Patents by Inventor Ryuta Nakajima
Ryuta Nakajima 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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Patent number: 11072508Abstract: A control apparatus of a web processing system that executes predetermined processing onto a web continuously existing along a movement passage, in which the web processing system includes a rotating body that rotates while being in contact with the web, and the control apparatus controls a rotation speed of the rotating body such that a circumferential speed of the rotating body at a contact surface with the web matches a transport speed of the web.Type: GrantFiled: September 24, 2019Date of Patent: July 27, 2021Assignees: SUMITOMO HEAVY INDUSTRIES, LTD., ASAHI KASEI KABUSHIKI KAISHAInventors: Kiyoto Miyoshi, Takatora Ando, Ryuta Nakajima, Keita Suzuki, Shinya Matsubara, Taishi Hitomi, Makoto Ikeda
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Publication number: 20200017328Abstract: A control apparatus of a web processing system that executes predetermined processing onto a web continuously existing along a movement passage, in which the web processing system includes a rotating body that rotates while being in contact with the web, and the control apparatus controls a rotation speed of the rotating body such that a circumferential speed of the rotating body at a contact surface with the web matches a transport speed of the web.Type: ApplicationFiled: September 24, 2019Publication date: January 16, 2020Applicants: SUMITOMO HEAVY INDUSTRIES, LTD., ASAHI KASEI KABUSHIKI KAISHAInventors: Kiyoto MIYOSHI, Takatora ANDO, Ryuta NAKAJIMA, Keita SUZUKI, Shinya MATSUBARA, Taishi HITOMI, Makoto IKEDA
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Patent number: 8517363Abstract: An XY stage device having an X-axis movable body which moves in the X-axis direction on a platen, and a Y-axis movable body which moves in the Y-axis direction on the platen and guides the movement of the X-axis movable body in the X-axis direction. The XY stage device includes a pair of actuators which can be provided so as to be separated from each other in the X-axis direction, and drives the Y-axis movable body in the Y-axis direction, a detector which detects the yawing angle that can be the angle of the Y-axis movable body in a rotational direction around the Z-axis, a controller which controls the driving of the pair of actuators on the basis of the yawing angle detected by the detector, and a pair of supporters which supports the Y-axis movable body on the platen.Type: GrantFiled: March 17, 2010Date of Patent: August 27, 2013Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Fuminori Makino, Yasushi Koyanagawa, Ryuta Nakajima
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Patent number: 8019448Abstract: The vibrations of a second table supported on a first table that is movable in one horizontal direction can be controlled. A stage device includes an XY axis table movable in the X-direction, a Z-axis table supported by a support portion on the XY axis table, a pair of scales that are arranged apart from each other in the X-direction and detect the Z-direction velocity on the Z-axis table, a pair of motors that are arranged apart from each other in the X-direction and drive the Z-axis table in a vertical direction on the Z-axis-table, and a controller controls the drives of the motors based on the Z-direction velocity detected, in which the behavior of pitching vibrations in the Z-axis table is determined by detecting the Z-direction velocity with the scales, and the motors are driven and then the Z-axis table is rotated in a pitching direction so that the pitching vibrations are cancelled.Type: GrantFiled: September 12, 2008Date of Patent: September 13, 2011Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Ryuta Nakajima, Hidehiko Mashimo
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Patent number: 7997567Abstract: A stage apparatus, includes a holding member configured to hold a subject; an elevation supporting member configured to support the holding member so that the holding member can go up and down; a rotation supporting member configured to support the elevation supporting member so that the elevation supporting member can be rotated with respect to a Z axis; and a Z axis driving part configured to elevate the holding member in a Z axial direction; wherein the Z axis driving part is located on the rotation supporting member and makes the holding member go up and down relative to the rotation supporting member.Type: GrantFiled: November 14, 2007Date of Patent: August 16, 2011Assignee: Sumitomo Heavy Industries, Ltd.Inventor: Ryuta Nakajima
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Patent number: 7946767Abstract: A hydrostatic bearing configured to slide along a sliding surface of a structural body in a non-contact manner, the hydrostatic bearing includes a jetting part having a jetting surface configured to jet air onto the sliding surface; and a suction part having a suction surface configured to suction the air jetted from the jetting surface onto the sliding surface. The suction surface is situated at one of an internal circumferential side and an external circumferential side of the jetting part and is positioned higher than a lower end of the jetting part.Type: GrantFiled: July 7, 2008Date of Patent: May 24, 2011Assignee: Sumitomo Heavy Industries, LtdInventors: Ryuta Nakajima, Tsuyoshi Nomoto, Takuya Hosobata
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Publication number: 20100250004Abstract: An XY stage device having an X-axis movable body which moves in the X-axis direction on a platen, and a Y-axis movable body which moves in the Y-axis direction on the platen and guides the movement of the X-axis movable body in the X-axis direction. The XY stage device includes a pair of actuators which can be provided so as to be separated from each other in the X-axis direction, and drives the Y-axis movable body in the Y-axis direction, a detector which detects the yawing angle that can be the angle of the Y-axis movable body in a rotational direction around the Z-axis, a controller which controls the driving of the pair of actuators on the basis of the yawing angle detected by the detector, and a pair of supporters which supports the Y-axis movable body on the platen.Type: ApplicationFiled: March 17, 2010Publication date: September 30, 2010Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Fuminori Makino, Yasushi Koyanagawa, Ryuta Nakajima
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Publication number: 20090245980Abstract: The vibrations of a second table supported on a first table that is movable in one horizontal direction can be controlled. A stage device includes an XY axis table movable in the X-direction, a Z-axis table supported by a support portion on the XY axis table, a pair of scales that are arranged apart from each other in the X-direction and detect the Z-direction velocity on the Z-axis table, a pair of motors that are arranged apart from each other in the X-direction and drive the Z-axis table in a vertical direction on the Z-axis-table, and a controller controls the drives of the motors based on the Z-direction velocity detected, in which the behavior of pitching vibrations in the Z-axis table is determined by detecting the Z-direction velocity with the scales, and the motors are driven and then the Z-axis table is rotated in a pitching direction so that the pitching vibrations are cancelled.Type: ApplicationFiled: September 12, 2008Publication date: October 1, 2009Inventors: Ryuta Nakajima, Hidehiko Mashimo
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Publication number: 20090016651Abstract: A hydrostatic bearing configured to slide along a sliding surface of a structural body in a non-contact manner, the hydrostatic bearing includes a jetting part having a jetting surface configured to jet air onto the sliding surface; and a suction part having a suction surface configured to suction the air jetted from the jetting surface onto the sliding surface. The suction surface is situated at one of an internal circumferential side and an external circumferential side of the jetting part and is positioned higher than a lower end of the jetting part.Type: ApplicationFiled: July 7, 2008Publication date: January 15, 2009Inventors: RYUTA NAKAJIMA, Tsuyoshi Nomoto, Takuya Hosobata
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Publication number: 20080087791Abstract: A stage apparatus, includes a holding member configured to hold a subject; an elevation supporting member configured to support the holding member so that the holding member can go up and down; a rotation supporting member configured to support the elevation supporting member so that the elevation supporting member can be rotated with respect to a Z axis; and a Z axis driving part configured to elevate the holding member in a Z axial direction; wherein the Z axis driving part is located on the rotation supporting member and makes the holding member go up and down relative to the rotation supporting member.Type: ApplicationFiled: November 14, 2007Publication date: April 17, 2008Inventor: Ryuta Nakajima