Patents by Inventor Hidemitsu Higuchi

Hidemitsu 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).

  • Patent number: 10003968
    Abstract: A communication apparatus including: a plurality of physical ports to be coupled to different terminals via a network; a plurality of authentication processing units configured to execute an authentication process; and a controller configured to determine which one of the physical ports on which a packet was received from a terminal, to specify a preset authentication process corresponding to the determined physical port on which a packet was received, and to distribute the specified authentication process of the packet from the terminal to an authentication processing unit for executing.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 19, 2018
    Assignee: ALAXALA NETWORKS CORPORATION
    Inventors: Hidemitsu Higuchi, Motohide Nomi
  • Patent number: 9325685
    Abstract: An authentication switch monitors a failure of an external server, and redirect information to a Web server that holds authentication information registration screen data is provided to a terminal using a monitoring result. A life-and-death monitoring control unit for monitoring life and death of an external Web server is disposed within an authentication switch to monitor the life and death of the external Web server. An authentication processing unit within the authentication switch switches the redirect information on the basis of a life-and-death monitoring table of the external Web server provided in the life-and-death monitoring control unit in response to an authentication request from the terminal, and enables web authentication even when the external Web server is in failure.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: April 26, 2016
    Assignee: ALAXALA Networks Corporation
    Inventors: Yasunori Yamamoto, Hidemitsu Higuchi, Motohide Nomi
  • Patent number: 9258305
    Abstract: It is provided an authentication method for realizing a network authentication function for an authentication system, the authentication system including an authentication server for authenticating a terminal used by a user, and a switch for mediating an authentication sequence between the terminal and the authentication server. The authentication method includes steps of: providing, by the switch, identification information for identifying the switch to the authentication server in the authentication sequence; authenticating, by the authentication server, an authentication request transmitted from the terminal; transmitting, by the authentication server, an authentication result of the authentication to the switch based on the provided identification information on the switch; and authenticating, by the switch, access from the terminal based on the authentication result received from the authentication server.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: February 9, 2016
    Assignee: ALAXALA NETWORKS CORPORATION
    Inventors: Hidemitsu Higuchi, Hirotaka Sunami, Motohide Nomi
  • Patent number: 8995452
    Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: March 31, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Shigeki Yoshino, Hidemitsu Higuchi, Naoya Ikeda, Yoshitaka Sainomoto, Yukihide Inagaki
  • Publication number: 20140373112
    Abstract: A communication apparatus including: a plurality of physical ports to be coupled to different terminals via a network; a plurality of authentication processing units configured to execute an authentication process; and a controller configured to determine which one of the physical ports on which a packet was received from a terminal, to specify a preset authentication process corresponding to the determined physical port on which a packet was received, and to distribute the specified authentication process of the packet from the terminal to an authentication processing unit for executing.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Hidemitsu HIGUCHI, Motohide NOMI
  • Patent number: 8910248
    Abstract: A network relay device includes a communication unit, an authentication processing unit, a DHCP snooping processing unit, and a terminal search processing unit. The authentication processing unit creates first information specifying an authenticated terminal device according to web authentication, and manages whether relay of communication data between a terminal device and a node on the specified network is permissible based on the first information. The DHCP snooping processing unit executes snooping of DHCP communication data between a terminal device and a DHCP server, and creates second information specifying a layer 3 address allocated to each terminal device. The terminal search processing unit specifies an authenticated terminal device based on the first information, specifies a layer 3 address allocated to the specified authenticated terminal device based on the second information, and causes the communication unit to send, to the specified layer 3 address, confirmation communication data.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 9, 2014
    Assignee: Alaxala Networks Corporation
    Inventors: Hidemitsu Higuchi, Motohide Nomi
  • Publication number: 20140237544
    Abstract: It is provided an authentication method for realizing a network authentication function for an authentication system, the authentication system including an authentication server for authenticating a terminal used by a user, and a switch for mediating an authentication sequence between the terminal and the authentication server. The authentication method includes steps of: providing, by the switch, identification information for identifying the switch to the authentication server in the authentication sequence; authenticating, by the authentication server, an authentication request transmitted from the terminal; transmitting, by the authentication server, an authentication result of the authentication to the switch based on the provided identification information on the switch; and authenticating, by the switch, access from the terminal based on the authentication result received from the authentication server.
    Type: Application
    Filed: September 26, 2013
    Publication date: August 21, 2014
    Applicant: ALAXALA Networks Corporation
    Inventors: Hidemitsu HIGUCHI, Hirotaka SUNAMI, Motohide NOMI
  • Publication number: 20140223511
    Abstract: An authentication switch monitors a failure of an external server, and redirect information to a Web server that holds authentication information registration screen data is provided to a terminal using a monitoring result. A life-and-death monitoring control unit for monitoring life and death of an external Web server is disposed within an authentication switch to monitor the life and death of the external Web server. An authentication processing unit within the authentication switch switches the redirect information on the basis of a life-and-death monitoring table of the external Web server provided in the life-and-death monitoring control unit in response to an authentication request from the terminal, and enables web authentication even when the external Web server is in failure.
    Type: Application
    Filed: October 3, 2013
    Publication date: August 7, 2014
    Applicant: ALAXALA Networks Corporation
    Inventors: Yasunori YAMAMOTO, Hidemitsu HIGUCHI, Motohide NOMI
  • Publication number: 20140105217
    Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.
    Type: Application
    Filed: August 8, 2013
    Publication date: April 17, 2014
    Applicant: HITACHI, LTD.
    Inventors: Shigeki Yoshino, Hidemitsu Higuchi, Naoya Ikeda, Yoshitaka Sainomoto, Yukihide Inagaki
  • Patent number: 8681657
    Abstract: Provided is a network management system for managing a plurality of packet relay devices, the network management system comprising: the plurality of packet relay devices constituting networks; and a display device for displaying configurations of the networks, in a case where it is determined that a virtual packet relay device identifier of the virtual packet relay device that is assigned a second-network identifier associated with the extracted second-network identifier is registered in a first-network configuration table, a first-work identifying module is configured to associate a first-network identifier that is associated with the virtual packet relay device identifier with the obtained configuration information, and register the association between the first-network identifier and the obtained configuration information in the first-network configuration table.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: March 25, 2014
    Assignee: Alaxala Networks Corporation
    Inventors: Hidemitsu Higuchi, Tomoyuki Iijima, Makoto Kitani
  • Patent number: 8594108
    Abstract: 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: Grant
    Filed: September 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
  • Patent number: 8514869
    Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 20, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Shigeki Yoshino, Hidemitsu Higuchi, Naoya Ikeda, Yoshitaka Sainomoto, Yukihide Inagaki
  • Publication number: 20130073706
    Abstract: There are provided a virtual network management system and a network device that can identify the topology of a virtual network, estimate a virtual network to which various computing devices belong and the locations of the computing devices, and present the virtual network and the locations to a network administrator. In a network management device, the configurations of packet transmission devices and a MAC learning table are managed. A virtual network to which given virtual computing units are connected is identified from information about a virtual packet transmission device identifier, a VLAN identifier, a MAC address, and a packet transmission port number acquired from the MAC learning table. The locations of the virtual computing units in the virtual network are estimated, and the topology is drawn on the screen of a display.
    Type: Application
    Filed: August 13, 2012
    Publication date: March 21, 2013
    Inventors: Tomoyuki Iijima, Hidemitsu Higuchi
  • Patent number: 8358592
    Abstract: A network controller, capable of high-speed extraction of malicious traffic from networks and determining characteristics of such traffic, includes a unit for accumulating a number of packets for each arbitrary itemset included in the header portions of packets to be transferred, and a unit for determining whether the accumulated value obtained by the accumulating unit exceeds a predetermined threshold, and determines the types of packets to be transferred from accumulated values of the itemset and an itemset different from the itemset when the number of packets exceed a threshold.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 22, 2013
    Assignee: Alaxala Networks Corporation
    Inventors: Yoshinori Watanabe, Takashi Isobe, Hidemitsu Higuchi, Takeshi Aimoto
  • Publication number: 20130010640
    Abstract: Provided is a network management system for managing a plurality of packet relay devices, the network management system comprising: the plurality of packet relay devices constituting networks; and a display device for displaying configurations of the networks, in a case where it is determined that a virtual packet relay device identifier of the virtual packet relay device that is assigned a second-network identifier associated with the extracted second-network identifier is registered in a first-network configuration table, a first-work identifying module is configured to associate a first-network identifier that is associated with the virtual packet relay device identifier with the obtained configuration information, and register the association between the first-network identifier and the obtained configuration information in the first-network configuration table.
    Type: Application
    Filed: June 1, 2012
    Publication date: January 10, 2013
    Inventors: Hidemitsu HIGUCHI, Tomoyuki IIJIMA, Makoto KITANI
  • Publication number: 20120084840
    Abstract: A network relay device includes a communication unit, an authentication processing unit, a DHCP snooping processing unit, and a terminal search processing unit. The authentication processing unit creates first information specifying an authenticated terminal device according to web authentication, and manages whether relay of communication data between a terminal device and a node on the specified network is permissible based on the first information. The DHCP snooping processing unit executes snooping of DHCP communication data between a terminal device and a DHCP server, and creates second information specifying a layer 3 address allocated to each terminal device. The terminal search processing unit specifies an authenticated terminal device based on the first information, specifies a layer 3 address allocated to the specified authenticated terminal device based on the second information, and causes the communication unit to send, to the specified layer 3 address, confirmation communication data.
    Type: Application
    Filed: September 12, 2011
    Publication date: April 5, 2012
    Inventors: HIDEMITSU HIGUCHI, MOTOHIDE NOMI
  • Publication number: 20120005305
    Abstract: 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: Application
    Filed: September 6, 2011
    Publication date: January 5, 2012
    Applicant: HITACHI, LTD.
    Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
  • Patent number: 8031716
    Abstract: 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: Grant
    Filed: April 21, 2010
    Date of Patent: October 4, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kazuaki Tsuchiya, Naoya Ikeda, Shinichi Hamamoto, Ken Watanabe, Toshikazu Yasue, Yoshifumi Atarashi, Munechika Sumikawa, Takahisa Miyamoto, Hidemitsu Higuchi
  • Publication number: 20110194565
    Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.
    Type: Application
    Filed: April 15, 2011
    Publication date: August 11, 2011
    Inventors: Shigeki YOSHINO, Hidemitsu HIGUCHI, Naoya IKEDA, Yoshitaka SAINOMOTO, Yukihide INAGAKI
  • Patent number: 7983283
    Abstract: A packet routing apparatus has a plurality of routing units, connected by a first connecting mechanism. The plurality of routing units comprise a first routing unit, connected to at least one port, and a second routing unit, connected to an extended function processor. The first routing unit transmits a packet, received from the port, to another first routing unit and/or a second routing unit. The second routing unit transmits the packet, received from the first connecting mechanism, to the extended function processor.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: July 19, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Shigeki Yoshino, Hidemitsu Higuchi, Naoya Ikeda, Yoshitaka Sainomoto, Yukihide Inagaki