Patents by Inventor Daisuke Matsubara

Daisuke Matsubara 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: 7215640
    Abstract: For on-demand Quality of Service (QoS) transmission of packets, edge nodes update a TERMINAL-PORT TABLE as terminals log-on and then pass their node ID to each terminal that logged on. The nodes establish Quality of Service (QoS) assured pre-set paths through the WAN with conventional IP routing and accordingly update their NODE-PATH TABLE to provide links between the pre-set paths, network resources upon which the QoS of the paths depend and identification of a last-hop node, without the need for identification of each destination terminal of the paths. An application level connection between source and destination terminals, using conventional IP routing, provides the source terminal with identification of the last-hop node that is coupled to a destination terminal. The source terminal provides the first-hop node the last-hop node ID, the destination ID and flow information. The first-hop node creates its FLOW-PATH TABLE and transmits the information to the last-hop node, which creates its FLOW-PORT TABLE.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: May 8, 2007
    Assignee: Hitachi, Ltd.
    Inventor: Daisuke Matsubara
  • Publication number: 20060277296
    Abstract: A communication application control technology in which the location and status (context) of a user from a sensor net, and the communication application is controlled based on the context information. A sensor net server (or a presence server) manages the location and status of a user as well as group information detected by a sensor, and an application server obtains the user information included in the group from the sensor net server (or a presence server), and establishes a session with that user. This invention is applicable to various applications including the PTT (Push-to-Talk) and 3PCC.
    Type: Application
    Filed: December 27, 2005
    Publication date: December 7, 2006
    Inventors: Daisuke Matsubara, Hideya Yoshiuchi, Norihiko Moriwaki
  • Publication number: 20060189315
    Abstract: A scheme and a device for managing a user state and a plurality of terminal states on a presence server, and for automatically selecting an optimum terminal by using both the user state and the terminal states. Priority degrees which depend on the terminal states are set, then selecting a terminal whose priority degree is the highest of the plurality of terminals. In association therewith, a priority rank which is set depending on the user state is also taken into consideration, thereby selecting a final optimum terminal. The present scheme makes it possible to automatically perform a fine-grained selection of the optimum terminal in which both the terminal states and the user state are taken into consideration.
    Type: Application
    Filed: December 20, 2005
    Publication date: August 24, 2006
    Inventors: Daisuke Matsubara, Kazuho Miki
  • Publication number: 20050289237
    Abstract: A file sharing system for managing both P2P type and C/S type shard files, wherein a management server accepts from each client a file registration request and a file access request for not only a P2P type shared file, but also a C/S type shared file, and each client executes a subsequent procedure for storing or accessing a shared file according to an acknowledgement response from the management server.
    Type: Application
    Filed: February 22, 2005
    Publication date: December 29, 2005
    Inventors: Daisuke Matsubara, Hidenori Inouchi
  • Patent number: 6897509
    Abstract: The semiconductor device comprises a semiconductor substrate 10; a capacitor element 40 formed above the semiconductor substrate and including a lower electrode 34, a capacitor insulation film 36 formed on the lower electrode and an upper electrode 38 formed on the capacitor insulation film; a shield layer 14; 58 formed at least either of above and below the capacitor element; and a lead-out interconnection layer 22; 50 formed between the capacitor element and the shield layer and electrically connected to the lower electrode or the upper electrode, a plurality of holes 16, 60 being formed in each of the shield layer and the lead-out interconnection layer. The shield layers are formed above and below the MIM capacitor, whereby combination of noises with the MIM capacitor can be prevented.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: May 24, 2005
    Assignee: Fujitsu Limited
    Inventors: Hideaki Yamauchi, Daisuke Matsubara
  • Publication number: 20050076098
    Abstract: Disclosed embodiments of the present invention include a peer-to-peer network comprising management server and a notification server. Information of interest can be subscribed to by peer clients. The notification server can then notify subscribing peer clients of modified information. A pure peer-to-peer architecture is also disclosed.
    Type: Application
    Filed: October 6, 2003
    Publication date: April 7, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Kazuho Miki
  • Publication number: 20040202159
    Abstract: A core network that includes a number of relay nodes and edge nodes, intercoupled by network links, interconnects a plurality data transfer entities through gateway elements. Each gateway element is allocated a portion of the data communicating (QoS) resource of certain of the links, and maintains information of that allocation. When a gateway receives a request for a data transfer from a data transfer entity with a particular communicating resource requirement, it will check its associated information to determine of the allocated resource is sufficient. If not, the gateway may ask for a reconfiguration of resources that re-allocate communicating resource from one gateway element to the asking gateway element.
    Type: Application
    Filed: March 22, 2001
    Publication date: October 14, 2004
    Inventors: Daisuke Matsubara, Satoshi Yoshizawa, Kenichi Otsuki
  • Publication number: 20040201668
    Abstract: User presence information is incorporated with file displays to facilitate contacting users associated with the files. User groups are associated with information based on user presence information to further enhance a file display. The notion of presence is extended to files and file groups to still further enhance the file display.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Kazuho Miki
  • Publication number: 20040148434
    Abstract: In a specific embodiment of the invention, a peer-to-peer interfacing device is described. The particular embodiment of the invention facilitates access by a Web browser, allowing a Web user to benefit from the access capability of a peer-to-peer network, such as file sharing. The interfacing device can communicate using a standard protocol (e.g., HTML), thus allowing the Web user to access the peer-to-peer network with a conventional Web browser. The interfacing device can interact on the peer-to-peer network side, and thus appears to the peer-to-peer network as a peer machine.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Applicant: HITACHI, LTD.
    Inventors: Daisuke Matsubara, Kazuho Miki
  • Publication number: 20040008687
    Abstract: For on-demand Quality of Service (QoS) transmission of packets, edge nodes update a TERMINAL-PORT TABLE as terminals log-on and then pass their node ID to each terminal that logged on. The nodes establish Quality of Service (QoS) assured pre-set paths through the WAN with conventional IP routing and accordingly update their NODE-PATH TABLE to provide links between the pre-set paths, network resources upon which the QoS of the paths depend and identification of a last-hop node, without the need for identification of each destination terminal of the paths. An application level connection between source and destination terminals, using conventional IP routing, provides the source terminal with identification of the last-hop node that is coupled to a destination terminal. The source terminal provides the first-hop node the last-hop node ID, the destination ID and flow information. The first-hop node creates its FLOW-PATH TABLE and transmits the information to the last-hop node, which creates its FLOW-PORT TABLE.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Applicant: Hitachi Ltd.
    Inventor: Daisuke Matsubara
  • Publication number: 20040008688
    Abstract: For on-demand Quality of Service (QoS) transmission of packets, in a data transmission network between users, service providers and network providers, a database links service providers and different paths of different QoS levels through the network, for contents delivery based upon a fee schedule related to QoS path usage duration and QoS path usage levels. In response to a user request, a requested QoS path is set-up on demand for delivery of contents over the network from the service provider. When the set-up is successful, payment from the service provider to the network provider is based upon the fee schedule. In response to a delivery failure over the set-up path, responsibility for the failure is determined and payment responsibility is adjusted according to the determined responsibility. Compensation is to the service provider when the network provider is responsible for a failure of delivery event.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Satoshi Yoshizawa
  • Publication number: 20030225796
    Abstract: A peer-to-peer file sharing system includes software components for providing and maintaining a virtual directory in a server system component of the file sharing system. Client system components of the file sharing system cooperate with the server system to facilitate manipulations to the virtual directory.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Applicant: Hitachi, Ltd.
    Inventor: Daisuke Matsubara
  • Publication number: 20030205746
    Abstract: The semiconductor device comprises a semiconductor substrate 10; a capacitor element 40 formed above the semiconductor substrate and including a lower electrode 34, a capacitor insulation film 36 formed on the lower electrode and an upper electrode 38 formed on the capacitor insulation film; a shield layer 14; 58 formed at least either of above and below the capacitor element; and a lead-out interconnection layer 22; 50 formed between the capacitor element and the shield layer and electrically connected to the lower electrode or the upper electrode, a plurality of holes 16, 60 being formed in each of the shield layer and the lead-out interconnection layer. The shield layers are formed above and below the MIM capacitor, whereby combination of noises with the MIM capacitor can be prevented.
    Type: Application
    Filed: April 18, 2003
    Publication date: November 6, 2003
    Applicant: Fujitsu Limited
    Inventors: Hideaki Yamauchi, Daisuke Matsubara
  • Patent number: 6603165
    Abstract: The semiconductor device comprises a semiconductor substrate 10; a capacitor element 40 formed above the semiconductor substrate and including a lower electrode 34, a capacitor insulation film 36 formed on the lower electrode and an upper electrode 38 formed on the capacitor insulation film; a shield layer 14, 58 formed at least either of above and below the capacitor element; and a lead-out interconnection layer 22, 50 formed between the capacitor element and the shield layer and electrically connected to the lower electrode or the upper electrode, a plurality of holes 16, 60 being formed in each of the shield layer and the lead-out interconnection layer. The shield layers are formed above and below the MIM capacitor, whereby combination of noises with the MIM capacitor can be prevented.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: August 5, 2003
    Assignee: Fujitsu Limited
    Inventors: Hideaki Yamauchi, Daisuke Matsubara
  • Publication number: 20030089937
    Abstract: The semiconductor device comprises a semiconductor substrate 10; a capacitor element 40 formed above the semiconductor substrate and including a lower electrode 34, a capacitor insulation film 36 formed on the lower electrode and an upper electrode 38 formed on the capacitor insulation film; a shield layer 14; 58 formed at least either of above and below the capacitor element; and a lead-out interconnection layer 22; 50 formed between the capacitor element and the shield layer and electrically connected to the lower electrode or the upper electrode, a plurality of holes 16, 60 being formed in each of the shield layer and the lead-out interconnection layer. The shield layers are formed above and below the MIM capacitor, whereby combination of noises with the MIM capacitor can be prevented.
    Type: Application
    Filed: March 19, 2002
    Publication date: May 15, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Hideaki Yamauchi, Daisuke Matsubara
  • Publication number: 20030033467
    Abstract: A router system for dynamically allocating resources to enable provision of different levels of service in a network is described. The router includes a flow control table which stores entries that include source and destination addresses and priority information for each address. The priority information enables the provision of multiple different priorities to provide different qualities of service to different users of the network.
    Type: Application
    Filed: August 8, 2001
    Publication date: February 13, 2003
    Inventors: Satoshi Yoshizawa, Daisuke Matsubara, Kenichi Otsuki