Patents by Inventor Masahisa Kawashima
Masahisa Kawashima 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: 11757857Abstract: A digital credential issuing system and method use public storage and encryption to provide a more secure digital credential issuing process because there is no direct interaction between the credential issuer and an entity requesting a new credential. The new credential may be secured, such as by using encryption, so that the newly issued credential may be uploaded to the public storage and then decrypted and used by only the particular entity for which the new credential is intended.Type: GrantFiled: January 23, 2017Date of Patent: September 12, 2023Assignee: NTT RESEARCH, INC.Inventors: Go Yamamoto, Masahisa Kawashima
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Publication number: 20230224360Abstract: A processing system performs using an edge device and a server device, wherein the edge device includes processing circuitry configured to process processing target data and output a processing result of the processing target data, determine that the server device is to execute processing related to the processing target data when an evaluation value for evaluating which of the edge device and the server device is to process the processing target data satisfies a condition, determine that the evaluation value is included in a range for determining that processing is to be executed by the edge device when the processing result of the processing target data satisfies a predetermined evaluation, and output the processing result of the processing target data processed, and transmit data that causes the server device to execute the processing related to the processing target data when determining that the server device is to execute the processing.Type: ApplicationFiled: June 15, 2020Publication date: July 13, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Masahisa KAWASHIMA, Daisuke HAMURO, Yoshinori MATSUO, Takeharu EDA, Akira SAKAMOTO, Shohei ENOMOTO, Kyoku SHI
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Patent number: 10389753Abstract: A security system and method are provided that manage the security of a plurality of internet of things (IoT) devices that are part of an enterprise infrastructure. The security system and method may use unspoofable tags wherein each unspoofable tag may be assigned to a category of IoT devices and each unspoofable tag may have a security policy rule assigned to the unspoofable tag (and thus the category of IoT devices) so that IoT devices that are part of the enterprise infrastructure are secured by the security policy rule.Type: GrantFiled: January 25, 2017Date of Patent: August 20, 2019Assignee: NTT INNOVATION INSTITUTE, INC.Inventors: Masahisa Kawashima, Moosa Choudhry, Go Yamamoto, Rich Boyer
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Publication number: 20180212768Abstract: A security system and method are provided that manage the security of a plurality of internet of things (IoT) devices that are part of an enterprise infrastructure. The security system and method may use unspoofable tags wherein each unspoofable tag may be assigned to a category of IoT devices and each unspoofable tag may have a security policy rule assigned to the unspoofable tag (and thus the category of IoT devices) so that IoT devices that are part of the enterprise infrastructure are secured by the security policy rule.Type: ApplicationFiled: January 25, 2017Publication date: July 26, 2018Inventors: Masahisa Kawashima, Moosa Choudhry, Go Yamamoto, Rich Boyer
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Publication number: 20180212941Abstract: A digital credential issuing system and method use public storage and encryption to provide a more secure digital credential issuing process because there is no direct interaction between the credential issuer and an entity requesting a new credential. The new credential may be secured, such as by using encryption, so that the newly issued credential may be uploaded to the public storage and then decrypted and used by only the particular entity for which the new credential is intended.Type: ApplicationFiled: January 23, 2017Publication date: July 26, 2018Inventors: Go Yamamoto, Masahisa Kawashima
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Patent number: 8775796Abstract: A terminal device 4 transmits a certificate issue request including a communication ID thereof and a sub ID to a certificate issuing device 7 via a NW1 (a first network). The certificate issuing device 7 inquires of a communication ID (identifier) checking device 5 whether or not the communication ID included in the certificate issue request is in use or not and inquires of a communication ID/sub ID checking device 6 whether or not the communication ID and the sub ID are associated with each other. If both the check results are OK, the certificate issuing device 7 generates a certificate including the ID of the certificate issuing device 7, the communication ID, the sub ID and a validity period and transmits the certificate to the terminal device 4. In this way, a certificate with a short validity period can be issued only based on the access to the NW1 using the communication ID and the sub ID.Type: GrantFiled: February 7, 2008Date of Patent: July 8, 2014Assignee: Nippon Telegraph and Telephone CorporationInventors: Kei Karasawa, Masahisa Kawashima, Yukio Tsuruoka, Kenji Takahashi, Shingo Orihara
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Publication number: 20110185171Abstract: A terminal device 4 transmits a certificate issue request including a communication ID thereof and a sub ID to a certificate issuing device 7 via a NW1. The certificate issuing device 7 inquires of a communication ID checking device 5 whether or not the communication ID included in the certificate issue request is in use or not and inquires of a communication ID/sub ID checking device 6 whether or not the communication ID and the sub ID are associated with each other. If both the check results are OK, the certificate issuing device 7 generates a certificate including the ID of the certificate issuing device 7, the communication ID, the sub ID and a validity period and transmits the certificate to the terminal device 4. In this way, a certificate with a short validity period can be issued only based on the access to the NW1 using the communication ID and the sub ID.Type: ApplicationFiled: February 7, 2008Publication date: July 28, 2011Applicant: Nippon Telegraph and Telephone Corp.Inventors: Kei Karasawa, Masahisa Kawashima, Yukio Tsuruoka, Kenji Takahashi, Shingo Orihara
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Patent number: 7580980Abstract: A recipient identifier and communication condition information stored in a recipient-identifier storing unit are encrypted by an identifier-for-disclosure creating unit of a recipient terminal to create an identifier-for-disclosure. An identifier-for-disclosure notifying unit notifies a sender terminal of the identifier-for-disclosure. When a communication request using the identifier-for-disclosure is sent from the recipient terminal, a restoring unit of a relay system extracts the communication condition information from the identifier-for-disclosure. Only when communication conditions included in the communication condition information are satisfied, communication between the recipient terminal and the sender terminal is established.Type: GrantFiled: December 19, 2003Date of Patent: August 25, 2009Assignee: Nippon Telegraph and Telephone CorporationInventors: Masahisa Kawashima, Fumitaka Hoshino, Akiko Fujimura, Shingo Kinoshita, Masayoshi Nakao, Noriaki Saito, Yukio Tsuruoka, Katsumi Takahashi, Tsuyoshi Abe, Jun Miyake
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Patent number: 7558827Abstract: When an alias mail having an alias address X as a destination is received from an originator terminal, an alias mail relay server restores a recipient address R and an alias address generation argument C, generates a reply destination address Y including the generation argument C restores and an originator address S, and replaces the destination and a transmission source with the recipient address R and Y to transfer the alias mail to a recipient terminal. On the other hand, when a reply mail is received from the recipient terminal, a remailer restored the originator address S and the generation argument C from Y, regenerates X from the generation argument C restored and the recipient address R, and replaces a destination and a transmission source with the originator address S and X to transfer the reply mail to the originator terminal.Type: GrantFiled: October 14, 2004Date of Patent: July 7, 2009Assignee: Nippon Telegraph and Telephone CorporationInventors: Masahisa Kawashima, Jun Miyake, Tsuyoshi Abe, Katsumi Takahashi
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Patent number: 7386574Abstract: A file transfer system including a relay apparatus is provided in which the relay apparatus includes: an incoming file sending part 15 which receives a file identifier I and a downloaded data amount O_R from a receive apparatus 50; and a file storing part 13 which stores the file identifier and file data and passes file data according to the file identifier and the downloaded data amount to the incoming file sending part. The file data F(O_R) is sent to the receive apparatus.Type: GrantFiled: August 30, 2001Date of Patent: June 10, 2008Assignee: Nippon Telegraph and Telephone CorporationInventors: Tsuyoshi Abe, Masahisa Kawashima
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Publication number: 20070011245Abstract: When an alias mail having an alias address X as a destination is received from an originator terminal, an alias mail relay server restores a recipient address R and an alias address generation argument C, generates a reply destination address Y including the generation argument C restores and an originator address S, and replaces the destination and a transmission source with the recipient address R and Y to transfer the alias mail to a recipient terminal. On the other hand, when a reply mail is received from the recipient terminal, a remailer restored the originator address S and the generation argument C from Y, regenerates X from the generation argument C restored and the recipient address R, and replaces a destination and a transmission source with the originator address S and X to transfer the reply mail to the originator terminal.Type: ApplicationFiled: October 14, 2004Publication date: January 11, 2007Applicant: Nippon telegraph and telephone corp.Inventors: Masahisa Kawashima, Jun Miyake, Tsuyoshi Abe, Katsumi Takahashi
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Publication number: 20060129629Abstract: A recipient identifier and communication condition information stored in a recipient-identifier storing unit are encrypted by an identifier-for-disclosure creating unit of a recipient terminal to create an identifier-for-disclosure. An identifier-for-disclosure notifying unit notifies a sender terminal of the identifier-for-disclosure. When a communication request using the identifier-for-disclosure is sent from the recipient terminal, a restoring unit of a relay system extracts the communication condition information from the identifier-for-disclosure. Only when communication conditions included in the communication condition information are satisfied, communication between the recipient terminal and the sender terminal is established.Type: ApplicationFiled: December 19, 2003Publication date: June 15, 2006Applicant: Nippon Telegraph and Telephone CorporationInventors: Masahisa Kawashima, Fumitaka Hoshino, Akiko Fujimura, Shingo Kinoshita, Masayoshi Nakao, Noriaki Saito, Yukio Tsuruoka, Katsumi Takahashi, Tsuyoshi Abe, Jun Miyake
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Publication number: 20030187852Abstract: A file transfer system including a relay apparatus is provided in which the relay apparatus includes: an incoming file sending part 15 which receives a file identifier I and a downloaded data amount O_R from a receive apparatus 50; and a file storing part 13 which stores the file identifier and file data and passes file data according to the file identifier and the downloaded data amount to the incoming file sending part. The file data F(O_R) is sent to the receive apparatus.Type: ApplicationFiled: February 26, 2003Publication date: October 2, 2003Inventors: Tsuyoshi Abe, Masahisa Kawashima