Patents by Inventor Ryosuke Yabu
Ryosuke Yabu 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: 10990305Abstract: A storage apparatus includes: a plurality of controllers, each of which has a plurality of processors for processing requests; a storage device coupled to the controller; an integration unit that integrally controls the plurality of controllers; and a shared memory that can be accessed from each processor for the plurality of controllers and stores configuration information of the storage apparatus including load information of each processor. The integration unit: calculates estimated processing time of a configuration management request, which has been accepted from a management apparatus, from a request type and a target resource type of the configuration management request; and distributes the configuration management request to a plurality of distribution requests on the basis of the load information of each processor acquired from the shared memory and the estimated processing time, determines a distribution destination processor for processing each of the plurality of distribution requests.Type: GrantFiled: September 12, 2019Date of Patent: April 27, 2021Assignee: HITACHI, LTD.Inventors: Ryosuke Yabu, Shinichiro Kanno
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Publication number: 20200192586Abstract: A storage apparatus 10 includes: a plurality of controllers, each of which has a plurality of processors for processing requests; a storage device coupled to the controller: an integration unit that integrally controls the plurality of controllers; and a shared memory that can be accessed from each processor for the plurality of controllers and stores configuration information of the storage apparatus including load information of each processor. The integration unit: calculates estimated processing time of a configuration management request, which has been accepted from a management apparatus, from a request type and a target resource type of the configuration management request; and distributes the configuration management request to a plurality of distribution requests on the basis of the load information of each processor acquired from the shared memory and the estimated processing time, determines a distribution destination processor for processing each of the plurality of distribution requests.Type: ApplicationFiled: September 12, 2019Publication date: June 18, 2020Inventors: Ryosuke YABU, Shinichiro KANNO
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Patent number: 8537498Abstract: A cylindrical boss portion is press-formed on a baseplate of a disk drive suspension. The boss portion is penetrated by a ball insertion hole relative to the thickness of the baseplate. The baseplate is formed of stainless steel. A chemically-polished surface is formed on an inner circumferential wall of the ball insertion hole by chemically polishing the baseplate after heat-treating it. The boss portion is inserted into a mounting hole of an actuator arm. A ball having a diameter larger than the inside diameter of the ball insertion hole is passed through the ball insertion hole. As the diameter of the boss portion is enlarged by the ball, the boss portion is fixed to the actuator arm.Type: GrantFiled: December 6, 2012Date of Patent: September 17, 2013Assignees: NHK Spring Co., Ltd., Ogaki Seiko Co., Ltd.Inventors: Ryosuke Yabu, Masakazu Sugino
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Patent number: 8339745Abstract: A cylindrical boss portion is press-formed on a baseplate of a disk drive suspension. The boss portion is penetrated by a ball insertion hole relative to the thickness of the baseplate. The baseplate is formed of stainless steel. A chemically-polished surface is formed on an inner circumferential wall of the ball insertion hole by chemically polishing the baseplate after heat-treating it. The boss portion is inserted into a mounting hole of an actuator arm. A ball having a diameter larger than the inside diameter of the ball insertion hole is passed through the ball insertion hole. As the diameter of the boss portion is enlarged by the ball, the boss portion is fixed to the actuator arm.Type: GrantFiled: April 26, 2010Date of Patent: December 25, 2012Assignees: NHK Spring Co., Ltd., Ogaki Seiko Co., Ltd.Inventors: Ryosuke Yabu, Masakazu Sugino
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Patent number: 8339744Abstract: In a disk drive suspension including a baseplate and a load beam, a boss portion and protrusions are formed on the baseplate. The protrusions are formed in positions on a first surface of the baseplate off a reference mounting surface in contact with a suspension bearing surface of an actuator arm. Further, the protrusions are formed on a second surface located opposite from the first surface and project relative to the thickness of the baseplate. These protrusions serve to prevent a plurality of baseplates from closely contacting one another during their manufacture.Type: GrantFiled: June 28, 2012Date of Patent: December 25, 2012Assignees: NHK Spring Co., Ltd., Ogaki Seiko Co., Ltd.Inventors: Ryosuke Yabu, Masakazu Sugino
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Publication number: 20120275064Abstract: In a disk drive suspension including a baseplate and a load beam, a boss portion and protrusions are formed on the baseplate. The protrusions are formed in positions on a first surface of the baseplate off a reference mounting surface in contact with a suspension bearing surface of an actuator arm. Further, the protrusions are formed on a second surface located opposite from the first surface and project relative to the thickness of the baseplate. These protrusions serve to prevent a plurality of baseplates from closely contacting one another during their manufacture.Type: ApplicationFiled: June 28, 2012Publication date: November 1, 2012Applicants: OGAKI SEIKO CO. LTD., NHK SPRING CO., LTD.Inventors: Ryosuke Yabu, Masakazu Sugino
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Patent number: 8233238Abstract: In a disk drive suspension including a baseplate and a load beam, a boss portion and protrusions are formed on the baseplate. The protrusions are formed in positions on a first surface of the baseplate off a reference mounting surface in contact with a suspension bearing surface of an actuator arm. Further, the protrusions are formed on a second surface located opposite from the first surface and project relative to the thickness of the baseplate. These protrusions serve to prevent a plurality of baseplates from closely contacting one another during their manufacture.Type: GrantFiled: April 9, 2010Date of Patent: July 31, 2012Assignees: NHK Spring Co., Ltd., Ogaki Seiko Co., Ltd.Inventors: Ryosuke Yabu, Masakazu Sugino
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Publication number: 20100284111Abstract: A cylindrical boss portion is press-formed on a baseplate of a disk drive suspension. The boss portion is penetrated by a ball insertion hole relative to the thickness of the baseplate. The baseplate is formed of stainless steel. A chemically-polished surface is formed on an inner circumferential wall of the ball insertion hole by chemically polishing the baseplate after heat-treating it. The boss portion is inserted into a mounting hole of an actuator arm. A ball having a diameter larger than the inside diameter of the ball insertion hole is passed through the ball insertion hole. As the diameter of the boss portion is enlarged by the ball, the boss portion is fixed to the actuator arm.Type: ApplicationFiled: April 26, 2010Publication date: November 11, 2010Applicants: NHK Spring Co., Ltd., OGAKI SEIKO CO., LTD.Inventors: Ryosuke YABU, Masakazu Sugino
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Publication number: 20100265620Abstract: In a disk drive suspension including a baseplate and a load beam, a boss portion and protrusions are formed on the baseplate. The protrusions are formed in positions on a first surface of the baseplate off a reference mounting surface in contact with a suspension bearing surface of an actuator arm. Further, the protrusions are formed on a second surface located opposite from the first surface and project relative to the thickness of the baseplate. These protrusions serve to prevent a plurality of baseplates from closely contacting one another during their manufacture.Type: ApplicationFiled: April 9, 2010Publication date: October 21, 2010Applicants: NHK Spring Co., Ltd., OGAKI SEIKO CO., LTD.Inventors: Ryosuke YABU, Masakazu Sugino
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Patent number: 6223405Abstract: A method of manufacturing an ink jet head includes the following steps, wherein the ink jet head is provided with a plurality of pressure chambers arranged continuously, ink feed means for feeding ink into these pressure chambers, and ink ejecting means for ejecting ink from each pressure chamber via a nozzle, so as to feed and eject ink by a change in volume of each pressure chamber. First, a first metallic film is formed on both surfaces of at least one wall composing the pressure chamber perpendicular to an arranging direction of the plurality of pressure chambers, wherein the at least one wall is one wall of a piezoelectric element deformed when a voltage is impressed. Then, the first metallic film formed on one of the both surfaces of at lest one wall is removed to form an exposed surface of the wall of the piezoelectric element.Type: GrantFiled: September 9, 1997Date of Patent: May 1, 2001Assignee: Fujitsu LimitedInventors: Koichi Oikawa, Jun Kodama, Akira Iwaishi, Masayuki Kato, Tomohisa Shingai, Yuji Yoshida, Kazuki Ogawa, Ryosuke Yabu, Isao Mizobuchi, Masahiro Nagai