Patents by Inventor Yoshihiro Uehara
Yoshihiro Uehara 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: 20230119174Abstract: Provided is a rust-preventive composition showing excellent rust-preventive performance for plate joining parts such as doors of automotive bodies, the composition having sufficient corrosion resistance and being capable of preventing dripping from automotive bodies. A rust-preventive composition including: a rust-preventive additive; a wax having a melting point within the range of 60° C. to 130° C. selected from microcrystalline waxes and polyethylene-based or polypropylene-based synthetic waxes; bentonite; a hydrogenated oil; and two or more kinds of diluents having different viscosities; the rust-preventive additive being contained in an amount within the range of 12% by mass to 39% by mass with respect to the total composition, the bentonite being contained in an amount within the range of 2% by mass to 6% by mass with respect to the total composition, the wax being contained in an amount within the range of 3% by mass to 13% by mass with respect to the total composition.Type: ApplicationFiled: January 27, 2021Publication date: April 20, 2023Inventors: Yoshihiro Uehara, Yuya Hasebe, Yoshisuke Mimata, Toshihisa Kataoka, Takahisa Sudou, Masahiro Nakamura
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Publication number: 20120301242Abstract: Provided is a method of manufacturing a workpiece, which is capable of processing a workpiece in one processing with high precision. The method of manufacturing includes: changing a relative orientation of a unit removal shape and the workpiece; setting relative positions of a rotation shaft of a rotating polishing tool and the workpiece so as to have a relative orientation having a smallest difference among differences between a calculated removal shape and a target removal shape determined for each of the relative orientations; and processing the workpiece at a relative speed in accordance with a dwell-time distribution. The method of manufacturing is capable of processing the workpiece with little error in one scanning for processing, and hence it is possible to increase precision of a workpiece surface and improve processing efficiency by reducing the number of repetition of the processing.Type: ApplicationFiled: May 10, 2012Publication date: November 29, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Yoshihiro Uehara
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Patent number: 7758741Abstract: There is here disclosed a nozzle type ELID grinding apparatus comprising a conductive grindstone 12 having a contact surface with a workpiece 1; and an ion supply nozzle 16 that supplies an electrolytic medium 2 containing hydroxyl ions (OH?) onto a surface of the conductive grindstone, the workpiece being ground while the surface of the grindstone is dressed by electrolysis or chemical reaction. Furthermore, the apparatus comprises a grindstone power source 14 for setting the conductive grindstone to be a positive potential (+).Type: GrantFiled: December 9, 2005Date of Patent: July 20, 2010Assignees: Riken, The NEXSYS CorporationInventors: Hitoshi Omori, Yoshihiro Uehara, Kazutoshi Katahira, Muneaki Asami, Norihide Mitsuishi, Souichi Ishikawa
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Patent number: 7685733Abstract: There is disclosed a micro surface shape measurement probe including a probe shaft 4 having at a distant end thereof a probe member 2 for contacting an object 1 to be measured, a probe body 21 provided with support means for movably supporting the probe shaft 4 in a non-contact manner, a pressing device for pressing and moving the probe shaft 4 toward the object 1 to be measured, a piezoelectric sensor 8a incorporated in the probe body 21 so that a reactive force acts to a pressing force applied to the probe shaft by the pressing device, a load detecting device 8b to measure a load acting on the piezoelectric sensor, a control device 9 for adjusting the pressing force applied by the pressing device based on the load detected by the load detecting device, and a displacement amount measuring device for measuring a position of the probe member 2 in contact with the object 1 to be measured by the pressing force adjusted by the control device 9.Type: GrantFiled: December 4, 2006Date of Patent: March 30, 2010Assignee: RikenInventors: Hitoshi Ohmori, Yutaka Watanabe, Shinya Morita, Yoshihiro Uehara, Weimin Lin, Kazutoshi Katahira
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Publication number: 20080067704Abstract: The micro-molding equipment contains a preform molding equipment 10 taking a single-cavity of a preform material 3 corresponding to a small precision optical component to be molded with a runnerless mold, and a precision compression molding equipment 40 for after molding the preform material 3 by primary compression molding in a vacuum state, cooling the preform material to a temperature near a glass transition point, and then re-softening a surface layer of the preform material and molding the same by secondary compression molding to transfer the small precision optical component thereto.Type: ApplicationFiled: October 18, 2005Publication date: March 20, 2008Applicants: RIKEN, THE NEXSYS CORPORATION, SAN SEIMITSU KAKO LAB., LTD., IKEGAMI MOLD ENGINEERING CO., LTD., ASTOM R&DInventors: Hitoshi Ohmori, Yoshihiro Uehara, Weimin Lin, Hatsuichi Takeyasu, Masao Washio, Keizo Ikegami, Takeya Shoji, Tomoaki Ando, Yukihiro Shirataki
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Publication number: 20070126314Abstract: There is disclosed a micro surface shape measurement probe including a probe shaft 4 having at a distant end thereof a probe member 2 for contacting an object 1 to be measured, a probe body 21 provided with support means for movably supporting the probe shaft 4 in a non-contact manner, a pressing device for pressing and moving the probe shaft 4 toward the object 1 to be measured, a piezoelectric sensor 8a incorporated in the probe body 21 so that a reactive force acts to a pressing force applied to the probe shaft by the pressing device, a load detecting device 8b to measure a load acting on the piezoelectric sensor, a control device 9 for adjusting the pressing force applied by the pressing device based on the load detected by the load detecting device, and a displacement amount measuring device for measuring a position of the probe member 2 in contact with the object 1 to be measured by the pressing force adjusted by the control device 9.Type: ApplicationFiled: December 4, 2006Publication date: June 7, 2007Applicant: RIKENInventors: Hitoshi Ohmori, Yutaka Watanabe, Shinya Morita, Yoshihiro Uehara, Weimin Lin, Kazutoshi Katahira
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Patent number: 7106528Abstract: A method of manufacturing a large double-sided curved Fresnel lens. The method includes a machining step (A) of performing ultra-precise three-dimensional machining on an upper mold and a lower mold to each have an upper transfer surface and a lower transfer surface engaging an upper surface and a lower surface of a thermoplastic resin plate, respectively. Further, the method includes a hot press molding step (B) of pressing the thermoplastic resin plate between the upper and lower molds by a predetermined pressure with the resin plate being held at a temperature higher than a softening temperature thereof and lower than a melting temperature thereof so that the thermoplastic resin plate is curved, and both lens surfaces for the double-sided Fresnel lens are respectively transferred to an upper surface and a lower surface of the thermoplastic resin plate.Type: GrantFiled: December 3, 2002Date of Patent: September 12, 2006Assignee: RikenInventors: Hitoshi Ohmori, Yoshihiro Uehara, Yoshiyuki Ueno, Yutaka Yamagata, Shinya Morita
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Publication number: 20060124473Abstract: There is here disclosed a nozzle type ELID grinding apparatus comprising a conductive grindstone 12 having a contact surface with a workpiece 1; and an ion supply nozzle 16 that supplies an electrolytic medium 2 containing hydroxyl ions (OH?) onto a surface of the conductive grindstone, the workpiece being ground while the surface of the grindstone is dressed by electrolysis or chemical reaction. Furthermore, the apparatus comprises a grindstone power source 14 for setting the conductive grindstone to be a positive potential (+).Type: ApplicationFiled: December 9, 2005Publication date: June 15, 2006Applicants: Riken, The Nexsys CorporationInventors: Hitoshi Omori, Yoshihiro Uehara, Kazutoshi Katahira, Muneaki Asami, Norihide Mitsuishi, Souichi Ishikawa
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Publication number: 20050007682Abstract: A method of manufacturing a large double-sided curved Fresnel lens. The method includes a machining step (A) of performing ultra-precise three-dimensional machining on an upper mold and a lower mold to each have an upper transfer surface and a lower transfer surface engaging an upper surface and a lower surface of a thermoplastic resin plate, respectively. Further, the method includes a hot press molding step (B) of pressing the thermoplastic resin plate between the upper and lower molds by a predetermined pressure with the resin plate being held at a temperature higher than a softening temperature thereof and lower than a melting temperature thereof so that the thermoplastic resin plate is curved, and both lens surfaces for the double-sided Fresnel lens are respectively transferred to an upper surface and a lower surface of the thermoplastic resin plate.Type: ApplicationFiled: December 3, 2002Publication date: January 13, 2005Inventors: Hitoshi Ohmori, Yoshihiro Uehara, Yoshiyuki Ueno, Yukata Yamagata, Shinya Morita