Patents by Inventor Kouichi Yasaki
Kouichi Yasaki 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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Publication number: 20120254637Abstract: An information terminal includes: a storage unit to store information; a data encryption unit to encrypt the information and decrypt the encrypted information using an encryption key; a pre-deletion unit to delete the encryption key; a signal detection unit to detect an interruption signal; a pre-deletion setting unit to instruct the pre-deletion unit to delete the encryption key in response to the detection of the interruption signal; and a deletion stop unit to stop deletion of the encryption key by the pre-deletion unit.Type: ApplicationFiled: February 29, 2012Publication date: October 4, 2012Applicant: FUJITSU LIMITEDInventors: Kouichi YASAKI, Hidenobu Ito, Yousuke Nakamura, Kazuaki Nimura, Zhaogong Guo
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Publication number: 20120254411Abstract: An application providing system has a communication terminal, a Web server that manages resources of Web applications, and a push server that manages storage location addresses of resources. The push server has an address managing unit that manages a terminal ID, a storage location address, and providing timing in a manner associated with one another. The push server further has a timing monitoring unit that monitors the providing timing. The push server further has a push transmitting unit that transmits a storage location address of a resource of a Web application associated with providing timing to a communication terminal associated with the providing timing upon detection of the providing timing to cache the resource of the Web application corresponding to the providing timing in the communication terminal.Type: ApplicationFiled: February 22, 2012Publication date: October 4, 2012Applicant: FUJITSU LIMITEDInventors: Hidenobu ITO, Kazuaki NIMURA, Yousuke NAKAMURA, Kouichi YASAKI, Zhaogong GUO
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Publication number: 20120254352Abstract: A communication terminal and a web server that provides a resource of a web application to the communication terminal are provided. The web server includes a storing control unit that stores, when a content edited by a web application that is executed by the communication terminal is detected, the edited content in the resource of the web application. Furthermore, the web server includes an application providing unit that provides, when an application request for the web application is detected from the communication terminal, the resource of the web application to the communication terminal that executes the application request.Type: ApplicationFiled: January 20, 2012Publication date: October 4, 2012Applicant: FUJITSU LIMITEDInventors: Hidenobu ITO, Kazuaki Nimura, Yousuke Nakamura, Kouichi Yasaki, Zhaogong Guo
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Patent number: 8245006Abstract: A data storage device for storing and managing data includes a data memory, an input unit, a data writer, and a data deleter. The data memory stores data. The data memory includes a preferential deletion area for storing data which needs to be preferentially deleted. The input unit accepts input data. The data writer stores the input data in the data memory. The data deleter deletes data stored in the data memory. The data deleter starts to delete data stored in the preferential deletion area before starting to delete data stored in the data memory other than the preferential deletion area when a predefined condition is satisfied.Type: GrantFiled: December 17, 2009Date of Patent: August 14, 2012Assignee: Fujitsu LimitedInventors: Kouichi Yasaki, Isamu Yamada
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Publication number: 20110320801Abstract: An information processing apparatus includes, a processer, a non-volatile memory to store a plurality of programs, a volatile memory to store at least one program executed by the processor and data accessed by the program, an acceptance unit to accept context information when power supplied to the processor is resumed from a state in which power supplied to the processor is interrupted while a power supplied to the volatile memory is maintained, a selection unit to select one program from the plurality of programs stored in the non-volatile memory based on context information accepted by the acceptance unit, and a program determination unit to determine whether the one program selected by the selection unit is stored in the volatile memory. When the processor determines the one program selected by the program determination unit is stored in the volatile memory, the processor starts the one program stored in the volatile memory.Type: ApplicationFiled: June 22, 2011Publication date: December 29, 2011Applicant: FUJITSU LIMITEDInventors: Kazuaki NIMURA, Zhaogong Guo, Kouichi Yasaki, Yousuke Nakamura
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Patent number: 8035488Abstract: An information access system comprises a reader/writer for continually transmitting an ID request signal at a first frequency and being continuously ready to receive an RF signal at a second frequency, and an active contactless information storage device having a receiver for sensing a carrier of an RF signal at the first frequency, and a transmitter for transmitting a response signal at the second frequency when the ID request signal is received. When the receiver senses a carrier of an RF signal at the first frequency in a particular predetermined period, the receiver receives further the ID request signal, and, in response to the ID request signal, the transmitter transmits a response signal at the second frequency carrying an ID of the storage device stored. In the carrier sensing, the controller causes the receiver to be in an active state and the transmitter to be in an inactive state in the predetermined periods.Type: GrantFiled: October 12, 2005Date of Patent: October 11, 2011Assignee: Fujitsu LimitedInventors: Shinichi Shiotsu, Isamu Yamada, Satoshi Inano, Kouichi Yasaki, Akira Itasaki, Atsushi Sakai, Masahiko Takenaka, Takanao Ochiai
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Publication number: 20110246738Abstract: A storage device includes a switching unit which switches an access destination in a storage area between a first storage area and a second storage area in response to an access request from a host device; and a nonvolatile storage medium which stores a first host device information used to identify the host device in the second storage area, and a software module executed by a CPU provided in the host device, the software module comprising causing the an authority grant unit which transmits a control signal for switching the access destination to the first storage area to the switching unit of the storage device, when the acquired first and second host device information are compared to find that the first and second host device information match with each other.Type: ApplicationFiled: February 25, 2011Publication date: October 6, 2011Applicant: Fujitsu LimitedInventors: Yousuke NAKAMURA, Kazuaki Nimura, Kouichi Yasaki, Zhaogong Guo
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Publication number: 20110231672Abstract: A portable storage medium adapter, which is connected to a computer to store data received from the computer in a portable storage medium, includes a holding part that detachably holds the portable storage medium, a detecting part that detects an unloading operation of the portable storage medium by a user, and a disablement executing part that executes a disabling process to disable external access to the data stored in the portable storage medium at a time when the unloading operation is detected in the detecting part.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Applicant: Fujitsu LimitedInventors: Shigehiro IDANI, Toshihiro Sonoda, Kouichi Yasaki
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Publication number: 20110213899Abstract: An information processing apparatus that executes security processing for a storage device connected thereto, the apparatus includes a processing command storage unit that stores a plurality of processing commands related to security processing according to a type of the storage device, a determining unit that determines the type of the storage device connected thereto, an obtaining unit that obtains a processing command corresponding to the type determined by the determining unit from the processing command storage unit, and an executing unit that executes the security processing corresponding to the storage device based on the obtained processing command.Type: ApplicationFiled: February 22, 2011Publication date: September 1, 2011Applicant: FUJITSU LIMITEDInventors: Zhaogong GUO, Kazuaki NIMURA, Kouichi YASAKI, Yousuke NAKAMURA, Isamu YAMADA, Koichi HIRAMOTO
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Publication number: 20110088084Abstract: A storage apparatus includes: an access acceptance unit to receive an access request associated with an access from a host apparatus; an authentication processing unit to judge whether the access is authenticated or unauthenticated; a storage unit including a first area that stores first data and a second area that stores second data serving as a substitute for the first data; a data switching unit to allow, when the access acceptance unit judges the access as authenticated, the access to the first area and switches the access to the second area in a case where the authentication processing unit judges the access as unauthenticated, the access to the second data in the second area being provided to disguise that the access was unauthenticated.Type: ApplicationFiled: October 13, 2010Publication date: April 14, 2011Applicant: FUJITSU LIMITEDInventors: Kouichi YASAKI, Kazuaki Nimura, Yousuke Nakamura, Isamu Yamada, Zhaogong Guo
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Publication number: 20110087748Abstract: A non-transitory computer-readable medium for recording a program allowing a computer to execute: determining whether first identification information of the computer matches with second identification information stored in the computer-readable medium connected to the computer; executing a process stored in the computer-readable medium upon the determining that the first identification information and the second identification information do not match; selecting a communication unit from one or a plurality of communication units included in the computer; and transmitting third information regarding the execution of the process using the selected communication unit.Type: ApplicationFiled: October 12, 2010Publication date: April 14, 2011Applicant: FUJITSU LIMITEDInventors: Kazuaki NIMURA, Kouichi Yasaki, Yousuke Nakamura, Zhaogong Guo, Isamu Yamada
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Patent number: 7925879Abstract: An information processing unit is an unit which has an information division recording function in which a file is divided and stored. The information processing unit includes a first storage section for storing a first partial file of a file divided, a second storage section for storing a second partial file, a state detection section for checking an operating state of the information processing unit and detecting that the operating state has changed in a specific manner, and a control section for performing a lock processing in accordance with the state detected to the second partial file stored on the second storage section when the state detected by the state detection section is determined as a risky state in which unauthorized access can be performed.Type: GrantFiled: October 2, 2006Date of Patent: April 12, 2011Assignee: Fujitsu LimitedInventors: Kouichi Yasaki, Naoki Nishiguchi, Isamu Yamada
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Patent number: 7882541Abstract: A mobile information processing device (200) obtains specific information of a user in response to an operation by the user, authenticates the user based on the specific information, establishes the first wireless communication mode, and then transmits authentication information to an information processing terminal. The information processing terminal (100) receives the authentication information from the mobile information processing device in the first wireless communication mode (A), verifies the received authentication information, generates an identification based on the resultant verification, transmits, in the first wireless communication mode, the identification to the mobile information processing device, then changes from the first wireless communication mode into the second wireless communication mode (B), and iteratively performs polling of the mobile information processing device.Type: GrantFiled: June 26, 2007Date of Patent: February 1, 2011Assignee: Fujitsu LimitedInventors: Kouichi Yasaki, Isamu Yamada, Shinichi Shiotsu, Seiki Shibata
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Patent number: 7873990Abstract: An information processing apparatus is connectable to a user device over a network. The apparatus includes a processor. The processor transmits, in response to reception of a request for a particular item of content, an identification of a security scheme which is applicable to transmission of the particular item of content in accordance with a license policy. When the item of content can be received by the user device in the security scheme, the processor transmits the item of content in the security scheme.Type: GrantFiled: July 19, 2007Date of Patent: January 18, 2011Assignee: Fujitsu LimitedInventors: Toshihiro Sonoda, Eiji Hasegawa, Kouichi Yasaki
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Publication number: 20110004738Abstract: A data storage device for storing and managing data includes a data memory, an input unit, a data writer, and a data deleter. The data memory stores data. The data memory includes a preferential deletion area for storing data which needs to be preferentially deleted. The input unit accepts input data. The data writer stores the input data in the data memory. The data deleter deletes data stored in the data memory. The data deleter starts to delete data stored in the preferential deletion area before starting to delete data stored in the data memory other than the preferential deletion area when a predefined condition is satisfied.Type: ApplicationFiled: December 17, 2009Publication date: January 6, 2011Applicant: FUJITSU LIMITEDInventors: Kouichi YASAKI, Isamu YAMADA
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Patent number: 7818579Abstract: An information processor has an information dispersing function, a dividing unit for dividing a first data (DT0) into n pieces of disperse information, and executing secret sharing scheme capable of restoring the first data (DT0) by using arbitrary k pieces (1<k<n) of disperse information out of the n pieces of disperse information, a first storage control unit for storing the arbitrary k pieces of disperse information generated by the dividing unit into plurality of portable recording devices, an editing unit for reconstructing the first data (DT0) by using the k pieces of disperse information stored in the plurality of recording devices and editing the restored first data (DT0), a difference generating unit, after the dividing unit divides a second data which is post-data (DT1) originated in the restored first data into n pieces of post-edit disperse information, for calculating the difference between post-edit disperse information corresponding to the recording device and pre-edit disperse informatioType: GrantFiled: May 7, 2007Date of Patent: October 19, 2010Assignee: Fujitsu LimitedInventors: Naoki Nishiguchi, Kouichi Yasaki
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Patent number: 7802112Abstract: An information processing apparatus includes a TPM, a key management module for managing a key database, a memory, and a file processing module for encrypting and decrypting a file. The TPM stores a first TPM key therein and encrypts a third TPM key. The key management module stores and manages the third TPM key in the database. When the information processing apparatus starts communicating with the tamper-proof device, the key management module receives, from the TPM, a parameter for generating a second TPM key, provides the received parameter to the tamper-proof device, receives from the tamper-proof device the second TPM key which has been encrypted using the first TPM key, and provides the TPM with the second TPM key and with the third TPM key which has been encrypted using the second TPM key.Type: GrantFiled: December 28, 2004Date of Patent: September 21, 2010Assignee: Fujitsu LimitedInventors: Kouichi Yasaki, Seiki Shibata, Isamu Yamada
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Publication number: 20100235575Abstract: A storage device that stores data accessed by a host device via an interface includes a deactivation executing part performing a plurality of deactivating processes deactivating access to the data at different levels via the interface; a setting information storing part storing setting information which includes deactivation identifying information identifying the deactivating process and a condition under which the deactivating process is performed; a judging part referring to the setting information stored on the setting information storing part, comparing the condition represented by the setting information with an operation state of the storage device, and judging whether the condition represented by the setting information is satisfied or not; and a deactivation control part ordering the deactivation executing part to execute one of the plurality of deactivating processes identified with the deactivation identifying information represented by the setting information when the judging part has judged thatType: ApplicationFiled: March 11, 2010Publication date: September 16, 2010Applicant: FUJITSU LIMITEDInventors: Kouichi Yasaki, Toshihiro Sonoda
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Publication number: 20100159881Abstract: A method for controlling a stop and a recovery of a communication function for performing external communication, the method includes acquiring an operation condition of a main body of the computer while the communication function is stopped, determining whether the communication function is recoverable based on the acquired operation condition, and limiting use of the main body of the computer when the communication function is determined to be recoverable.Type: ApplicationFiled: December 16, 2009Publication date: June 24, 2010Applicant: FUJITSU LIMITEDInventors: Kouichi YASAKI, Kazuaki Nimura, Yousuke Nakamura
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Publication number: 20100161772Abstract: A control assistance system and method include transmitting identification information and part identification information of a managed apparatus, storing identification information of the managed apparatus and the part identification information in a correspondence manner, specifying a combination of parts of the managed apparatus based on a correspondence between the identification information received from the managed apparatus and the identification information stored in the database, writing the received identification information in the database according to the specified combination of parts of the managed apparatus and transmitting a signal of restricting an operation to the specified managed apparatus.Type: ApplicationFiled: November 18, 2009Publication date: June 24, 2010Applicant: FUJITSU LIMITEDInventors: Yousuke NAKAMURA, Kazuaki Nimura, Kouichi Yasaki