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).
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Publication number: 20240367909Abstract: A tray transport apparatus comprises a reception portion configured to receive a container configured to accommodate a stack formed by stacking a plurality of trays, an accommodation portion configured to accommodate the stack, the accommodation portion being disposed above the reception portion, a transfer unit configured to lift the stack from the container to separate the stack from the container and transfer the stack to the accommodation portion, and a transport unit configured to unload a tray located at a lowermost portion of the stack accommodated in the accommodation portion.Type: ApplicationFiled: July 16, 2024Publication date: November 7, 2024Applicant: HIRATA CORPORATIONInventors: Shuichi Komuro, Yoichi Hirasawa
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Patent number: 10919710Abstract: 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: GrantFiled: April 19, 2018Date of Patent: February 16, 2021Assignee: HIRATA CORPORATIONInventors: Yoichi Hirasawa, Shuichi Komuro
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Patent number: 10106336Abstract: 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: GrantFiled: June 24, 2015Date of Patent: October 23, 2018Assignee: HIRATA CORPORATIONInventors: Yoichi Hirasawa, Masaki Sotome, Kazuhiro Arai
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Publication number: 20180244480Abstract: 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: ApplicationFiled: April 19, 2018Publication date: August 30, 2018Applicant: HIRATA CORPORATIONInventors: Yoichi HIRASAWA, Shuichi KOMURO
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Patent number: 9422118Abstract: 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: GrantFiled: December 26, 2014Date of Patent: August 23, 2016Assignee: HIRATA CORPORATIONInventor: Yoichi Hirasawa
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Patent number: 9193531Abstract: 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: GrantFiled: December 5, 2013Date of Patent: November 24, 2015Assignee: HIRATA CORPORATIONInventors: Yoichi Hirasawa, Katsuyoshi Tachibana, Soichi Tateno, Toshihito Seki
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Publication number: 20150291371Abstract: 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: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Applicant: HIRATA CORPORATIONInventors: Yoichi HIRASAWA, Masaki SOTOME, Kazuhiro ARAI
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Patent number: 9051130Abstract: 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: GrantFiled: March 7, 2013Date of Patent: June 9, 2015Assignee: HIRATA CORPORATIONInventor: Yoichi Hirasawa
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Publication number: 20150117999Abstract: 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: ApplicationFiled: December 26, 2014Publication date: April 30, 2015Applicant: Hirata CorporationInventor: Yoichi Hirasawa
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Publication number: 20140083818Abstract: 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: ApplicationFiled: December 5, 2013Publication date: March 27, 2014Applicant: HIRATA CORPORATIONInventors: Yoichi HIRASAWA, Katsuyoshi TACHIBANA, Soichi TATENO, Toshihito SEKI
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Publication number: 20130259628Abstract: 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: ApplicationFiled: March 7, 2013Publication date: October 3, 2013Applicant: Hirata CorporationInventor: Yoichi Hirasawa
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Patent number: 8529185Abstract: 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: GrantFiled: August 31, 2005Date of Patent: September 10, 2013Assignee: Hirata CorporationInventors: Yoichi Hirasawa, Katsuo Saito, Yoji Shinozaki, Motoyasu Ohata, Toshihiko Watanabe
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Publication number: 20090265031Abstract: 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: ApplicationFiled: September 27, 2007Publication date: October 22, 2009Applicant: HIRATA CORPORATIONInventors: Katsuyoshi Tachibana, Motoyasu Ohata, Yoichi Hirasawa, Hiroshi Okubo, Mitsuhiro Kato
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Publication number: 20090148261Abstract: 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: ApplicationFiled: August 21, 2005Publication date: June 11, 2009Inventors: Yoichi Hirasawa, Katsuo Saito, Yoji Shinozaki, Motoyasu Ohata, Toshihiko Watanabe
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Patent number: 7503451Abstract: 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: GrantFiled: July 22, 2004Date of Patent: March 17, 2009Assignee: Hirata CorporationInventors: Yoichi Hirasawa, Tetsuya Kimura
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Publication number: 20080102677Abstract: 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: ApplicationFiled: December 20, 2007Publication date: May 1, 2008Applicant: HIRATA CORPORATIONInventors: Hideo Sakamoto, Yoichi Hirasawa, Shawn Turner
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Publication number: 20070261938Abstract: 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: ApplicationFiled: July 22, 2004Publication date: November 15, 2007Inventors: Yoichi Hirasawa, Tetsuya Kimura
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Patent number: 6899752Abstract: 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: GrantFiled: May 16, 2003Date of Patent: May 31, 2005Assignees: Fujitsu Limited, Fujitsu Isotec LimitedInventors: Chiaki Sekioka, Muneo Maetani, Yoichi Hirasawa
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Publication number: 20030220419Abstract: 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: ApplicationFiled: May 16, 2003Publication date: November 27, 2003Inventors: Chiaki Sekioka, Muneo Maetani, Yoichi Hirasawa
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Patent number: 5580192Abstract: 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: GrantFiled: May 24, 1995Date of Patent: December 3, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kinya Ogawa, Yoichi Hirasawa, Takao Oshima, Yoshiaki Nishimura