Patents by Inventor Emiko Kobayashi

Emiko Kobayashi 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).

  • Publication number: 20050249233
    Abstract: In a ring network, a sending host and a receiving node performing multi-cast communication share entry information indicating the node related to the he multi-cast communication. Moreover, the sending node and the receiving node broadcast the entry information on the ring network and share topology information related to a positional relationship on the ring network. Moreover, the sending node references the entry information and the topology information so as to determine the sending direction of the information to be multicast and transmits the information by multicast in the transmission direction. Furthermore, the aforementioned receiving node discards the information when no other receiving node receiving the information in present in the transmission direction.
    Type: Application
    Filed: February 7, 2005
    Publication date: November 10, 2005
    Applicant: Fujitsu Limited
    Inventors: Yuuichi Akaba, Emiko Kobayashi, Hiroyuki Murakami
  • Publication number: 20050240609
    Abstract: Storage groups are generated using group information previously set to a switch 3. In a group information acquisition step, group information, which is previously set to the switch 3 and relates to computers 4 and storage devices 5, is acquired from the switch 3, and the acquired group information is stored in a storing means 16. In a node information acquisition step, node information required for connecting to a network is acquired from each of the computers 4 and the storage devices 5, and acquired node information is stored in the storing means 16. In a group generation step, the storage groups are generated based on the group information stored in the storing means 16. And, in a registration step, the generated storage groups and the node information stored in the storing means 16 are registered at a storage name solving server 2.
    Type: Application
    Filed: July 16, 2004
    Publication date: October 27, 2005
    Inventors: Jun Mizuno, Takeshi Ishizaki, Kiminori Sugauchi, Atsushi Ueoka, Emiko Kobayashi, Toui Miyawaki
  • Publication number: 20050210291
    Abstract: In order to remove security vulnerability in an IP-SAN and eliminate unauthorized access by spoofing firewalls are installed in valid user servers and storage devices, and a distributed firewall manager for managing the firewalls integrally is provided in the IP-SAN. The distributed firewall manager obtains discovery domain information from an iSNS server, determines nodes registered in the iSNS server as the nodes of valid users, and autocreates a security policy according to sets consisting of an iSCSI name and portal information. This security policy is distributed to all of the firewalls as a common policy, whereupon access control is executed to deny TCP connection requests from unauthorized access sources.
    Type: Application
    Filed: May 25, 2004
    Publication date: September 22, 2005
    Inventors: Toui Miyawaki, Takeshi Ishizaki, Emiko Kobayashi
  • Publication number: 20050204049
    Abstract: The present invention decreases the burden of operation required for specifying the continuity status and the cause of failure of a network storage device. A host computer accepts the specification of the device identifier, that is an identifier of the network storage device in the host protocol which positions in a higher hierarchy than the network communication protocol, and a volume identifier, that is an identifier of the volume. Then based on the specified device identifier, the host computer specifies the network identifier, that is an identifier of the network storage device in the network communication protocol. And continuity is confirmed in the network communication protocol in which the specified network identifier is the destination. Also continuity is confirmed in the host protocol in which the device identifier is the destination. And the volume specified by the volume identifier is accessed.
    Type: Application
    Filed: June 10, 2004
    Publication date: September 15, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Atsushi Ueoka, Takashi Ishizaki, Kiminori Sugauchi, Emiko Kobayashi, Jun Mizuno, Toui Miyawaki
  • Publication number: 20050198224
    Abstract: A control condition is automatically generated by using a discovery domain managed by an iSNS server as a network communication quality control unit and set in a network device. Thus, it is possible to realize communication whose quality is effectively controlled in storage data transmission. A network configuration server automatically acquires discovery domain information which groups a host and a storage apparatus managed by a name management server. The network configuration server sets a flow identification condition so as to identify the flow per discovery domain according to the information acquired, assigns a service class performing a control of quality of communication service to the flow, and sets transmission rule for the service class to routers.
    Type: Application
    Filed: June 24, 2004
    Publication date: September 8, 2005
    Inventors: Emiko Kobayashi, Takeshi Ishizaki, Kiminori Sugauchi, Atsushi Ueoka, Toui Miyawaki, Jun Mizuno
  • Publication number: 20050111474
    Abstract: An IP multicast communication system includes a layer-2 switch for accommodating a plurality of recipients dynamically joining or not joining a multicast group, a layer-3 switch adapted to a subnet for receiving IP multicast data sent from a sender via an IP network and distributing the received IP multicast data to authorized recipients joining the multicast group via the layer-2 switch under control, and a controller for collectively managing recipient management information for authentication of the recipients obtained according to an Internet Group Management Protocol IGMP. The layer-3 switch authenticates the recipients according to the recipient management information adapted to its subnetwork among the recipient management information collectively managed by the controller. The layer-2 switch stops transmission of the IP multicast data or thins the IP multicast data sent to recipients that are determined to have made unauthorized accesses by the layer-3 switch.
    Type: Application
    Filed: December 30, 2004
    Publication date: May 26, 2005
    Applicant: FUJITSU LIMITED
    Inventor: Emiko Kobayashi
  • Publication number: 20050044213
    Abstract: A measurement system is provided. In that measurement system, an active measurement device and passive measurement devices can cooperate to perform flexible measurement. The measurement system comprises passive measurement devices, each of which receives packets flowing through a network and performs measurement according to a measurement rule; an active measurement device that sends a request for a measurement to a content providing server according to a measurement rule, and acquires information relating to contents as measurement objects based on a response to said request for a measurement; and an analysis device that derives characteristics relating to provision of the contents, by performing calculation according to an analysis rule, with said calculation using measurement results corresponding to the information acquired by said active measurement device among measurement results of said passive measurement devices.
    Type: Application
    Filed: May 26, 2004
    Publication date: February 24, 2005
    Inventors: Emiko Kobayashi, Kiminori Sugauchi, Minoru Koizumi, Georg Carle, Tanja Zseby, Sebastian Zander, Carsten Schmoll, Lutz Mark, Guido Pohl, Jens Tiemann
  • Publication number: 20050005004
    Abstract: An object of the present invention is to provide a network measurement configuration apparatus which selects an IP meter for measurement traffic of a network, and sets a measurement rule in the IP meter. In order to achieve the above object, there is provided a network measurement configuration apparatus connected to a network having a plurality of measurement devices arranged therein, which measures traffic data of the network based on a measurement rule, comprising, a receiving means which receives a user request including path information and a measurement type, a measurement device selecting means which selects a measurement device responsible for a measurement based on the user request, and a measurement rule setting means which sets a measurement rule in the measurement device thus selected.
    Type: Application
    Filed: October 3, 2003
    Publication date: January 6, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Kiminori Sugauchi, Hiroshi Saito, Emiko Kobayashi, Minoru Koizumi, Georg Carle, Tanja Zseby, Sebastian Zander, Carsten Schmoll, Lutz Mark, Jens Tiemann
  • Publication number: 20020193109
    Abstract: A sender of a message can transmit a message to an unspecified user merely by specifying a condition of space without specifying a recipient of the message, using an information processing terminal transmitting a message not with a user address to specify a user but with an area address (a condition of space) to specify an area within an electric wave reachable range of a radio base station; and a server converting the area address to a user address which specifies a PHS terminal currently located in the area represented by said area address and transmitting the message with a converted address to a switching equipment.
    Type: Application
    Filed: August 5, 2002
    Publication date: December 19, 2002
    Inventors: Emiko Kobayashi, Tomoichi Ebata, Minoru Koizumi, Katsumi Hanashima