Patents by Inventor Hiroshi Ishizaki
Hiroshi Ishizaki 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: 9521091Abstract: When a fabric switch detects a fault in its own link, the fabric switch transmits a first fault notification frame containing a fault link identifier representing the detected fault to a plurality of port switches. When the fabric switch receives a second fault notification frame from a plurality of port switches, it floods the second fault notification frame. When a port switch detects a fault in its own link, it transmits a second fault notification frame containing a fault link identifier to the plurality of fabric switches. Also, when the port switch receives the fault notification frame at all of its own links, it sets the LAG based on the fault link identifier.Type: GrantFiled: November 3, 2014Date of Patent: December 13, 2016Assignee: Hitachi Metals, Ltd.Inventors: Tomoyoshi Tatsumi, Hiroshi Ishizaki
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Patent number: 9306845Abstract: An address table can be easily shared (synchronized) between two switching devices for which multi-chassis link aggregation is set. When a destination port of a frame received at a port P2 is a port P1, one of the two switching devices for which the multi-chassis link aggregation is set creates a bridging frame containing a transmission source address contained in the flame and an identifier of the port which has received, and transfers the bridging frame from a bridging port. When the other of the two switching devices receives the bridging frame, the other of the two switching devices detects the identifier of the port which has received and the transmission source address from the frame, and updates an address table of its own based on the identifier, the transmission source address, and a link table of its own.Type: GrantFiled: November 13, 2013Date of Patent: April 5, 2016Assignee: Hitachi Metals, Ltd.Inventors: Wataru Kumagai, Hiroshi Ishizaki
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Publication number: 20150207670Abstract: When a fabric switch detects a fault in its own link, the fabric switch transmits a first fault notification frame containing a fault link identifier representing the detected fault to a plurality of port switches. When the fabric switch receives a second fault notification frame from a plurality of port switches, it floods the second fault notification frame. When a port switch detects a fault in its own link, it transmits a second fault notification frame containing a fault link identifier to the plurality of fabric switches. Also, when the port switch receives the fault notification frame at all of its own links, it sets the LAG based on the fault link identifier.Type: ApplicationFiled: November 3, 2014Publication date: July 23, 2015Inventors: Tomoyoshi TATSUMI, Hiroshi ISHIZAKI
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Patent number: 9033207Abstract: An electronic component unit manufacturing method includes: preparing a circuit board including a heat generating element mounted thereon and a bonding metal foil layer formed thereon, a heat transfer board including an insulative layer formed on one face thereof and a heat transfer metal foil layer formed on the insulative layer, and a heat sink; applying a cream solder to form a solder layer on the board bonding metal foil layer or the heat transfer metal foil layer; superimposing the bonding metal foil layer and the heat transfer metal foil layer with each other via the solder layer; re-melting the solder layer to solder the bonding metal foil layer and the heat transfer metal foil layer; and superimposing the other face of the heat transfer board with the heat sink to thereby assemble the circuit board with the heat sink via the heat transfer board.Type: GrantFiled: April 24, 2014Date of Patent: May 19, 2015Assignee: HONDA ELESYS CO., LTD.Inventors: Seiji Yamashita, Tamotsu Teshima, Amane Murao, Hiroshi Ishizaki, Takashi Honda, Hitoshi Kuroyanagi, Tomoyuki Masubuchi
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Patent number: 8995091Abstract: A slider for magnetic data recording in a thermally assisted recording system. The slider has a slider body and a magnetic recording head formed on a trailing edge of the slider body. A first terminal is formed on a trailing edge surface of the recording head, and a second terminal is formed on a backside surface both the magnetic recording head and the slider body so as to extend across both the magnetic recording head and the slider body. An electrically conductive lead formed within the magnetic recording head connects the first lead with the second lead.Type: GrantFiled: December 21, 2012Date of Patent: March 31, 2015Assignee: HGST Netherlands B.V.Inventors: Tomomitsu Inoue, Hideo Yamakura, Hidetoshi Anan, Hiroshi Ishizaki
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Publication number: 20140231491Abstract: An electronic component unit manufacturing method includes: preparing a circuit board including a heat generating element mounted thereon and a bonding metal foil layer formed thereon, a heat transfer board including an insulative layer formed on one face thereof and a heat transfer metal foil layer formed on the insulative layer, and a heat sink; applying a cream solder to form a solder layer on the board bonding metal foil layer or the heat transfer metal foil layer; superimposing the bonding metal foil layer and the heat transfer metal foil layer with each other via the solder layer; re-melting the solder layer to solder the bonding metal foil layer and the heat transfer metal foil layer; and superimposing the other face of the heat transfer board with the heat sink to thereby assemble the circuit board with the heat sink via the heat transfer board.Type: ApplicationFiled: April 24, 2014Publication date: August 21, 2014Inventors: Seiji YAMASHITA, Tamotsu TESHIMA, Amane MURAO, Hiroshi ISHIZAKI, Takashi HONDA, Hitoshi KUROYANAGI, Tomoyuki MASUBUCHI
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Publication number: 20140177406Abstract: A slider for magnetic data recording in a thermally assisted recording system. The slider has a slider body and a magnetic recording head formed on a trailing edge of the slider body. A first terminal is formed on a trailing edge surface of the recording head, and a second terminal is formed on a backside surface both the magnetic recording head and the slider body so as to extend across both the magnetic recording head and the slider body. An electrically conductive lead formed within the magnetic recording head connects the first lead with the second lead.Type: ApplicationFiled: December 21, 2012Publication date: June 26, 2014Applicant: HGST NETHERLANDS B.V.Inventors: Tomomitsu Inoue, Hideo Yamakura, Hidetoshi Anan, Hiroshi Ishizaki
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Patent number: 8737075Abstract: According to embodiments, there is provided an electronic component unit, including: a circuit board including: a heat generating element that generates a heat; and a bonding metal foil layer formed on a face thereof; a heat transfer board including: a board body having a thermal conductivity higher than that of the circuit board; an insulative layer formed on a first face of the board body; and a heat transfer metal foil layer formed to cover the insulative layer; and a heat sink, wherein the circuit board is assembled with the heat sink via the heat transfer board such that (1) the heat transfer metal foil layer is soldered to the bonding metal foil layer and (2) the second face of the board body is superimposed on the heat sink.Type: GrantFiled: February 9, 2011Date of Patent: May 27, 2014Assignee: Honda Elesys Co., Ltd.Inventors: Seiji Yamashita, Tamotsu Teshima, Amane Murao, Hiroshi Ishizaki, Takashi Honda, Hitoshi Kuroyanagi, Tomoyuki Masubuchi
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Publication number: 20140140346Abstract: An address table can be easily shared (synchronized) between two switching devices for which multi-chassis link aggregation is set. When a destination port of a frame received at a port P2 is a port P1, one of the two switching devices for which the multi-chassis link aggregation is set creates a bridging frame containing a transmission source address contained in the flame and an identifier of the port which has received, and transfers the bridging frame from a bridging port. When the other of the two switching devices receives the bridging frame, the other of the two switching devices detects the identifier of the port which has received and the transmission source address from the frame, and updates an address table of its own based on the identifier, the transmission source address, and a link table of its own.Type: ApplicationFiled: November 13, 2013Publication date: May 22, 2014Applicant: Hitachi Metals, Ltd.Inventors: Wataru KUMAGAI, Hiroshi ISHIZAKI
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Patent number: 8472134Abstract: In one embodiment, a magnetic head includes at least one magnetic head element for reading from and/or writing to a magnetic medium, the element having an air bearing surface (ABS) facing toward a magnetic medium, an adhesive film including silicon nitride above the ABS having a characteristic of being formed under a water vapor partial pressure, and a protective film above the adhesive film, the protective film including carbon. Also, in another embodiment, a method includes forming an ABS of a magnetic head, the ABS being a surface of the magnetic head which is closest to a magnetic medium when in use, forming an adhesive film above the ABS of the magnetic head, the adhesive film being formed under a water vapor partial pressure, and forming a protective film above the adhesive film, the protective film including carbon.Type: GrantFiled: August 2, 2011Date of Patent: June 25, 2013Assignee: HGST Netherlands B.V.Inventors: Mineaki Kodama, Hiroshi Ishizaki, Atsuko Okawa, Hiroshi Inaba
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Publication number: 20130070366Abstract: According to one embodiment, a method for manufacturing a magnetic device includes forming a protective film above a structure, wherein at least one of hydrogen and water vapor are introduced into a formation chamber during formation of the protective film. In-another embodiment, a magnetic head includes at least one of: a read element, a write element, a heater element, and a resistance detector element above a substrate, conductive terminals for each of the at least one of: the read element, the write element, and the heater element, and a protective film above the at least one of: the read element, the write element, and the heater element, wherein the protective film comprises at least one of hydrogen and water vapor.Type: ApplicationFiled: September 21, 2011Publication date: March 21, 2013Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mineaki Kodama, Kazuhito Miyata, Hiroshi Ishizaki, Atsuko Okawa
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Publication number: 20130033779Abstract: In one embodiment, a magnetic head includes at least one magnetic head element for reading from and/or writing to a magnetic medium, the element having an air bearing surface (ABS) facing toward a magnetic medium, an adhesive film including silicon nitride above the ABS having a characteristic of being formed under a water vapor partial pressure, and a protective film above the adhesive film, the protective film including carbon. Also, in another embodiment, a method includes forming an ABS of a magnetic head, the ABS being a surface of the magnetic head which is closest to a magnetic medium when in use, forming an adhesive film above the ABS of the magnetic head, the adhesive film being formed under a water vapor partial pressure, and forming a protective film above the adhesive film, the protective film including carbon.Type: ApplicationFiled: August 2, 2011Publication date: February 7, 2013Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Mineaki Kodama, Hiroshi Ishizaki, Atsuko Okawa, Hiroshi Inaba
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Publication number: 20110194255Abstract: According to embodiments, there is provided an electronic component unit, including: a circuit board including: a heat generating element that generates a heat; and a bonding metal foil layer formed on a face thereof; a heat transfer board including: a board body having a thermal conductivity higher than that of the circuit board; an insulative layer formed on a first face of the board body; and a heat transfer metal foil layer formed to cover the insulative layer; and a heat sink, wherein the circuit board is assembled with the heat sink via the heat transfer board such that (1) the heat transfer metal foil layer is soldered to the bonding metal foil layer and (2) the second face of the board body is superimposed on the heat sink.Type: ApplicationFiled: February 9, 2011Publication date: August 11, 2011Applicant: Honda Elesys Co., Ltd.Inventors: Seiji Yamashita, Tamotsu Teshima, Amane Murao, Hiroshi Ishizaki, Takashi Honda, Hitoshi Kuroyanagi, Tomoyuki Masubushi
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Patent number: 7551398Abstract: To promote reduction in thickness of an air bearing surface protective film of a magnetic head, a magnetic head having an air bearing surface protective film consisting only of a thin carbon film while excluding formation of a dead layer by ion incidence as less as possible to the read/write device, and a manufacturing method therefore, are provided. In an embodiment, an air bearing surface protective film of a magnetic head comprises a thin carbon film, in which the mass density a lowermost layer of the air bearing surface protective film on the side of a magnetic device is made lower compared with a thin carbon film constituting other adjacent layers. Further, the manufacturing method comprises deposition under the control of time for the incident angle of ion flow to a substrate to be processed and deposition under the control of time for the ion flow energy to a substrate to be processed.Type: GrantFiled: October 5, 2005Date of Patent: June 23, 2009Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Shigehiko Fujimaki, Hiroshi Inaba, Hiroshi Ishizaki
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Patent number: 7286326Abstract: Embodiments of the invention provide an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in the state of an extremely thin film. In one embodiment, an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in a state of an extremely thin film is obtained by disposing a thin silicon nitride film having high density, high electric resistance, chemical stability and high adhesion with a substrate as a lowermost air bearing surface protection film and disposing a film comprising tetrahedral amorphous carbon and nitrogen as an uppermost air bearing surface protection film.Type: GrantFiled: May 27, 2005Date of Patent: October 23, 2007Assignee: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Nobuto Yasui, Hiroshi Inaba, Shinji Sasaki, Hiroshi Ishizaki
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Patent number: 7281019Abstract: A case management method that reduces the number of manual operations, prevents manual errors, guarantees updated data, and enables knowledge of the present location of a storage file. In the case management method, case information involving a processing deadline is input to the management computer. At least one event, which is a task including a single operation and involving the processing deadline or a task including a series of operations and involving the processing deadline, is generated. Workflows, which are series of operations performed in a section that is determined beforehand in accordance with the type of generated event, are stored in a database. A predetermined workflow is selected from the stored workflow. An event pool storing the generated event in association with the selected predetermined workflow is generated in the database.Type: GrantFiled: September 26, 2002Date of Patent: October 9, 2007Assignees: Kabushiki Kaisha Onda Techno, Daiko Co., Ltd.Inventors: Masakatsu Taketa, Kaori Arihiro, Hiroshi Ishizaki, Hisashi Kunieda, Tsutomu Munemoto, Masayuki Kamiya, Yoshiki Hayashi
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Publication number: 20060072246Abstract: To promote reduction in thickness of an air bearing surface protective film of a magnetic head, a magnetic head having an air bearing surface protective film consisting only of a thin carbon film while excluding formation of a dead layer by ion incidence as less as possible to the read/write device, and a manufacturing method therefore, are provided. In an embodiment, an air bearing surface protective film of a magnetic head comprises a thin carbon film, in which the mass density a lowermost layer of the air bearing surface protective film on the side of a magnetic device is made lower compared with a thin carbon film constituting other adjacent layers.Type: ApplicationFiled: October 5, 2005Publication date: April 6, 2006Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Shigehiko Fujimaki, Hiroshi Inaba, Hiroshi Ishizaki
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Publication number: 20050264938Abstract: Embodiments of the invention provide an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in the state of an extremely thin film. In one embodiment, an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in a state of an extremely thin film is obtained by disposing a thin silicon nitride film having high density, high electric resistance, chemical stability and high adhesion with a substrate as a lowermost air bearing surface protection film and disposing a film comprising tetrahedral amorphous carbon and nitrogen as an uppermost air bearing surface protection film.Type: ApplicationFiled: May 27, 2005Publication date: December 1, 2005Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Nobuto Yasui, Hiroshi Inaba, Shinji Sasaki, Hiroshi Ishizaki
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Patent number: 6892356Abstract: A simple and easy-to-memorize operation method for a scheduling management system is provided to perform main tasks such as referring to schedules of a selected member or a selected date. A software component indicating a schedule, a member, or a date is moved to any one of components constituting a GUI screen, and when the software component is superposed upon another component, the motion destination component constituting the GUI screen judges the type of the superposed software component to select a process to be performed. Main tasks can be performed by a simple operation method through superposition of software components.Type: GrantFiled: August 14, 2001Date of Patent: May 10, 2005Assignee: Hitachi, Ltd.Inventors: Hiroshi Ishizaki, Norihito Suganuma
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Publication number: 20030105738Abstract: A case management method that reduces the number of manual operations, prevents manual errors, guarantees updated data, and enables knowledge of the present location of a storage file. In the case management method, case information involving a processing deadline is input to the management computer. At least one event, which is a task including a single operation and involving the processing deadline or a task including a series of operations and involving the processing deadline, is generated. Workflows, which are series of operations performed in a section that is determined beforehand in accordance with the type of generated event, are stored in a database. A predetermined workflow is selected from the stored workflow. An event pool storing the generated event in association with the selected predetermined workflow is generated in the database.Type: ApplicationFiled: September 26, 2002Publication date: June 5, 2003Applicant: KABUSHIKI KAISHA ONDA TECHNOInventors: Masakatsu Taketa, Kaori Arihiro, Hiroshi Ishizaki, Hisashi Kunieda, Tsutomu Munemoto, Masayuki Kamiya, Yoshiki Hayashi