Patents by Inventor Koji Okada
Koji Okada 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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Patent number: 8732461Abstract: A client apparatus receives a message including a random number from a server apparatus during the handshake of agreement process, creates a biometric negotiation message including the biometric authentication method information and sends the biometric negotiation message to the server apparatus. Then, the client apparatus executes a biometric authentication based on biometric authentication method information notified from the server apparatus and encrypts the random number based on the private key. In addition, the client apparatus generates an authenticator from a result of the biometric authentication, the biometric authentication method information, the encrypted random number, and the client certificate, and sends to the server apparatus an authentication context including these. The server apparatus verifies the authentication context and establishes a secure session in one handshake.Type: GrantFiled: February 12, 2010Date of Patent: May 20, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions CorporationInventors: Yoshihiro Fujii, Tatsuro Ikeda, Koji Okada, Tomoaki Morijiri, Minoru Nishizawa, Hidehisa Takamizawa, Asahiko Yamada
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Patent number: 8719950Abstract: According to one embodiment, an access control apparatus suspends the resource access event prior to access of the resource access device when the resource access event is started. The access control apparatus acquires attribute information from the attribute management device by using the deny-type policy in the access control policy and decides the permission or the denial of the access based on this attribute information and the deny-type policy. The access control apparatus releases the suspension when a result of decision in the supplied access decision result is indicative of the permission and no obligation-type policy is present in the access decision response.Type: GrantFiled: December 3, 2012Date of Patent: May 6, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions CorporationInventors: Tatsuro Ikeda, Koji Okada, Norikazu Hosaka, Toshio Okamoto
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Patent number: 8688969Abstract: A cryptographic management apparatus includes a storage unit which stores cryptographic key information containing a cryptographic key and cryptographic process condition information containing the cryptographic key information, a cryptographic process information input unit which receives an input of the object information and cryptographic key search request information, a cryptographic key information acquisition unit which acquires the cryptographic key information from the storage unit based on the search request information, a cryptographic module evaluation description information acquisition unit which acquires evaluation description information of the cryptographic module corresponding to the cryptographic key information, a cryptographic process ID creation unit which attaches an identifier of the cryptographic process condition information to the object information based on the cryptographic key information and the cryptographic module corresponding to the evaluation description information, and anType: GrantFiled: September 25, 2008Date of Patent: April 1, 2014Assignees: Toshiba Solutions Corporation, Yokosuka Telecom Research Park, Inc.Inventors: Shingo Miyazaki, Takanori Nakamizo, Akito Niwa, Koji Okada, Kouya Tochikubo, Shigeyuki Fukushima, Chiaki Ishikawa, Noboru Koshizuka, Ken Sakamura
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Publication number: 20140050318Abstract: A re-encryption key generator according to an embodiment generates a re-encryption key required to re-encrypt, without decrypting, ciphertext data obtained by encrypting plaintext data by means of a first public key of a first user device to obtain re-encrypted text data which can be decrypted by a second private key of a second user device. The first storage device stores a first private key corresponding to the first public key. The second storage device stores a second public key corresponding to the second private key. The re-encryption key generation device generates the re-encryption key based on the first private key, the second public key, and the first random number.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicants: Toshiba Solutions Corporation, Kabushiki Kaisha ToshibaInventors: Ryotaro Hayashi, Tatsuyuki Matsushita, Yoshihiro Fujii, Takuya Yoshida, Koji Okada
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Patent number: 8651218Abstract: A muffler of a construction machine is formed by respectively coupling silencers to entrance and exit sides of an exhaust-gas purifying device by flanges. In flange coupling portions, mounting seats are provided integrally with lower semicircumferential portions of the flanges of the silencers in a manner such as to protrude toward outer peripheries of the flanges. By coupling the mounting seats to muffler mount brackets attached to a muffler mount, the muffler is mounted on the muffler mount.Type: GrantFiled: November 17, 2009Date of Patent: February 18, 2014Assignee: Kobelco Construction Machinery Co., Ltd.Inventor: Koji Okada
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Patent number: 8638140Abstract: A phase locked loop (PLL) circuit including a phase comparator for comparing a phase of a reference signal with a phase of a feedback signal, an oscillator for outputting an output signal at a frequency in accordance with an output of the phase comparator, a feedback loop for returning the output signal of the oscillator and supplying the output signal as the feedback signal, and a delay circuit for delaying the phase of the output signal output from the oscillator to a load circuit, wherein the delay circuit is provided outside the feedback loop.Type: GrantFiled: July 26, 2012Date of Patent: January 28, 2014Assignee: Spansion LLCInventor: Koji Okada
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Publication number: 20140018479Abstract: A rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and a tire having small rolling resistance and excellent impact resilience are provided. The rubber composition of the present invention is obtained by kneading a rubber component containing a conjugated diene polymer (A) having at least one functional group selected from a tertiary amino group, a thiol group, a hydroxyl group, an epoxy group, a carboxylic acid group, a thioepoxy group, a hydrocarbylthio group and a hydrocarbylsilyl group and a conjugated diene polymer (B) having no functional group chemically bondable to silica, silica (C) and a dispersing agent (D) composed of an organic compound having at least one element selected from the group consisting of nitrogen, carbonyl oxygen and ether oxygen.Type: ApplicationFiled: March 16, 2012Publication date: January 16, 2014Applicant: JSR CorporationInventors: Koji Okada, Ryoji Tanaka
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Publication number: 20130345335Abstract: A rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and a tire having small rolling resistance and excellent impact resilience are provided. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer having a functional group bondable to silica, an acylate compound containing metal and silica. In the present invention, a polymer having no functional group bondable to silica is preferably kneaded as a rubber component other than the conjugated diene polymer, together with the conjugated diene polymer having a functional group bondable to silica, the acylate compound containing metal and the silica.Type: ApplicationFiled: February 9, 2012Publication date: December 26, 2013Applicant: JSR CorporationInventors: Masahiro Shibata, Koji Okada
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Publication number: 20130339726Abstract: According to one embodiment, a reception unit receives post-office box's encrypted data, which is obtained by encrypting the data by using a post-office box's public key, from the sending apparatus. A re-encryption key storage unit stores a re-encryption key used for re-encrypting the post-office box's encrypted data into recipient's encrypted data, which is obtained by encrypting the data using a recipient's public key that is different from the post-office box's public key. A re-encryption unit re-encrypts the received post-office box's encrypted data to the recipient's encrypted data using the re-encryption key stored in the re-encryption key storage unit. A transmission unit transmits the re-encrypted recipient's encrypted data to the receiving apparatus.Type: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicants: TOSHIBA SOLUTIONS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Takuya YOSHIDA, Koji Okada
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Publication number: 20130324667Abstract: Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer (A) having a group with bonding reactivity to silica only at one site of one molecule of the polymer, a polymer (B) having groups with bonding reactivity to silica at a plurality of sites of one molecule of the polymer, and a filler (C) containing silica.Type: ApplicationFiled: February 15, 2012Publication date: December 5, 2013Applicant: JSR CORPORATIONInventors: Takeshi Yuasa, Koji Okada
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Publication number: 20130324659Abstract: A rubber composition which can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and a tire having small rolling resistance and excellent impact resilience are provided. The rubber composition of the present invention is obtained by kneading a rubber component comprising a conjugated diene polymer having at least one functional group selected from the group consisting of a tertiary amino group, a thiol group, an epoxy group, a thioepoxy group, an oxetane group and a hydrocarbylthio group, a catalyst for condensing silanol, and silica.Type: ApplicationFiled: February 9, 2012Publication date: December 5, 2013Applicant: JSR CORPORATIONInventors: Masahiro Shibata, Koji Okada
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Publication number: 20130324657Abstract: Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a rubber component containing 30 to 95% by mass of a conjugated diene polymer (A) and 5 to 70% by mass of cross-linked rubber particles (B) with 20 to 100 parts by mass of silica (C) based on 100 parts by mass of the rubber component.Type: ApplicationFiled: February 14, 2012Publication date: December 5, 2013Applicant: JSR CorporationInventors: Koji Okada, Ryoji Tanaka
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Publication number: 20130293313Abstract: An oscillation circuit including a reference voltage generation circuit that adds a proportional-to-absolute-temperature (PTAT) output, which increases in proportion to an absolute temperature, to a complementary-to-absolute-temperature (CTAT) output, which decreases in proportion to an absolute temperature, to generate and output a reference voltage. The oscillation circuit generates an oscillation signal having a desired and fixed frequency.Type: ApplicationFiled: July 9, 2013Publication date: November 7, 2013Inventors: Kazuhiro MITSUDA, Koji Okada, Suguru Tachibana
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Patent number: 8578446Abstract: A configuration including, in authentication contexts, function unit identification information unique to the function unit that has executed an authentication subprocess in entity devices permits an authentication apparatus to specify the function unit that has executed the authentication subprocess in the entity devices. The verifier, therefore, can verify the legitimacy of the authentication subprocess from the authentication context even in the presence of a plurality of function units capable of executing the same authentication subprocess in the entity devices.Type: GrantFiled: January 3, 2008Date of Patent: November 5, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions CorporationInventors: Hidehisa Takamizawa, Koji Okada, Tomoaki Morijiri, Tatsuro Ikeda, Minoru Nishizawa, Yoshihiro Fujii, Asahiko Yamada
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Publication number: 20130246281Abstract: According to one embodiment, the verifying device sends, to the service providing device, the user identification information in the user identification information certificate and the execution result that indicates properness when all the verification results are proper. the service providing device reads service user identification information associated with the user identification information in response to user identification information and a verification result. The service providing device sends the service information to the user terminal in accordance with the read service user identification information.Type: ApplicationFiled: May 10, 2013Publication date: September 19, 2013Applicants: TOSHIBA SOLUTIONS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: Asahiko YAMADA, Koji Okada, Tatsuro Ikeda
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Patent number: 8519874Abstract: A successive approximation A/D converter, has a main DAC having a capacitive element group coupled to a top node and a switch group; a comparator comparing voltage of the top node with comparison reference voltage; a correction DAC generating correction voltage in accordance with a capacitance error of a capacitive element pair to be balanced in the main DAC, and supplying the correction voltage to the top node; and a control circuit generating internal digital input for controlling the switch group and a correction code for controlling the correction voltage, and outputting a successive approximation result by the comparator when the A/D conversion is performed. The control circuit measures a capacitance error of the capacitive element pair to be balanced, and determines an offset-removed capacitance error where an offset generated in the measurement is removed from the capacitance error.Type: GrantFiled: July 19, 2011Date of Patent: August 27, 2013Assignees: Fujitsu Limited, Fujitsu Semiconductor LimitedInventors: Kenta Aruga, Suguru Tachibana, Sanroku Tsukamoto, Koji Okada
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Publication number: 20130213726Abstract: A construction machine including: a frame; an engine on a frame; a hydraulic pump; a guard panel disposed on the frame to surround an engine room and including a maintenance port for the hydraulic pump; an exhaust-gas-purification device inside the engine room; and a support member to support an exhaust-gas-aftertreatment device including the exhaust-gas-purification device just above the hydraulic pump. The support member includes a first portion to support the exhaust-gas-purification device and a second portion to support a NOx-reducing catalyst at a position closer to the maintenance port than the exhaust-gas-purification device. The catalyst supporting portion supports the NOx-reducing catalyst at a position higher than the exhaust-gas-purification device so as to form, over the hydraulic pump, a maintenance space having an upper end higher than an upper end of a space formed under the first portion and the exhaust-gas-purification device.Type: ApplicationFiled: October 14, 2011Publication date: August 22, 2013Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Koji Okada
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Patent number: 8511009Abstract: A securing configuration of a solar cell module includes a plurality of supporting members which are mounted on roof members; a plurality of crosspiece members each of which is inserted between and supported by the supporting pieces of the plurality of supporting members, has first holding portions which hold first fastener members in a slidable manner on both side faces and a second holding portion which holds a second fastener member in a slidable manner on an upper face, and which are arranged at a predetermined interval in the roof lateral direction; and securing members which secure the solar cell module installed on the plurality of crosspiece members such that long sides of the solar cell module are intersected with the plurality of crosspiece members to the crosspiece members through the second fastener members held by the second holding portions.Type: GrantFiled: October 7, 2011Date of Patent: August 20, 2013Assignee: Yanegijutsukenkyujo Co., Ltd.Inventors: Shuichi Kobayashi, Koji Okada, Takayoshi Yamanaka
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Patent number: 8508307Abstract: An oscillation circuit including a reference voltage generation circuit that adds a proportional-to-absolute-temperature (PTAT) output, which increases in proportion to an absolute temperature, to a complementary-to-absolute-temperature (CTAT) output, which decreases in proportion to an absolute temperature, to generate and output a reference voltage. The oscillation circuit generates an oscillation signal having a desired and fixed frequency.Type: GrantFiled: June 10, 2011Date of Patent: August 13, 2013Assignee: Fujitsu Semiconductor LimitedInventors: Kazuhiro Mitsuda, Koji Okada, Suguru Tachibana
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Publication number: 20130204654Abstract: With an object of improving system maintainability, a system which evaluates a maintenance man-hour cost of a component quantitatively is provided, and consequently when a system designer designs a component which is a unit of a subsystem obtained by putting a function of a business application and data together, it is made possible to design the component with a minimum maintenance man-hour cost by extracting a maintenance pattern obtained by patterning an influence extension place, an amendment man-hour cost, and the like at time of maintenance on the basis of maintenance history information and evaluating a maintenance man-hour cost of the component according to the maintenance pattern.Type: ApplicationFiled: August 7, 2012Publication date: August 8, 2013Inventors: Kiyoshi KUMAGAI, Toshiyuki ONO, Yasuharu NAMBA, Masataka ARAKI, Yukinori TERAHAMA, Hidenori AZUSHIMA, Kyoji NISHIDA, Koji OKADA