Patents by Inventor Junichi Higuchi
Junichi Higuchi 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: 20150254203Abstract: An information processing device includes a bridge unit that connects with one or a plurality of IO device groups via a network, a connection management unit that manages a connection of the bridge unit, an allocation priority instruction unit that stores an instruction or a fixed value that is a priority condition for allocating resources, a resource amount search unit that searches resources used by IO devices of an entire system that includes the IO devices, a remaining resource calculation unit that calculates a remaining resource amount, a reservation resource amount output unit that calculates and outputs a number of virtual PCI bridges and a reservation resource amount, and a virtual bridge resource setting unit that sets the bridge unit based on the number of virtual PCI bridges and the reservation resource amount.Type: ApplicationFiled: March 3, 2015Publication date: September 10, 2015Inventor: Junichi HIGUCHI
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Publication number: 20150120815Abstract: According to the present invention, a remote terminal (12) includes: an IO device (210) that is used as physical resources of a host computer (11); and an IO-side bridge (211) that performs processing of connecting with the host computer (11), and the host computer (11) includes: a CPU-side bridge (112) that performs processing of connecting with the remote terminal (21); an allocation setting unit (4311) that allocates the IO device (210) of the remote terminal (21) to an application running on the host computer (11); and a routing unit (4312) that performs processing of transferring information between the application to which the IO device (210) is allocated and the IO device (210), and prevents processing of transferring information between the application and the IO device (210) which is not allocated to the application.Type: ApplicationFiled: May 20, 2013Publication date: April 30, 2015Inventor: Junichi Higuchi
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Publication number: 20150095518Abstract: An I/O device sharing system characterized by comprising: an I/O device (50) shared by a plurality of hosts (20-1 to 20-N); a system manager (10) which sets the I/O device (50); a virtual bridge (40) which virtualizes the I/O device (50); and a network (3) which connects the I/O device (50), the system manager (10), the plurality of hosts (20-1 to 20-N) and the virtual bridge (40) to each other, wherein the virtual bridge (40) includes a connection virtualization unit (41) by which it is detected that an address setting of a plurality of virtual functions provided in the I/O device (50) that is set by the system manager (10) is performed, the virtual function is enabled, or both of them are performed and each host is permitted to access each virtual function.Type: ApplicationFiled: April 3, 2013Publication date: April 2, 2015Inventors: Jun Suzuki, Youichi Hidaka, Masato Yasuda, Takashi Yoshikawa, Junichi Higuchi
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Patent number: 8986470Abstract: A nickel material, which comprises by mass percent, C: 0.003 to 0.20% and one or more elements selected from Ti, Nb, V and Ta: a total content less than 1.0%, the contents of these elements satisfying the relationship specified by the formula of “(12/48) Ti+(12/93) Nb+(12/51) V+(12/181) Ta—C?0”, with the balance being Ni and impurities, does not deteriorate in the mechanical properties and corrosion resistance even when it is used at a high temperature for a long time and/or it is affected by the heat affect on the occasion of welding. Therefore, it can be suitably used as a member for use in various chemical plants including facilities for producing caustic soda, vinyl chloride and so on. Each element symbol in the above formula represents the content by mass percent of the element concerned.Type: GrantFiled: April 17, 2009Date of Patent: March 24, 2015Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Hiroyuki Anada, Junichi Higuchi, Kiyoko Takeda
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Publication number: 20150032749Abstract: A method includes: extracting a partial character string including a reserved word and a character string immediately previous or subsequent to the reserved word from each of a plurality of pieces of target data, the plurality of pieces of target data conforming to a first pattern character string including the reserved word defined by a protocol; detecting target data including the partial character string among the plurality of pieces of target data; specifying a first partial character string from the extracted partial character string based on the detected target data; and creating, by a processor, a second pattern character string for classifying the plurality of pieces of target data based on the first pattern character string and the first partial character string.Type: ApplicationFiled: July 15, 2014Publication date: January 29, 2015Inventors: Masazumi Matsubara, Yasuhiko Kanemasa, Hirokazu Iwakura, Atsushi Kubota, Junichi Higuchi
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Publication number: 20140379994Abstract: A local-memory side data transfer unit increments the number of addresses, reads out data from a local memory, and stores the data into a cache memory of a remote-memory side data transfer unit. For preventing data mismatching with the local memory from being stored into the cache memory, a cache clearing operation is executed in units of an elapse of a round trip time period for data transfer between the local memory and the remote memory. Alternatively, the cache clearing operation is executed upon receipt of a signal notifying data transfer of data stored at a specified address.Type: ApplicationFiled: September 5, 2014Publication date: December 25, 2014Applicant: NEC CORPORATIONInventors: Takashi YOSHIKAWA, Jun Suzuki, Youichi Hidaka, Junichi Higuchi, Atsushi Iwata
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Patent number: 8868814Abstract: Fault tolerance is improved, a functional limitation at the time of start-up of an I/O system is avoided, and a start-up time is shortened. A downstream PCI Express bridge sets a PCI Express device connected to the downstream PCI Express bridge itself, among a plurality of single root-compatible PCI Express devices shared by a plurality of root complexes connected to a plurality of upstream PCI Express bridges that exchange data with the downstream PC Express bridge itself through a network, controls and monitors a state of a physical link with the PCI Express device connected to the downstream PCI Express bridge itself, and performs monitoring and notification of an error of the PCI Express device connected to the downstream PCI Express bridge itself.Type: GrantFiled: June 11, 2010Date of Patent: October 21, 2014Assignee: NEC CorporationInventors: Junichi Higuchi, Youichi Hidaka, Jun Suzuki, Takashi Yoshikawa
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Publication number: 20140281053Abstract: A plurality of bridge units which connect a computer, a data movement source I/O device, and a data movement destination I/O device to a network, a memory unit which relays movement of data between the data movement source I/O device and the data movement destination I/O device outside the computer, and an I/O data movement control unit which causes the data movement source I/O device to write data to the memory unit and causes the data movement destination I/O device to read the data from the memory unit are included.Type: ApplicationFiled: October 26, 2012Publication date: September 18, 2014Inventors: Jun Suzuki, Youichi Hidaka, Junichi Higuchi, Takashi Yoshikawa, Teruyuki Baba, Yoshikazu Watanabe
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Publication number: 20140245053Abstract: A local computer (20) and a remote I/O device (30) are interconnected on a network (40) through an upstream side bridge (21) and a downstream side bridge (31). The upstream side bridge (21) and the downstream side bridge (31) each include a register (216, 316) for referring to or writing a signal aside from a primary data stream that runs through the network (40) from both sides, and a mechanism (217, 317) for transmitting and receiving the signal aside from the primary data stream inband when referring to or writing the signal in the register (216, 316).Type: ApplicationFiled: June 13, 2012Publication date: August 28, 2014Applicant: NEC CORPORATIONInventors: Takashi Yoshikawa, Youichi Hidaka, Jun Suzuki, Junichi Higuchi
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Publication number: 20140059250Abstract: A network system of the present invention includes a computer and a device connected via a network, and a system management device. The computer and the device include, respectively, bridges that encapsulate transmission/reception data transmitted and received to and from each other and transmit and receive the data to and from each other via the network. Each of the bridges includes a control data transmitting means for generating control data for controlling the state of the system based on control auxiliary data issued from the computer or the device and used for controlling the state of the system, and transmitting the control data to the system management device via the network. The system management device includes a system controlling means for controlling the state of the system in accordance with the control data received thereby.Type: ApplicationFiled: January 19, 2012Publication date: February 27, 2014Applicant: NEC CORPORATIONInventors: Jun Suzuki, Youichi Hidaka, Junichi Higuchi, Takashi Yoshikawa, Teruyuki Baba, Nobuharu Kami
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Patent number: 8635496Abstract: A trouble analysis apparatus is provided which includes: a system topology storing portion; an error detection information receiving portion which collects error detection information; and a trouble source determination portion which, based on both the error detection information collected by the error detection information receiving portion and system topology information stored in the system topology information storing portion, determines a trouble source functional element that is presumed as a functional element which is a source of a system trouble. Links included in the system topology information have information indicating spreading directions of error operations between the functional elements when trouble occurs. When the trouble source detection portion receives the error detection information with regard to multiple error functional elements, the trouble source determination portion sequentially selects one of the multiple error functional elements.Type: GrantFiled: August 4, 2009Date of Patent: January 21, 2014Assignee: NEC CorporationInventors: Youichi Hidaka, Takashi Yoshikawa, Junichi Higuchi
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Patent number: 8625615Abstract: Provided are a first PCI-PCI bridge that handles Multi Root to connect to a plurality of root complexes; a second PCI-PCI bridge that connects to an endpoint; a virtual PCI Express switch that performs a switching process between the first and second PCI-PCI bridges; and a network control device that transfers data that is to be processed in the virtual PCI Express switch to an external switch through a network without passing through a PCI-PCI bridge.Type: GrantFiled: May 18, 2009Date of Patent: January 7, 2014Assignee: NEC CorporationInventors: Youichi Hidaka, Takashi Yoshikawa, Junichi Higuchi, Jun Suzuki
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Patent number: 8615623Abstract: A switch (304) includes a plurality of bridges (3041, 3042, 3043, 3044, 3045) and a switch forwarding mechanism (20). Each of the bridges transmits and receives a TLP frame complying with PCI express to and from a device connected to each of the bridges. The switch forwarding mechanism includes a plurality of ports (1, 2, 3, 4, 5) to which the bridges are connected, respectively, selects an output port in dependence on a combination of destination information on the TLP frame input from one of the plurality of ports and the port which input the TLP frame, and outputs the TLP frame from the selected output port.Type: GrantFiled: August 8, 2007Date of Patent: December 24, 2013Assignee: NEC CorporationInventors: Youichi Hidaka, Jun Suzuki, Junichi Higuchi, Takashi Yoshikawa
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Patent number: 8603263Abstract: The present invention provides a duplex stainless steel having excellent resistance to alkalis and particularly corrosion resistance against high-temperature concentrated alkali solutions and excellent weldability. The duplex stainless steel has a chemical composition comprising, in mass %, C: at most 0.03%, Si: at most 0.5%, Mn: at most 2.0%, P: at most 0.04%, S: at most 0.003%, Cr: at least 25.0% to less than 28.0%, Ni: at least 6.0% to at most 10.0%, Mo: at least 0.2% to at most 3.5%, N: less than 0.5%, W: at most 3.0%, and a remainder of Fe and impurities.Type: GrantFiled: May 1, 2012Date of Patent: December 10, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Hideya Kaminaka, Junichi Higuchi, Yoshiaki Yamade, Shuuji Yoshida, Junko Imamura
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Patent number: 8417865Abstract: An I/O equipment sharing system includes CPUs, a plurality of route complexes coupled to the CPUs, upstream PCI Express-bridges coupled to the route complexes, downstream PCI Express-bridges coupled to the upstream PCI Express-bridges through a network, and I/O equipment coupled to the downstream PCI Express-bridges. In the above configuration, the I/O equipment are shared between the CPUs using the identifiers of the network (for example, Ethernet VLAN IDs), the identifiers are set so that they do not overlap between the respective CPUs and necessary I/O equipment is set to a set identifier. Further, an identifier is set to a plurality of the same I/O equipment required by the respective CPUs.Type: GrantFiled: May 11, 2012Date of Patent: April 9, 2013Assignee: NEC CorporationInventors: Junichi Higuchi, Youichi Hidaka, Jun Suzuki, Atsushi Iwata
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Patent number: 8412875Abstract: A network system that is part of a main system includes: a first PCI express-network bridge with a first control unit and a first PCI express adapter terminating a first PCI express bus; and a second PCI express-network bridge connected to the first PCI express-network bridge through a network. The second PCI express-network bridge includes a second control unit and a second PCI express adapter terminating a second PCI express bus, wherein the first control unit detects a destination of a packet sent from the first PCI express adapter, searches a physical address of the destination from a packet encapsulating table, and encapsulates the packet in a frame so that the frame includes the physical address, and wherein the second control unit removes the encapsulation tagged to the packet, and transfers the packet to the destination through the second PCI express bus by referring to a PCI express configuration register.Type: GrantFiled: March 1, 2011Date of Patent: April 2, 2013Assignee: NEC CorporationInventors: Jun Suzuki, Youichi Hidaka, Junichi Higuchi
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Patent number: 8352655Abstract: A packet communication device autonomously selects an appropriate operation mode according to a connection environment to an external device before a service of the device is started. When the device is connected to the external buses, connection interface units notify an external device discrimination unit of connection of the device. The external device discrimination unit issues a polling packet to the connected device, discriminates the connected external device on the basis of the response packet, and notifies an operation mode switching unit. The operation mode switching unit selects an operation mode conforming to a connection environment of the packet communication device to the external device and switches the operation mode of the device to the mode.Type: GrantFiled: January 14, 2008Date of Patent: January 8, 2013Assignee: NEC CorporationInventors: Jun Suzuki, Youichi Hidaka, Junichi Higuchi, Shigeyuki Yanagimachi, Takashi Yoshikawa
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Patent number: 8346996Abstract: An information processing system includes a plurality of processors for executing processing according to a predetermined processing request sent from a different device; a switching device for performing data transfer between the individual processors and the different device; and a storage device which is connected to the switching device and enables data transfer to and from the individual processors. At least one of the processors includes a processing request storing unit for storing processing request data sent from the different device to the processor, into the storage device by data transfer. At least another one of the processors includes a processing request reading unit for reading the processing request data stored in the storage device from the storage device by data transfer.Type: GrantFiled: July 14, 2009Date of Patent: January 1, 2013Assignee: NEC CorporationInventors: Youichi Hidaka, Junichi Higuchi, Takashi Yoshikawa
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Patent number: 8326977Abstract: A system analyzing apparatus obtains a message group including a message ID, a protocol, a type, and a transmission time of messages transmitted/received in a system where a hierarchical structure of protocols is defined. The apparatus detects pairs of a request message and a response message of the same message ID from the obtained message group. The apparatus identifies a request time and a response time of each of the detected pairs. The apparatus searches for a child-layer pair that has a request time and a response time between the request time and the response time of a parent-layer pair arbitrarily selected from among the pairs and that has a protocol in a layer lower than the protocol of the parent-layer pair on the basis of the identified result. The apparatus outputs the found child-layer pair as a candidate pair having a call relationship with the parent-layer pair.Type: GrantFiled: August 27, 2009Date of Patent: December 4, 2012Assignee: Fujitsu LimitedInventors: Junichi Higuchi, Ken Yokoyama
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Publication number: 20120290764Abstract: An I/O equipment sharing system includes CPUs, a plurality of route complexes coupled to the CPUs, upstream PCI Express-bridges coupled to the route complexes, downstream PCI Express-bridges coupled to the upstream PCI Express-bridges through a network, and I/O equipment coupled to the downstream PCI Express-bridges. In the above configuration, the I/O equipment are shared between the CPUs using the identifiers of the network (for example, Ethernet VLAN IDs), the identifiers are set so that they do not overlap between the respective CPUs and necessary I/O equipment is set to a set identifier. Further, an identifier is set to a plurality of the same I/O equipment required by the respective CPUs.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: NEC CORPORATIONInventors: Junichi HIGUCHI, Youichi HIDAKA, Jun SUZUKI, Atsushi IWATA