Patents by Inventor Akane Sato
Akane Sato 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: 20220185918Abstract: Provided is means capable of reducing the adsorptivity to plastics while suppressing a decrease in intracellular uptake efficiency in an amphiphilic compound that can be applied to long-term blood-retaining liposomes or the like as a drug carrier. The above problem can be solved by an amphiphilic compound comprising a moiety (I) including a constitutional unit (A) derived from a monomer (a) having two or more hydroxyl groups and having 2 to 10 carbon atoms constituting the side chain among the carbon atoms of the constitutional unit, and a hydrocarbon group having 8 or more carbon atoms.Type: ApplicationFiled: March 30, 2020Publication date: June 16, 2022Inventors: Masato IMASE, Akane SATO
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Publication number: 20190137068Abstract: A vehicular lighting fixture has a lens body and a light source. The lens body includes: a light incident portion; a lens cut portion having lens cut surfaces to internally reflect light entered through the light incident portion; and a light irradiating portion provided on a front surface thereof allowing light to exit therethrough. The lens cut surfaces are formed from surfaces of a conical surface having a rotation axis, and defined by an arbitrary surface and a vertical plane extending in a direction perpendicular to the rotation axis from a line of intersection between the arbitrary surface and another conical surface disposed inside the conical surface and having the same rotation axis as that of the conical surface. The lens cut portion provided between the front surface and the rear surface of the lens body is in a region overlapping with the light irradiating portion in a front view.Type: ApplicationFiled: October 17, 2018Publication date: May 9, 2019Inventors: Akane Sato, Nobuyuki Suzuki, Toshihiko Yajima
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Patent number: 8819417Abstract: A validation server using HSM, which reduces required process time from receiving a validation request to responding with a validation result, and comprises a first software cryptographic module 142 and a second software cryptographic module 143 on a validation server 130 whose HSM is coupled with an I/F part 148. According to the validation server, load states of HSM, the first software cryptographic module 142 and the second software cryptographic module 143 are monitored by a cryptographic module monitor unit 141, and when cryptographic calculations in a validation process of certificates are conducted, the cryptographic calculations are executed by using the least loaded cryptographic module selected at a cryptographic module selector unit 140.Type: GrantFiled: February 28, 2012Date of Patent: August 26, 2014Assignee: Hitachi, Ltd.Inventors: Yoko Hashimoto, Takahiro Fujishiro, Masahiko Furuya, Masami Uzawa, Shingo Hane, Akane Sato
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Patent number: 8635449Abstract: In response to a validation request that includes second information identifying the certificate authority, key information of the certificate authority at issuance of the public key certificate, and information identifying the public key certificate, if the second information identifying the certificate authority included in the validation request corresponds to the first information identifying the certificate authority included in the authority certificate, and the information identifying the public key certificate included in the validation request does not exist in the revocation information, the validation server creates a validation result indicating that the public key certificate corresponding to the information identifying the public key certificate included in the validation request is valid.Type: GrantFiled: November 1, 2012Date of Patent: January 21, 2014Assignee: Hitachi, Ltd.Inventors: Akane Sato, Yoko Hashimoto, Shingo Hane, Takahiro Fujishiro, Masahiko Furuya, Masami Uzawa
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Patent number: 8380985Abstract: A certificate validation method for causing a certificate validation server to receive a certificate validation request from a given terminal device, build a certification path of from a first certificate authority (CA) to a second CA, perform validation of the certification path, and send a validation result to the terminal which issued the certificate validation request is disclosed. The validation server detects either a key update of any given CA or a compromise of the given CA, acquires a certificate of relevant CA and first certificate status information and second certificate status information, stores the acquired information in a storage unit or, alternatively, updates the information stored in the storage based on the acquired information, and performs the building of a certification path and validation of the certification path by use of the information of the storage unit.Type: GrantFiled: June 29, 2010Date of Patent: February 19, 2013Assignee: Hitachi, Ltd.Inventors: Akane Sato, Takahiro Fujishiro, Shingo Hane, Yoko Hashimoto, Masahiko Furuya, Masami Ogawa
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Patent number: 8347082Abstract: In response to a validation request that includes second information identifying the certificate authority, key information of the certificate authority at issuance of the public key certificate, and information identifying the public key certificate, if the second information identifying the certificate authority included in the validation request corresponds to the first information identifying the certificate authority included in the authority certificate, and the information identifying the public key certificate included in the validation request does not exist in the revocation information, the validation server creates a validation result indicating that the public key certificate corresponding to the information identifying the public key certificate included in the validation request is valid.Type: GrantFiled: August 18, 2009Date of Patent: January 1, 2013Assignee: Hitachi, Ltd.Inventors: Akane Sato, Yoko Hashimoto, Shingo Hane, Takahiro Fujishiro, Masahiko Furuya, Masami Uzawa
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Publication number: 20120159158Abstract: A validation server using HSM, which reduces required process time from receiving a validation request to responding with a validation result, and comprises a first software cryptographic module 142 and a second software cryptographic module 143 on a validation server 130 whose HSM is coupled with an I/F part 148. According to the validation server, load states of HSM, the first software cryptographic module 142 and the second software cryptographic module 143 are monitored by a cryptographic module monitor unit 141, and when cryptographic calculations in a validation process of certificates are conducted, the cryptographic calculations are executed by using the least loaded cryptographic module selected at a cryptographic module selector unit 140.Type: ApplicationFiled: February 28, 2012Publication date: June 21, 2012Applicant: HITACHI, LTD.Inventors: Yoko HASHIMOTO, Takahiro FUJISHIRO, Masahiko FURUYA, Masami UZAWA, Shingo HANE, Akane SATO
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Patent number: 8176316Abstract: A validation server using HSM, which reduces required process time from receiving a validation request to responding with a validation result, and comprises a first software cryptographic module 142 and a second software cryptographic module 143 on a validation server 130 whose HSM is coupled with an I/F part 148. According to the validation server, load states of HSM, the first software cryptographic module 142 and the second software cryptographic module 143 are monitored by a cryptographic module monitor unit 141, and when cryptographic calculations in a validation process of certificates are conducted, the cryptographic calculations are executed by using the least loaded cryptographic module selected at a cryptographic module selector unit 140.Type: GrantFiled: February 25, 2009Date of Patent: May 8, 2012Assignee: Hitachi, Ltd.Inventors: Yoko Hashimoto, Takahiro Fujishiro, Masahiko Furuya, Masami Uzawa, Shingo Hane, Akane Sato
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Publication number: 20120066490Abstract: A cryptographic device management server receives a first cryptographic calculation request from an arbitrary terminal device via a network, transmits a second cryptographic calculation request generated on the basis of the first cryptographic calculation request, management information of the terminal device and management information of the cryptographic device to a cryptographic device selected on the basis of the management information of the terminal devices and management information of the cryptographic devices stored in the cryptographic device management server, via a connection interface, receives a second cryptographic calculation result from the cryptographic device, and transmits a first cryptographic calculation result generated on the basis of the second cryptographic calculation result, the management information of the terminal device and the management information of the cryptographic device to the terminal device of the source of the first cryptographic calculation request via the network.Type: ApplicationFiled: August 15, 2011Publication date: March 15, 2012Inventors: Akane Sato, Takahiro Fujishiro, Masahiko Furuya, Masami Ogawa
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Publication number: 20110231662Abstract: The validation server obtains information related to a first cryptographic method from a certificate which is contained in a certificate validation request from a terminal device. When the information related to the first cryptographic method is not stored in a storage unit of the validation server as valid information, the validation server determines that the information related to the first cryptographic method is invalid. When the information related to the first cryptographic method is stored in the storage unit as valid information and also the information related to a second cryptographic method listed in the certificate in the certification path is not stored in the storage unit during the certification path validation, the validation server determines that the information related to the second cryptographic method is invalid.Type: ApplicationFiled: February 4, 2011Publication date: September 22, 2011Inventors: AKANE SATO, Takahiro Fujishiro, Masahiko Furuya, Masami Ogawa
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Publication number: 20110004763Abstract: A certificate validation method for causing a certificate validation server to receive a certificate validation request from a given terminal device, build a certification path of from a first certificate authority (CA) to a second CA, perform validation of the certification path, and send a validation result to the terminal which issued the certificate validation request is disclosed. The validation server detects either a key update of any given CA or a compromise of the given CA, acquires a certificate of relevant CA and first certificate status information and second certificate status information, stores the acquired information in a storage unit or, alternatively, updates the information stored in the storage based on the acquired information, and performs the building of a certification path and validation of the certification path by use of the information of the storage unit.Type: ApplicationFiled: June 29, 2010Publication date: January 6, 2011Inventors: Akane SATO, Takahiro Fujishiro, Shingo Hane, Yoko Hashimoto, Masahiko Furuya, Masami Ogawa
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Publication number: 20100122081Abstract: In response to a validation request that includes second information identifying the certificate authority, key information of the certificate authority at issuance of the public key certificate, and information identifying the public key certificate, if the second information identifying the certificate authority included in the validation request corresponds to the first information identifying the certificate authority included in the authority certificate, and the information identifying the public key certificate included in the validation request does not exist in the revocation information, the validation server creates a validation result indicating that the public key certificate corresponding to the information identifying the public key certificate included in the validation request is valid.Type: ApplicationFiled: August 18, 2009Publication date: May 13, 2010Inventors: Akane Sato, Yoko Hashimoto, Shingo Hane, Takahiro Fujishiro, Masahiko Furuya, Masami Uzawa
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Publication number: 20090300349Abstract: A validation server using HSM, which reduces required process time from receiving a validation request to responding with a validation result, and comprises a first software cryptographic module 142 and a second software cryptographic module 143 on a validation server 130 whose HSM is coupled with an I/F part 148. According to the validation server, load states of HSM, the first software cryptographic module 142 and the second software cryptographic module 143 are monitored by a cryptographic module monitor unit 141, and when cryptographic calculations in a validation process of certificates are conducted, the cryptographic calculations are executed by using the least loaded cryptographic module selected at a cryptographic module selector unit 140.Type: ApplicationFiled: February 25, 2009Publication date: December 3, 2009Inventors: Yoko HASHIMOTO, Takahiro FUJISHIRO, Masahiko FURUYA, Masami UZAWA, Shingo HANE, Akane SATO