Patents by Inventor Yuji Watanabe
Yuji Watanabe 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: 20130332731Abstract: A server that holds context-free grammar and is connectable to a client that holds an automaton. The server compares an edge pair with an encrypted string value such that the encrypted string value is hidden from the client. The edge pair represents a string for an encrypted value in which a nonfinal character is made to correspond to a state before and the state after held by the client and an encrypted string value represents a string for an encrypted value in which each of a plurality of nonfinal characters contained in a substituted symbol string for a production rule for the context-free grammar is given correspondence with an assigned state before and state after. The encrypted value in which in which the encrypted string value matches the edge pair has been encrypted is sent to the client along with the state before and state after that has been assigned.Type: ApplicationFiled: May 23, 2013Publication date: December 12, 2013Applicant: International Business Machines CorporationInventors: Takaaki Tateishi, Yuji Watanabe
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Patent number: 8599006Abstract: A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device is configured to emit a movement notification sound to outside of a vehicle to inform a person in an area surrounding the vehicle that the vehicle will move. The notification sound control device is configured to operate the sound emitting device to emit a movement notification during a period from when a vehicle speed becomes equal to or smaller than a prescribed value until a prescribed amount of time has elapsed in a situation where the vehicle speed becomes equal to or smaller than the prescribed value while the forward movement notification sound is being emitted.Type: GrantFiled: February 7, 2011Date of Patent: December 3, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Hironori Saito, Katsumi Kimura, Tsuyoshi Kanuma, Hideo Yoshino, Yuji Watanabe, Toshiyuki Yamamoto
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Publication number: 20130247728Abstract: An optical fiber cutter/coating material remover apparatus includes an optical fiber cutter unit and a coating material remover unit, the apparatus being configured such that the end portion of the multi-core optical fiber is cut while the optical fiber cutter unit is apart from the coating material remover unit, the cut end portion of the multi-core optical fiber is inserted into the coating material remover unit by sliding the optical fiber cutter unit or the coating material remover unit so that the optical fiber cutter unit and the coating material remover unit are in contact with each other, and then the coating material is removed by sliding the optical fiber cutter unit or the coating material remover unit so that the optical fiber cutter unit is apart from the coating material remover unit.Type: ApplicationFiled: March 12, 2013Publication date: September 26, 2013Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Minoru SEKINE, Yuji Watanabe, Yoshimi Iijima
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Patent number: 8538937Abstract: A database search system ensures the privacy of a search request and the security of a database with high processing efficiency. The system comprises a database server residing on a network that stores predetermined data, and a client terminal issuing to the database server a search request for inquiring for desired data while keeping the desired data secret. The database server further comprises: a database storing predetermined data; and a search response message generation unit for receiving through a network the data search request in which data to be searched for is kept secret, searching the database by a predetermined computation based on the search request and a list of the data stored in the database while a data item involved with the search request is kept secret, and generating a response to the search request.Type: GrantFiled: April 22, 2003Date of Patent: September 17, 2013Assignee: International Business Machines CorporationInventors: Masayuki Numao, Yuji Watanabe
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Patent number: 8476954Abstract: A DC source generates a DC voltage between a positive electrode and a negative electrode. An inductive element and a parallel-connected switch-circuits unit are provided in a conductive path extending from the positive electrode to the negative electrode. The parallel-connected switch-circuits unit includes a plurality of switch circuits connected in parallel with one another. The switch circuit opens and closes the conductive path in accordance with a drive signal inputted from a drive circuit. The drive signal causes the plurality of switch circuits to successively perform an ON operation in which the conductive path is closed and then opened. A pulse voltage generation period in which a pulse voltage occurs in the inductive element continuously follows an ON period which is a duration from when the conductive path is closed to when the conductive path is opened.Type: GrantFiled: November 29, 2011Date of Patent: July 2, 2013Assignee: NGK Insulators, Ltd.Inventors: Tatsuya Terazawa, Sozaburo Hotta, Yuji Watanabe
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Patent number: 8463712Abstract: A system for enabling verification in traceability of a supply chain while maintaining confidentiality of private suppliers. A group signature is applied to an undisclosed supplier. The undisclosed supplier previously receives registration to the certificate authority device, and performs a group signature based on the certificate issued by the certificate authority device. A disclosed supplier and the undisclosed supplier sign and generate a signature chain when they ship parts. A verifier device receives a signature chain with products shipped from the supplier manager device, divides a signature of the disclosed supplier from a signature chain, and verifies the undisclosed supplier from the group signature. Identification of the undisclosed supplier is performed by a third-party auditor system requested to do so by the verifier device by using a group private key.Type: GrantFiled: August 5, 2009Date of Patent: June 11, 2013Assignee: International Business Machines CorporationInventors: Mika Saito, Yuji Watanabe, Madoka Yuriyama, Takeo Yoshizawa
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Patent number: 8433917Abstract: Effective utilization of a database while protecting a data provider's privacy is accomplished by an access control system which controls access to a database in which open information and secret information about a data provider are stored while being related to each other has an output request acquisition section which obtains an output request for output of information generated by accessing the database, a plural-term output authorization section which prohibits output of information generated by combining the open information and the secret information in output information requested to be output according to the output request, and which permits output of information generated by using the secret information without using the open information, and an output section which outputs the information in the output information permitted by the plural-term output authorization section to be output.Type: GrantFiled: December 16, 2008Date of Patent: April 30, 2013Assignee: International Business Machines CorporationInventors: Madoka Yuriyama, Yuji Watanabe, Masayuji Numao
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Patent number: 8386780Abstract: Cryptographic communication system including a sender terminal for encrypting and transmitting a message, a recipient terminal for receiving and decrypting the encrypted message, an agent terminal for decrypting the message in place of the recipient terminal, and a conversion server for supporting the agent terminal to decrypt the message. The sender terminal encrypts the message using a public key of the recipient terminal. Using a public key of the conversion server, a predetermined restricted condition, and a secret key for decryption of the message, the recipient terminal generates a delegation key allowing decryption of the message under the restricted condition and passes the delegation key to the agent terminal. The conversion server validates a power of the agent terminal to decrypt the message based on the information contained in the delegation key from the agent terminal. The agent terminal then decrypts the message with validation of the conversion server.Type: GrantFiled: June 3, 2003Date of Patent: February 26, 2013Assignee: International Business Machines CorporationInventors: Yuji Watanabe, Masayuki Numao
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Publication number: 20130017702Abstract: In an electronic device, a slider is disposed in an insertion opening of a housing of a card edge connector. The slider is movable with an insertion operation of a circuit board into the insertion opening from an initial position before the circuit board is inserted to an insertion completed position where the insertion operation of the circuit board is completed by being pushed by the circuit board. When the slider is at the initial position, terminal projections are supported on a support surface of the slider in a resiliently deformed condition so that contacts are separated from an electrode-formed surface of the circuit board. When the slider is at the insertion completed position, the terminal projections are completely separated from the slider and in a state of applying a spring back force of resilient deformation to the circuit board through the contacts.Type: ApplicationFiled: February 23, 2012Publication date: January 17, 2013Applicant: DENSO CORPORATIONInventors: Takashi KAMIYA, Taku Iida, Yuji Watanabe
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Publication number: 20130009769Abstract: A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device is configured to emit a movement notification sound to outside of a vehicle to inform a person in an area surrounding the vehicle that the vehicle will move. The notification sound control device is configured to operate the sound emitting device to emit a movement notification during a period from when a vehicle speed becomes equal to or smaller than a prescribed value until a prescribed amount of time has elapsed in a situation where the vehicle speed becomes equal to or smaller than the prescribed value while the forward movement notification sound is being emitted.Type: ApplicationFiled: February 7, 2011Publication date: January 10, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Hironori Saito, Katsumi Kimura, Tsuyoshi Kanuma, Hideo Yoshino, Yuji Watanabe, Toshiyuki Yamamoto
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Patent number: 8351217Abstract: A wiring board of the present invention comprises a plurality of device formation areas each for mounting a semiconductor chip thereon, and two or more slits formed in an area which comes into contact with a molding die when the wiring board is placed in a cavity of the molding die for forming a sealant to collectively cover the plurality of device formation areas.Type: GrantFiled: December 16, 2009Date of Patent: January 8, 2013Assignee: Elpida Memory, Inc.Inventor: Yuji Watanabe
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Publication number: 20120317099Abstract: A system for controlling disclosure of trace data related to moving object, including a first receiving module for receiving, for at least one moving object in a first region, a first record aggregate; a second receiving module for receiving, for at least one moving object in a second region, a second record aggregate; a calculating module for calculating trace data from at least one attribute value of a first identifier that is in received first and second record aggregates in response to data search request; an anonymizing module for calculating to satisfy a condition of the moving object passing through at least one region; and a transmitting module for returning calculated trace data as a search result if the moving object moves in calculated ranges and if the moving object has the first identifier that is in both the received first and second record aggregates.Type: ApplicationFiled: August 21, 2012Publication date: December 13, 2012Applicant: International Business Machines CorporationInventors: Naohiko Uramoto, Yuji Watanabe
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Publication number: 20120299717Abstract: A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device is configured to emit a movement notification sound to an outside of a vehicle to inform a person in an area surrounding the vehicle that the vehicle will move. The notification sound control device is configured to operate the sound emitting device in response to occurrence of a vehicle condition. The notification sound control device setting the movement notification sound of the sound emitting device to a frequency in a range of 1.5 kHz to 6 kHz.Type: ApplicationFiled: February 7, 2011Publication date: November 29, 2012Applicant: NISSAN MOTOR CO., LTD.Inventors: Hideo Yoshino, Tsuyoshi Kanuma, Hironori Saito, Katsumi Kimura, Yuji Watanabe, Toshiyuki Yamamoto
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Publication number: 20120299716Abstract: A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device emits forward and reverse advancement notification sounds outside of a vehicle to inform a person in an area surrounding the vehicle that the vehicle will move. The notification sound control device operates the sound emitting device to selectively emit the forward and reverse movement notifications. The notification sound control device includes forward and reverse advancement notification sound emission timing sections. A start timing of the forward advancement notification sound is set in response to both a forward movement shift operation having been performed and an additional start movement preparation operation of the vehicle having been performed. A start timing of the reverse movement notification sound is set to be emitted immediately in response to the reverse movement shift operation having been performed.Type: ApplicationFiled: February 7, 2011Publication date: November 29, 2012Applicant: NISSAN MOTOR CO., LTD.Inventors: Hideo Yoshino, Tsuyoshi Kanuma, Hironori Saito, Katsumi Kimura, Yuji Watanabe, Toshiyuki Yamamoto
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Publication number: 20120293318Abstract: A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device emits a starting movement notification sound to outside of a vehicle to inform a person in an outside area surrounding the vehicle that the vehicle will transition from a stopped state to a moving state, and emits a moving notification sound to outside of the vehicle to inform a person in the outside area surrounding the vehicle that the vehicle is moving. The notification sound control device operates the sound emitting device to selectively emit the starting movement notification sound. The notification sound control device includes a notification sound emission timing section that sets a start timing of the starting movement notification sound in response to a shift operation having been performed and an additional start movement preparation operation of the vehicle having been performed.Type: ApplicationFiled: February 7, 2011Publication date: November 22, 2012Applicant: NISSAN MOTOR CO., LTD.Inventors: Hironori Saito, Katsumi Kimura, Tsuyoshi Kanuma, Hideo Yoshino, Yuji Watanabe, Toshiyuki Yamamoto
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Publication number: 20120296520Abstract: A vehicle notification sound emitting apparatus is basically provided with a first sound emitting device, a second sound emitting device and a notification sound control device. The first sound emitting device emits a first intermittent notification sound inside a cabin interior of a vehicle. The second sound emitting device emits a second intermittent notification sound outside of the cabin interior of the vehicle. The notification sound control device operates the first and second sound emitting devices to separately emit the first and second intermittent notification sounds in at least a partially overlapping pattern in response to occurrence of a vehicle condition to convey a same type of vehicle information to both inside and outside of the cabin interior of the vehicle. The notification sound control device includes a cabin interior-exterior notification sound synchronizing section that is configured to synchronize the first and second intermittent notification sounds.Type: ApplicationFiled: February 7, 2011Publication date: November 22, 2012Applicant: NISSAN MOTOR CO., LTD.Inventors: Hironori Saito, Katsumi Kimura, Tsuyoshi Kanuma, Hideo Yoshino, Yuji Watanabe, Toshiyuki Yamamoto
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Publication number: 20120197873Abstract: A method and system for controlling disclosure of trace data related to moving object. The method includes the steps of: receiving, for at least one moving object in a first region, a first record aggregate; receiving, for at least one moving object in a second region, a second record aggregate; calculating trace data from at least one attribute value of a first identifier that is in received first and second record aggregates in response to data search request; calculating to satisfy a condition of the moving object passing through at least one region and to satisfy another condition of at least two of the moving objects being present in each of the region; and returning calculated trace data as a search result if the moving object moves in calculated ranges and if the moving object has the first identifier that is in both the received first and second record aggregates.Type: ApplicationFiled: January 17, 2012Publication date: August 2, 2012Applicant: International Business Machines CorporationInventors: Naohiko Uramoto, Yuji Watanabe
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Patent number: 8222737Abstract: A BGA semiconductor device includes a semiconductor package and a mounting board mounting thereon the semiconductor package, wherein an array of signal electrodes of the semiconductor package and an array of signal electrodes of the mounting board are coupled together via signal bumps. The BGA semiconductor device also includes a dummy bump, which reinforces the bending strength of the BGA semiconductor device and is broken by a shearing force caused by thermal expansion to alleviate the stress for the signal bumps.Type: GrantFiled: July 29, 2010Date of Patent: July 17, 2012Assignee: Elpida Memory, Inc.Inventors: Yuji Watanabe, Hisashi Tanie, Koji Hosokawa, Mitsuaki Katagiri, Ichiro Anjo
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Publication number: 20120139604Abstract: A DC source generates a DC voltage between a positive electrode and a negative electrode. An inductive element and a parallel-connected switch-circuits unit are provided in a conductive path extending from the positive electrode to the negative electrode. The parallel-connected switch-circuits unit includes a plurality of switch circuits connected in parallel with one another. The switch circuit opens and closes the conductive path in accordance with a drive signal inputted from a drive circuit. The drive signal causes the plurality of switch circuits to successively perform an ON operation in which the conductive path is closed and then opened. A pulse voltage generation period in which a pulse voltage occurs in the inductive element continuously follows an ON period which is a duration from when the conductive path is closed to when the conductive path is opened.Type: ApplicationFiled: November 29, 2011Publication date: June 7, 2012Applicant: NGK Insulators, Ltd.Inventors: Tatsuya TERAZAWA, Sozaburo HOTTA, Yuji WATANABE
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Publication number: 20120117657Abstract: A system which implements a method for providing attribute data. A request is received from a user device via a network for a virtual ID token relating to attribute information pertaining to a subscriber associated with the user device. A data record including L attributes of the subscriber is read from a database, L being at least 2. The data record is provided to the user device via the network. A selection of M attributes of the L attributes is received from the user device via the network, M being less than L. A virtual record including the M attributes selected from the data record is generated, the virtual record including a virtual ID (VID) for identifying the virtual record. The generated virtual record is stored in the database. The virtual ID token is provided to the user device via the network, wherein the virtual ID token includes the VID.Type: ApplicationFiled: January 4, 2012Publication date: May 10, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yoshinobu Ishigaki, Masayuki Numao, Madoka Yuriyama, Yuji Watanabe