Patents by Inventor Kensaku Fujimoto

Kensaku Fujimoto 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: 20140380470
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Application
    Filed: July 28, 2014
    Publication date: December 25, 2014
    Applicants: TOSHIBA AMERICA RESEARCH, INC., ERICSSON INC.
    Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
  • Patent number: 8792454
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: July 29, 2014
    Assignees: Toshiba America Resesarch, Inc., Telcordia Inc.
    Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
  • Patent number: 8737812
    Abstract: According to one embodiment, a content playback apparatus includes a playback module, a decision module, and a management module. The playback module is configured to play back a content includes components selected from moving picture data, image data, sound data and text data, thereby to produce video data and audio data. The decision module is configured to determine, based on a state of the content playback apparatus, whether the components of the content can be viewed and listened to. The management module is configured to manage video-audio management data includes data items based on a decision result of the decision module, each data item representing whether a video or audio data item has been viewed or listened to.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: May 27, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Odaka, Satoshi Ozaki, Naoki Esaka, Shirou Wakayama, Kensaku Fujimoto, Yosuke Takahashi
  • Patent number: 8706780
    Abstract: A content item recommendation device includes; a storage which stores information of a plurality of content items describing identifiers and usage characteristics of the resources used in the content items; a first specifying unit which specifies first content items which use at least S number of resources in common with a specified content item; a second specifying unit which specifies second content items which use at least K number of resources in common with each of the first content items; a calculator which calculates relationship levels between the specified content item and each of the second content items; a selector which selects recommended content items from the second content items based on the relationship levels.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: April 22, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Eiji Tokita, Satoshi Ozaki, Kenji Odaka, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
  • Patent number: 8688834
    Abstract: According to some embodiments, systems and methods for binding dynamic host configuration and network access authentication are provided related to, inter alia, interactions between a PAA (PANA Authentication Agent) and a DHCP (Dynamic Host Configuration Protocol) server, such as, e.g., for synchronization between the PANA SA state and the DHCP SA state, such as, e.g., maintaining synchronization when a connection is lost. In some embodiments, systems and methods for binding network bridge and network access authentication are also provided related to, inter alia, interactions between a PAA and a layer-2 switch, such as, e.g., for avoiding service thefts and the like (such as, e.g., MAC address and/or IP address spoofing) in the context of, e.g., the above. In some other embodiments, systems and methods for bootstrapping multicast security from network access authentication protocol are also provided related to, inter alia, key management for protected IP multicast streams, such as, e.g.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: April 1, 2014
    Assignees: Toshiba America Research, Inc., Telcordia Technologies, Inc.
    Inventors: Kensaku Fujimoto, Yasuhiro Katsube, Yoshihiro Oba
  • Patent number: 8478943
    Abstract: A first acquisition unit acquires each of the resources defined by the scenario, from locations depending on identifiers of the resources. A judging unit judge, when a resource having same identifier and structure as the resource acquired is existent in the cache storage, erases the resource, the identifier thereof, and the receipt time information from the cache storage, and when not existent, stores the acquired resource in association with the identifier thereof and the receipt time information of the bookmark instruction, in the cache storage. A second acquisition, when the identifiers of the resources specified by a first scenario are existent in the cache storage, acquires the resources from the cache storage according to the receipt time information corresponding to the first scenario and identifiers of the resources, and when not existent, acquires the resources from a location depending on the identifiers.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 2, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shirou Wakayama, Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Kenji Odaka, Yosuke Takahashi
  • Patent number: 8341243
    Abstract: An apparatus includes unit storing scripts includes a tree structure, each of the scripts including at least one of a child-node script and content, unit selecting a parent-node script among the scripts, and acquiring to analyze a child-node script if the child-node script exists, unit acquiring content if content exists, unit retrieving substitute content if the acquisition of content ends in failure and if content indicates retrieving substitute content, unit retrieving the substitute-child-node script if the acquisition of the child-node script ends in failure and if the child-node script indicates retrieving the substitute-child-node script, and retrieving the substitute-parent-node script when content or the child-node script shows retrieving the substitute-parent-node script, unit acquiring substitute content when substitute content is found, unit acquiring the substitute-child-node script and the substitute-parent-node script when the substitute-child-node script and the substitute-parent-node script a
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: December 25, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Odaka, Satoshi Ozaki, Eiji Tokita, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
  • Publication number: 20120287904
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 15, 2012
    Applicants: TELCORDIA INC., TOSHIBA AMERICA RESEARCH, INC.
    Inventors: Kenichi TANIUCHI, Tao ZHANG, Prathima AGRAWAL, Ashutosh DUTTA, Sunil MADHANI, Shinichi BABA, Kensaku FUJIMOTO, Yasuhiro KATSUBE, Toshikazu KODAMA, Yoshihiro OHBA
  • Publication number: 20120219270
    Abstract: According to one embodiment, a content playback apparatus includes a playback module, a decision module, and a management module. The playback module is configured to play back a content includes components selected from moving picture data, image data, sound data and text data, thereby to produce video data and audio data. The decision module is configured to determine, based on a state of the content playback apparatus, whether the components of the content can be viewed and listened to. The management module is configured to manage video-audio management data includes data items based on a decision result of the decision module, each data item representing whether a video or audio data item has been viewed or listened to.
    Type: Application
    Filed: October 27, 2011
    Publication date: August 30, 2012
    Inventors: Kenji Odaka, Satoshi Ozaki, Naoki Esaka, Shirou Wakayama, Kensaku Fujimoto, Yosuke Takahashi
  • Patent number: 8243687
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: August 14, 2012
    Assignees: Toshiba America Research, Inc., Telcordia, Inc.
    Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
  • Publication number: 20120166732
    Abstract: A first acquisition unit acquires each of the resources defined by the scenario, from locations depending on identifiers of the resources. A judging unit judge, when a resource having same identifier and structure as the resource acquired is existent in the cache storage, erases the resource, the identifier thereof, and the receipt time information from the cache storage, and when not existent, stores the acquired resource in association with the identifier thereof and the receipt time information of the bookmark instruction, in the cache storage. A second acquisition, when the identifiers of the resources specified by a first scenario are existent in the cache storage, acquires the resources from the cache storage according to the receipt time information corresponding to the first scenario and identifiers of the resources, and when not existent, acquires the resources from a location depending on the identifiers.
    Type: Application
    Filed: August 10, 2011
    Publication date: June 28, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shirou WAKAYAMA, Satoshi OZAKI, Naoki ESAKA, Kensaku FUJIMOTO, Kenji ODAKA, Yosuke TAKAHASHI
  • Patent number: 8201091
    Abstract: The program synthesizing device according to the embodiment of the present invention includes: a coupling unit configured to couple an information acquiring plug-in module, an information processing plug-in module, and a presentation plug-in module through their input interfaces and output interfaces based on a mashup scenario; a plug-in module driving unit configured to sequentially drive the coupled plug-in modules; an information acquiring unit configured to acquire information when the information acquiring plug-in module is driven; an information processing unit configured to perform a predetermined process on the information when the information processing plug-in module is driven; an object resolving unit configured to determine a value of object presented by a specified presentation scenario when the presentation plug-in module is driven; and a program output unit configured to output a program being a presentation scenario in which the object value is resolved.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: June 12, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Shirou Wakayama, Kenji Odaka, Yosuke Takahashi
  • Publication number: 20120137222
    Abstract: The program synthesizing device according to the embodiment of the present invention includes: a coupling unit configured to couple an information acquiring plug-in module, an information processing plug-in module, and a presentation plug-in module through their input interfaces and output interfaces based on a mashup scenario; a plug-in module driving unit configured to sequentially drive the coupled plug-in modules; an information acquiring unit configured to acquire information when the information acquiring plug-in module is driven; an information processing unit configured to perform a predetermined process on the information when the information processing plug-in module is driven; an object resolving unit configured to determine a value of object presented by a specified presentation scenario when the presentation plug-in module is driven; and a program output unit configured to output a program being a presentation scenario in which the object value is resolved.
    Type: Application
    Filed: August 3, 2011
    Publication date: May 31, 2012
    Inventors: Satoshi Ozaki, Naoki Esaka, Kensaku Fujimoto, Shirou Wakayama, Kenji Odaka, Yosuke Takahashi
  • Publication number: 20110249653
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 13, 2011
    Applicants: TELCORDIA TECHNOLOGIES INC., TOSHIBA AMERICA RESEARCH INC. (TARI)
    Inventors: Kenichi TANIUCHI, Tao ZHANG, Prathima AGRAWAL, Ashutosh DUTTA, Sunil MADHANI, Shinichi BABA, Kensaku FUJIMOTO, Yasuhiro KATSUBE, Toshikazu KODAMA, Yoshihiro OHBA
  • Patent number: 7978655
    Abstract: Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: July 12, 2011
    Assignees: Toshiba America Research Inc., Telcordia Technologies, Inc.
    Inventors: Kenichi Taniuchi, Tao Zhang, Prathima Agrawal, Ashutosh Dutta, Sunil Madhani, Shinichi Baba, Kensaku Fujimoto, Yasuhiro Katsube, Toshikazu Kodama, Yoshihiro Ohba
  • Publication number: 20100241730
    Abstract: An information processing apparatus has an information acquiring unit which acquires a plurality of pieces of information over a network in accordance with an acquisition script included in a scenario, an information converting unit which extracts portions represented to a user from the respective pieces of acquired information in accordance with a conversion script included in the scenario, a movement adding unit which processes all or part of the presented portion so that display contents can be presented in such a form as to change and/or be accompanied with the sound output in accordance with a movement adding script included in the scenario, a statistics recording unit which records processing cost for each of the information acquiring unit, the information converting unit and the movement adding unit, an extraction unit which extracts dependency information showing a dependency relationship between the processes from the scenario, and a control unit which determines the priority of the processes to be c
    Type: Application
    Filed: September 17, 2009
    Publication date: September 23, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kensaku FUJIMOTO, Satoshi Ozaki, Yoshiki Terashima, Shirou Wakayama, Kenji Odaka, Eiji Tokita
  • Publication number: 20100198945
    Abstract: An apparatus includes unit storing scripts includes a tree structure, each of the scripts including at least one of a child-node script and content, unit selecting a parent-node script among the scripts, and acquiring to analyze a child-node script if the child-node script exists, unit acquiring content if content exists, unit retrieving substitute content if the acquisition of content ends in failure and if content indicates retrieving substitute content, unit retrieving the substitute-child-node script if the acquisition of the child-node script ends in failure and if the child-node script indicates retrieving the substitute-child-node script, and retrieving the substitute-parent-node script when content or the child-node script shows retrieving the substitute-parent-node script, unit acquiring substitute content when substitute content is found, unit acquiring the substitute-child-node script and the substitute-parent-node script when the substitute-child-node script and the substitute-parent-node script a
    Type: Application
    Filed: October 19, 2009
    Publication date: August 5, 2010
    Inventors: Kenji Odaka, Satoshi Ozaki, Eiji Tokita, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
  • Publication number: 20100180203
    Abstract: A content item recommendation device includes; a storage which stores information of a plurality of content items describing identifiers and usage characteristics of the resources used in the content items; a first specifying unit which specifies first content items which use at least S number of resources in common with a specified content item; a second specifying unit which specifies second content items which use at least K number of resources in common with each of the first content items; a calculator which calculates relationship levels between the specified content item and each of the second content items; a selector which selects recommended content items from the second content items based on the relationship levels.
    Type: Application
    Filed: September 16, 2009
    Publication date: July 15, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Eiji TOKITA, Satoshi Ozaki, Kenji Odaka, Shirou Wakayama, Yoshiki Terashima, Kensaku Fujimoto
  • Patent number: 7673152
    Abstract: In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: March 2, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenji Shirakawa, Mikio Hashimoto, Keiichi Teramoto, Satoshi Ozaki, Kensaku Fujimoto
  • Patent number: 7673155
    Abstract: A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a currently executed task; an interface for reading a program stored in a form encrypted by using a program key at an external memory, in units of cache lines, when a request for the task is made; an encryption processing unit for generating decryption keys that are different for different cache lines, according to the program key, and decrypt a content read by the interface; a cache memory formed by a plurality of cache lines each having a tag, for storing the task identifier corresponding to a decryption key used in decrypting each cache line in the tag of each cache line; and an access check unit for comparing the task identifier stored in the tag of each cache line with a value of the task register, and discarding a content of each cache line when t
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: March 2, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mikio Hashimoto, Kensaku Fujimoto, Kenji Shirakawa