261938
    Abstract: It is an object of the present invention to provide a conveying apparatus which guides a conveying target object in the conveying direction while preventing it from falling off from rollers and in which intervals between the adjacent rollers can be narrowed.
    Type: Application
    Filed: July 22, 2004
    Publication date: November 15, 2007
    Inventors: Yoichi Hirasawa, Tetsuya Kimura
  • Patent number: 6899752
    Abstract: A latent image ink composition including an organic fluorescent substance which responds to an excitation wavelength range of 600-850 nm and emits fluorescence in a wavelength range of 651-900 nm, a quencher, and a curing resin composition, prints which comprise a substrate and a latent image formed from the ink composition on the substrate, and a latent image data deciphering apparatus and latent image data deciphering method, provided with an emitting element for irradiating the prints with the excitation wavelength, a receiving element for detecting the emission of fluorescence in the wavelength range emitted from the cured ink of the print, and a computer processor for deciphering the detected emission of fluorescence against a standard value. Discrimination of the genuineness of articles can be accomplished reliably without the knowledge of third parties.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: May 31, 2005
    Assignees: Fujitsu Limited, Fujitsu Isotec Limited
    Inventors: Chiaki Sekioka, Muneo Maetani, Yoichi Hirasawa
  • Publication number: 20030220419
    Abstract: A latent image ink composition comprising an organic fluorescent substance which responds to an excitation wavelength range of 600-850 nm and emits fluorescence in a wavelength range of 651-900 nm, a quencher, and a curing resin composition, prints which comprise a substrate and a latent image formed from the ink composition on the substrate, and a latent image data deciphering apparatus and latent image data deciphering method, provided with an emitting element for irradiating the prints with the excitation wavelength, a receiving element for detecting the emission of fluorescence in the wavelength range emitted from the cured ink of the print, and a computer processor for deciphering the detected emission of fluorescence against a standard value. Discrimination of the genuineness of articles can be accomplished reliably without the knowledge of third parties.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 27, 2003
    Inventors: Chiaki Sekioka, Muneo Maetani, Yoichi Hirasawa
  • Patent number: 5580192
    Abstract: An artificial soil structure includes at least one hydrophobic layer of hydrophobic particles provided in a soil. A particle size of the hydrophobic particles can be 2000 micrometers and less. The hydrophobic particles are sand and/or dirt treated with a water-repellent agent or hydrophobic particles having a high molecular weight polymer. An artificial water-retentive soil structure includes a soil block containing a water-retentive agent and a hydrophobic layer of hydrophobic particles provided on the soil block. A method of preventing land desertification includes the steps of placing a hydrophobic layer of hydrophobic particles in a soil at a prescribed depth from the earth surface and controlling the water content in said soil.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: December 3, 1996
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kinya Ogawa, Yoichi Hirasawa, Takao Oshima, Yoshiaki Nishimura
  • Patent number: 5472458
    Abstract: An artificial soil structure includes at least one hydrophobic layer of hydrophobic particles provided in a soil. A particle size of the hydrophobic particles can be 2000 micrometers and less. The hydrophobic particles are sand and/or dirt treated with a water-repellent agent or hydrophobic particles having a high molecular weight polymer. An artificial water-retentive soil structure includes a soil block containing a water-retentive agent and a hydrophobic layer of hydrophobic particles provided on the soil block. A method of preventing land desertification includes the steps of placing a hydrophobic layer of hydrophobic particles in a soil at a prescribed depth from the earth surface and controlling the water content in said soil.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: December 5, 1995
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kinya Ogawa, Yoichi Hirasawa, Takao Oshima, Yoshiaki Nishimura