Patents by Inventor Toshikazu Yasue
Toshikazu Yasue 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: 8594108Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: September 6, 2011Date of Patent: November 26, 2013Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Publication number: 20120005305Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: ApplicationFiled: September 6, 2011Publication date: January 5, 2012Applicant: HITACHI, LTD.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 8031716Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: April 21, 2010Date of Patent: October 4, 2011Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 7957405Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: GrantFiled: March 1, 2010Date of Patent: June 7, 2011Assignee: Hitachi, Ltd.Inventors: Hidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
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Publication number: 20100202459Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: ApplicationFiled: April 21, 2010Publication date: August 12, 2010Applicant: HITACHI, LTD.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 7746863Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: January 30, 2007Date of Patent: June 29, 2010Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Publication number: 20100158012Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: ApplicationFiled: March 1, 2010Publication date: June 24, 2010Applicant: HITACHI, LTD.Inventors: Hidemitsu HIGUCHI, Toshikazu YASUE, Ken WATANABE, Kazuaki TSUCHIYA
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Patent number: 7701952Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: GrantFiled: October 26, 2007Date of Patent: April 20, 2010Assignee: Hitachi, Ltd.Inventors: Hidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
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Patent number: 7385989Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network incorporates, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: GrantFiled: July 30, 2002Date of Patent: June 10, 2008Assignee: Hitachi, Ltd.Inventors: Hidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
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Publication number: 20080056301Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: ApplicationFiled: October 26, 2007Publication date: March 6, 2008Inventors: Hidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
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Publication number: 20070199065Abstract: An information processing system is provided, which allows an information processing device to use network devices across firewall devices without having the firewall devices configured for respective protocols which are to be used for communication with the network devices. By connecting a local machine and a remote machine with each other via a VPN and providing the remote machine with a VPN gateway function, the local machine is allowed to belong to a network on the remote machine side. As a result, in a case where the firewall devices exist between the local machine and the remote machine, merely by setting the firewall devices to connect the local machine and the remote machine with each other via the VPN, the local machine can communicate with the various network devices connected to the network on the remote machine side by means of various protocols.Type: ApplicationFiled: January 11, 2007Publication date: August 23, 2007Inventors: Yukio Ogawa, Tomohisa Kohiyama, Toshikazu Yasue
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Publication number: 20070165624Abstract: In a network system, which has a first computer belonging to a first network, a second computer belonging to a second network, and a first router and a second router belonging to a third network, wherein the first computer and the second computer are connected through a logical path built between the first router and the second router, wherein the first, second and third network are connected to one another, wherein the first and second network and the third network are independently operated; the first router stores as its first address an address used by the first network but not used by the first computer, or an address used by the second network but not used by the second computer and, based on the first address, sends a first packet and receives a second packet corresponding to the first packet.Type: ApplicationFiled: June 13, 2006Publication date: July 19, 2007Inventors: Hiroshi Saito, Yukio Ogawa, Yuji Kimura, Toshikazu Yasue, Satoshi Nakagawa
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Patent number: 7236487Abstract: A packet switch apparatus including a plurality of connecting points, each being coupled to one of a plurality of data processing units, and apparatus for receiving a first packet including identification information of a first data processing unit via a first connecting point. The invention further includes a storage for storing correspondence between the first data processing unit and the first connecting point based on the identification information. Apparatus, responsive to reception of a second packet from a second data processing unit to be transmitted to the first data processing unit, transmits the second packet to the first data processing unit via the first connecting point based on the correspondence stored in the storage.Type: GrantFiled: December 8, 2005Date of Patent: June 26, 2007Assignee: Hitachi, Ltd.Inventors: Katsumi Tadamura, Toshikazu Yasue, Seiji Kageyama, Tetsuo Oura
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Publication number: 20070133600Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: ApplicationFiled: January 30, 2007Publication date: June 14, 2007Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 7193998Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: July 13, 2005Date of Patent: March 20, 2007Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 7158526Abstract: A packet communication method and a packet communication system capable of making an IPv4-compatible application operating on an information processing apparatus communicate with another information processing apparatus connected to an IPv6 network without using an address translation router. In the information processing apparatus connected to the IPv6 network incorporates, an IPv4-to-IPv6 protocol conversion control function is incorporated in a LAN driver. A protocol conversion control module receives an IPv4 packet from a protocol control module. When a send destination IPv4 address contained in a header of the packet is registered in an address translation table incorporated in the protocol conversion control module, an IPv6 address is generated to be sent onto a LAN. Unless the send destination IPv4 address contained in the packet header is registered in the address translation table incorporated in the protocol conversion control module, the IPv4 packet as received is intactly sent onto the LAN.Type: GrantFiled: June 4, 2003Date of Patent: January 2, 2007Assignee: Hitachi, Ltd.Inventors: Hidemitsu Higuchi, Toshikazu Yasue, Ken Watanabe, Kazuaki Tsuchiya
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Patent number: 7072339Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: October 23, 2001Date of Patent: July 4, 2006Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Patent number: 7072338Abstract: In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.Type: GrantFiled: October 23, 2001Date of Patent: July 4, 2006Assignee: Hitachi, Ltd.Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
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Publication number: 20060117100Abstract: A communication system enables even an operator other than experts to correctly perform operations for a communication device such as an operation for modifying the configuration of the communication device without fail through simple operations without taking a long time for the operations, and permits the operator to keep track of the status of the operation in a remote management server. The communication device acquires an operational scenario from a management server, assigns the execution of the operational scenario to an operation input unit, and executes the operational scenario in response to an instruction which is issued from the operator by depressing an associated button on the input unit. The communication device displays the result of the execution on a display unit, and notifies the management server of the result.Type: ApplicationFiled: May 31, 2005Publication date: June 1, 2006Inventors: Yukio Ogawa, Yuji Kimura, Toshikazu Yasue
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Patent number: 7046624Abstract: A network apparatus according to the present invention is connected to a single server apparatus or a plurality of server apparatus via a link. The network administrator sets in advance the band volume to be used by a frame transmitted from each of the server apparatus within the range of the communication band volume possessed by the link. The network apparatus has a band controller that instructs each of the server apparatus to transmit a PAUSE frame. The network apparatus is also provided with a transmitter that transmits a PAUSE frame to each of the server apparatus via the link according to the instruction of the band controller. Each of the server apparatus receives the PAUSE frame transmitted from the network apparatus. Each of the server apparatus suspends frame transmission to the network apparatus for the suspension period set in the received PAUSE frame.Type: GrantFiled: September 12, 2000Date of Patent: May 16, 2006Assignee: Hitachi, Ltd.Inventors: Kazuko Iwatsuki, Tatsuya Watanuki, Takahisa Miyamoto, Toshikazu Yasue