Patents by Inventor Kouji Sonoda
Kouji Sonoda 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: 7447933Abstract: A storage system 1 including multiple slots for loading a block I/O interface controller, a file I/O interface controller, and any other kinds of interface controllers that are combined freely. The storage system 1 includes a management table that manages fail-over-enabled devices by grouping those devices in accordance with the interface type and the domain to which each device belongs; an information table that directs a fail-over procedure; and fail-over controlling means that takes over the processing of a failed interface controller belonging to a fail-over-enabled group. The fail-over system offers several modalities for monitoring failures, selecting takeover controllers and restoring functionality. Storage system 1 solves conventional problems by providing a system that can mount a plurality of file systems, and that resists multiple failures detected in a fail-over server.Type: GrantFiled: December 21, 2005Date of Patent: November 4, 2008Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Kouji Sonoda, Manabu Kitamura, Takashi Oeda, Yutaka Takata
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Patent number: 7441560Abstract: A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an orifice for restricting the flow rate of hydrogen supplied to first and second communication chambers is mounted in a first port that is disposed upstream of the filter. The restriction and the filter are disposed coaxially in line with each other.Type: GrantFiled: March 7, 2006Date of Patent: October 28, 2008Assignee: Keihin CorporationInventors: Kouji Sonoda, Masakazu Murai, Kouetsu Hikichi, Hideki Sasaki, Yoshio Saito, Koji Katano, Kazunori Fukuma, Hiroyasu Ozaki, Kouji Miyano, Katsumi Sahoda
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Publication number: 20060151734Abstract: A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an orifice for restricting the flow rate of hydrogen supplied to first and second communication chambers is mounted in a first port that is disposed upstream of the filter. The restriction and the filter are disposed coaxially in line with each other.Type: ApplicationFiled: March 7, 2006Publication date: July 13, 2006Applicant: Keihin CorporationInventors: Kouji Sonoda, Masakazu Murai, Kouetsu Hikichi, Hideki Sasaki, Yoshio Saito, Koji Katano, Kazunori Fukuma, Hiroyasu Ozaki, Kouji Miyano, Katsumi Sahoda
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Publication number: 20060117211Abstract: A storage system 1 including multiple slots for loading a block I/O interface controller, a file I/O interface controller, and any other kinds of interface controllers that are combined freely. The storage system 1 includes a management table that manages fail-over-enabled devices by grouping those devices in accordance with the interface type and the domain to which each device belongs; an information table that directs a fail-over procedure; and fail-over controlling means that takes over the processing of a failed interface controller belonging to a fail-over-enabled group. The fail-over system offers several modalities for monitoring failures, selecting takeover controllers and restoring functionality. Storage system 1 solves conventional problems by providing a system that can mount a plurality of file systems, and that resists multiple failures detected in a fail-over server.Type: ApplicationFiled: December 21, 2005Publication date: June 1, 2006Applicant: Hitachi, Ltd.Inventors: Naoto Matsunami, Kouji Sonoda, Manabu Kitamura, Takashi Oeda, Yutaka Takata
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Patent number: 7040596Abstract: A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an orifice for restricting the flow rate of hydrogen supplied to first and second communication chambers is mounted in a first port that is disposed upstream of the filter. The restriction and the filter are disposed coaxially in line with each other.Type: GrantFiled: December 1, 2003Date of Patent: May 9, 2006Assignee: Keihin CorporationInventors: Kouji Sonoda, Masakazu Murai, Kouetsu Hikichi, Hideki Sasaki, Yoshio Saito, Koji Katano, Kazunori Fukuma, Hiroyasu Ozaki, Kouji Miyano, Katsumi Sahoda
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Patent number: 7003687Abstract: A storage system 1 including multiple slots for loading a block I/O interface controller, a file I/O interface controller, and any other kinds of interface controllers that are combined freely. The storage system 1 includes a management table that manages fail-over-enabled devices by grouping those devices in accordance with the interface type and the domain to which each device belongs; an information table that directs a fail-over procedure; and fail-over controlling means that takes over the processing of a failed interface controller belonging to a fail-over-enabled group. The fail-over system offers several modalities for monitoring failures, selecting takeover controllers and restoring functionality. Storage system 1 solves conventional problems by providing a system that can mount a plurality of file systems, and that resists multiple failures detected in a fail-over server.Type: GrantFiled: May 15, 2002Date of Patent: February 21, 2006Assignee: Hitachi, Ltd.Inventors: Naoto Matsunami, Kouji Sonoda, Manabu Kitamura, Takashi Oeda, Yutaka Takata
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Publication number: 20040232373Abstract: A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an orifice for restricting the flow rate of hydrogen supplied to first and second communication chambers is mounted in a first port that is disposed upstream of the filter. The restriction and the filter are disposed coaxially in line with each other.Type: ApplicationFiled: December 1, 2003Publication date: November 25, 2004Applicant: Keihin CorporationInventors: Kouji Sonoda, Masakazu Murai, Kouetsu Hikichi, Hideki Sasaki, Yoshio Saito, Koji Katano, Kazunori Fukuma, Hiroyasu Ozaki, Kouji Miyano, Katsumi Sahoda
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Patent number: 6773784Abstract: The object of this invention is to provide a magnetic disk which has an excellent durability even with a protective film having a small film thickness of 4 nm or less. The magnetic disk of this invention is a magnetic disk comprising a non-magnetic substrate and, provided thereon, a magnetic metal film, carbon protective film and fluorine-containing lubricant film, wherein the carbon protective film is a DLC film having a film thickness of 4 nm or less and the ratio of infrared absorption intensity resulting from the C—H bond near 2,920 cm−1 determined by FT-IR using ATR to infrared absorption intensity resulting from the C—F bond of the lubricant film is 0.035-0.060.Type: GrantFiled: February 12, 2003Date of Patent: August 10, 2004Assignee: Hitachi, Ltd.Inventors: Kouji Sonoda, Hiroshi Tani, Hiroyuki Matsumoto, Mitsuhiro Shoda, Toshinori Ono
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Patent number: 6687764Abstract: In collective I/O processing in which a plurality of processes access the same file in a shared manner, when each user process issues an I/O request, the user process notifies the system of information on a file region accessed by all the processes; information for specifying whether or not a prefetch is performed, and information for specifying whether or not a disk preallocate is performed, together with the I/O requests issued by all associated processes, as hint information. The system provides a buffer for storing data in a file region accessed by all the processes based on the hint information, such that the I/O processing for all the processes is performed using this buffer.Type: GrantFiled: December 21, 2001Date of Patent: February 3, 2004Assignee: Hitachi, Ltd.Inventors: Kouji Sonoda, Naoki Utsunomiya, Hiroyuki Kumazaki, Toshiya Kurakake
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Publication number: 20030224212Abstract: The object of this invention is to provide a magnetic disk which has an excellent durability even with a protective film having a small film thickness of 4 nm or less. The magnetic disk of this invention is a magnetic disk comprising a non-magnetic substrate and, provided thereon, a magnetic metal film, carbon protective film and fluorine-containing lubricant film, wherein the carbon protective film is a DLC film having a film thickness of 4 nm or less and the ratio of infrared absorption intensity resulting from the C—H bond near 2,920 cm−1 determined by FT-IR using ATR to infrared absorption intensity resulting from the C—F bond of the lubricant film is 0.035-0.060.Type: ApplicationFiled: February 12, 2003Publication date: December 4, 2003Inventors: Kouji Sonoda, Hiroshi Tani, Hiroyuki Matsumoto, Mitsuhiro Shoda, Toshinori Ono
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Publication number: 20030135782Abstract: A storage system 1 including multiple slots for loading a block I/O interface controller, a file I/O interface controller, and any other kinds of interface controllers that are combined freely. The storage system 1 includes a management table that manages fail-over-enabled devices by grouping those devices in accordance with the interface type and the domain to which each device belongs; an information table that directs a fail-over procedure; and fail-over controlling means that takes over the processing of a failed interface controller belonging to a fail-over-enabled group. The fail-over system offers several modalities for monitoring failures, selecting takeover controllers and restoring functionality. Storage system 1 solves conventional problems by providing a system that can mount a plurality of file systems, and that resists multiple failures detected in a fail-over server.Type: ApplicationFiled: May 15, 2002Publication date: July 17, 2003Applicant: Hitachi, Ltd.Inventors: Naoto Matsunami, Kouji Sonoda, Manabu Kitamura, Takashi Oeda, Yutaka Takata
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Publication number: 20020091751Abstract: In collective I/O processing in which a plurality of processes access the same file in a shared manner, when each user process issues an I/O request, the user process notifies the system of information on a file region accessed by all the processes; information for specifying whether or not a prefetch is performed, and information for specifying whether or not a disk preallocate is performed, together with the I/O requests issued by all associated processes, as hint information. The system provides a buffer for storing data in a file region accessed by all the processes based on the hint information, such that the I/O processing for all the processes is performed using this buffer.Type: ApplicationFiled: December 21, 2001Publication date: July 11, 2002Inventors: Kouji Sonoda, Naoki Utsunomiya, Hiroyuki Kumazaki, Toshiya Kurakake
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Patent number: 5911823Abstract: A method for pulling a <110> single-crystal silicon aims at preventing the crystal from being cut in diameter-reducing and suppress the increase in cost due to the cut prevention to the minimum. In the step for forming a diameter-reduced portion performed prior to the step for growing a <110> single-crystal silicon by the Czochralski method, a magnetic field having a strength of 500 gauss or more is applied and while suppressing a melt surface vibration and temperature variation, the crystal diameter is reduced to 2.00 mm or smaller.Type: GrantFiled: December 10, 1996Date of Patent: June 15, 1999Assignee: Komatsu Electronics Metals Co., Ltd.Inventors: Kouji Sonoda, Toshio Mimura
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Patent number: 5867656Abstract: In a computer system in which nodes are connected to each other via a network, transmission and reception buffers of sender and receiver processes are prepared as resident areas in a main storage. A node of a receiver side notifies, prior to initiation of a communication, a physical address of a data reception area of the node to a node on a sender side. In the node on the sender side, the reported physical address is added to transmission data to transfer a resultant item. On the receiver side, reception data is written in a location of the main storage at the physical address. In the receiver node, the double buffering is employed to prevent an overwriting operation of another node onto the data reception area. The respective nodes achieve partial synchronization with adjacent nodes in chain, thereby automatically establishing synchronization between all nodes.Type: GrantFiled: December 3, 1996Date of Patent: February 2, 1999Assignee: Hitachi, Ltd.Inventors: Masaaki Iwasaki, Hiroyuki Chiba, Naoki Utsunomiya, Kouji Sonoda, Satoshi Yoshizawa, Masahiko Yamauchi
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Patent number: 5659777Abstract: In a computer system in which nodes are connected to each other via a network, transmission and reception buffers of sender and receiver processes are prepared as resident areas in a main storage. A node of a receiver side notifies, prior to initiation of a communication, a physical address of a data reception area of the node to a node on a sender side. In the node on the sender side, the reported physical address is added to transmission data to transfer a resultant item. On the receiver side, reception data is written in a location of the main storage at the physical address. In the receiver node, the double buffering is employed to prevent an overwriting operation of another node onto the data reception area. The respective nodes achieve partial synchronization with adjacent nodes in chain, thereby automatically establishing synchronization between all nodes.Type: GrantFiled: September 23, 1993Date of Patent: August 19, 1997Assignee: Hitachi, Ltd.Inventors: Masaaki Iwasaki, Hiroyuki Chiba, Naoki Utsunomiya, Kouji Sonoda, Satoshi Yoshizawa, Masahiko Yamauchi