Patents by Inventor Takahito Yoshizawa

Takahito Yoshizawa 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).

  • Publication number: 20210144135
    Abstract: The present disclosure relates to authentication methods supported by the User Equipment (UE) to the core network and authentication method (selected by the core network) to the UE. These can be used for negotiating any primary or secondary (or any) authentication method and are applicable when multiple authentication methods are supported at the UE and the network (authentication server). Further, the present disclosure also offers security solution to prevent modification or tampering of the parameters in the mechanisms in order to prevent attacks such as bidding-down, Denial of Service (DoS) and Man-In-The-Middle (MITM).
    Type: Application
    Filed: April 2, 2019
    Publication date: May 13, 2021
    Applicant: NEC CORPORATION
    Inventors: Anand Raghawa PRASAD, Sivakamy LAKSHMINARAYANAN, Sheeba Backia Mary BASKARAN, Sivabalan ARUMUGAM, Hironori ITO, Takahito YOSHIZAWA
  • Publication number: 20210144550
    Abstract: The present document proposes security procedures for 3GPP Common API Framework (CAPIF) to solve various security issues that can occur during various phases such as, (i) API invoker Onboarding, (ii) API invoker Offboarding, (iii) Service API publishing, (iv) Service API unpublishing, (v) Update service APIs, (vi) Service API discovery, (vii) API invoker obtaining authorization from CAPIF core function (CCF) to access service API, (viii) Authentication between API invoker and API exposing function (AEF) upon the service invocation, (ix) Retrieve service APIs, (x) CAPIF event subscription, (xi) CAPIF event unsubscription, and (xii) API invoker authorization to access service APIs.
    Type: Application
    Filed: April 3, 2019
    Publication date: May 13, 2021
    Applicant: NEC CORPORATION
    Inventors: Hironori ITO, Anand Raghawa PRASAD, Takahito YOSHIZAWA, Sheeba Backia Mary BASKARAN, Sivabalan ARUMUGAM, Sivakamy LAKSHMINARAYANAN
  • Patent number: 10976641
    Abstract: A blade driving device includes an opening forming member, and a plurality of groups of blades that are pivotably disposed in a ring form around an opening portion of the opening forming member. The plurality of groups of blades include a first group of blades and a second group of blades, in a process of changing from a first circular light passage opening formed by the first group to a second circular light passage opening formed by the second group, the first group that is adjacent to the second group and has finished forming the first circular light passage opening remains in the opening portion, thereby acting to substantially suppressing warp, in an optical axis direction, of the second group that forms the second circular light passage opening on an inner side thereof.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 13, 2021
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Mitsuo Shibata
  • Publication number: 20210051482
    Abstract: A method for integrity protection scheme by a mobile communication device or a core network entity according to a first exemplary aspect of the present disclosure includes configuring settings and parameters for integrity protection for user data with another party; receiving user plane data from the other party, calculating Message Authentication Code for Integrity (MAC-I) for a part of the data and checking integrity of the part of the data.
    Type: Application
    Filed: February 6, 2019
    Publication date: February 18, 2021
    Applicant: NEC Corporation
    Inventors: Hironori ITO, Anand Raghawa PRASAD, Sivabalan ARUMUGAM, Takahito YOSHIZAWA, Sivakamy LAKSHMINARAYANAN, Sheeba Backia Mary BASKARAN
  • Patent number: 10884316
    Abstract: A light amount adjusting device includes an opening forming member configured to form an opening portion through which light passes, a blade group configured to move on the opening forming member and form a part of a light passing opening in the opening portion, and a power transmission member arranged outside the opening portion and engaging with the blade group to transmit power. The blade group includes a straight blade configured to move linearly and a swing blade configured to swing from both sides in a straight-ahead operation of the straight blade toward a center of the light passing opening. An edge portion of the light passing opening on a side of the power transmission member or an edge portion on a side opposite to the side of the power transmission member is formed by the blade group.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: January 5, 2021
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Hironori Komiya
  • Publication number: 20200344601
    Abstract: A communication terminal (10) includes control means for generating a subscription concealed identifier (SUCI) including a subscription permanent identifier (SUPI) concealed using a predetermined protection scheme, and a protection scheme identifier identifying the protection scheme, and transmission means for sending the SUCI to a first network apparatus during a registration procedure, the SUCI being sent for a second network apparatus to de-conceal the SUPI from the SUCI based on the protection scheme used to generate the SUCI.
    Type: Application
    Filed: January 9, 2019
    Publication date: October 29, 2020
    Applicant: NEC CORPORATION
    Inventors: Sheeba Backia Mary BASKARAN, Sivakamy LAKSHMINARAYANAN, Anand Raghawa PRASAD, Sivabalan ARUMUGAM, Hironori ITO, Takahito YOSHIZAWA
  • Patent number: 10757610
    Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 25, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Takahito Yoshizawa, Indermeet Singh Gandhi, Swaminathan A. Anantha, Yuyong Zhang
  • Patent number: 10649309
    Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: May 12, 2020
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Yusuke Inui, Yasutaka Morikoshi, Shinya Nakawaki, Satoru Yajima, Yoshiyuki Koyama
  • Publication number: 20190274011
    Abstract: A method, performed by a multi-cell/multicast coordination entity (MCE) in a communication system in which a plurality of member user equipments (UEs) can engage in group communication, includes obtaining information about a supported multimedia broadcast/multicast service (MBMS) mechanism of a member UE of the plurality of member UEs. The obtained information is used to select a multimedia broadcast/multicast service (MBMS) mechanism for a base station (eNB). The selected MBMS mechanism is notified to an application server.
    Type: Application
    Filed: September 29, 2017
    Publication date: September 5, 2019
    Inventors: Takahito Yoshizawa, Genadi Velev, Andreas Kunz
  • Publication number: 20190137845
    Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Inventors: Takahito Yoshizawa, Yusuke Inui, Yasutaka Morikoshi, Shinya Nakawaki, Satoru Yajima, Yoshiyuki Koyama
  • Patent number: 10209605
    Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 19, 2019
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Yusuke Inui, Yasutaka Morikoshi, Shinya Nakawaki, Satoru Yajima, Yoshiyuki Koyama
  • Publication number: 20190018304
    Abstract: A light amount adjusting device includes an opening forming member configured to form an opening portion through which light passes, a blade group configured to move on the opening forming member and form a part of a light passing opening in the opening portion, and a power transmission member arranged outside the opening portion and engaging with the blade group to transmit power. The blade group includes a straight blade configured to move linearly and a swing blade configured to swing from both sides in a straight-ahead operation of the straight blade toward a center of the light passing opening. An edge portion of the light passing opening on a side of the power transmission member or an edge portion on a side opposite to the side of the power transmission member is formed by the blade group.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Takahito Yoshizawa, Hironori Komiya
  • Publication number: 20180352484
    Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Inventors: Takahito YOSHIZAWA, Indermeet Singh GANDHI, Swaminathan A. ANANTHA, Yuyong ZHANG
  • Patent number: 10104582
    Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: October 16, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Takahito Yoshizawa, Indermeet Singh Gandhi, Swaminathan A. Anantha, Yuyong Zhang
  • Publication number: 20180263010
    Abstract: The present invention concerns a femtocell device (1) and method at a femtocell device (1) comprising a first interface (23) for communicating to a macrocell (4) and a second interface (25) for communicating to a broadband network (2), the method comprising the steps of, when communication to the broadband network (2) is inactive, receiving a paging message from the macrocell (4) destined to a mobile device (3) connected to the femtocell device (1), and notifying the mobile device (3) to redirect to the macrocell (4).
    Type: Application
    Filed: May 9, 2018
    Publication date: September 13, 2018
    Applicant: Thomson Licensing
    Inventor: Takahito Yoshizawa
  • Patent number: 10039095
    Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 31, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Takahito Yoshizawa, Raymond Kwan
  • Publication number: 20180180971
    Abstract: A blade driving device includes an opening forming member, and a plurality of groups of blades that are pivotably disposed in a ring form around an opening portion of the opening forming member. The plurality of groups of blades include a first group of blades and a second group of blades, in a process of changing from a first circular light passage opening formed by the first group to a second circular light passage opening formed by the second group, the first group that is adjacent to the second group and has finished forming the first circular light passage opening remains in the opening portion, thereby acting to substantially suppressing warp, in an optical axis direction, of the second group that forms the second circular light passage opening on an inner side thereof.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 28, 2018
    Inventors: Takahito Yoshizawa, Mitsuo Shibata
  • Publication number: 20180074387
    Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 15, 2018
    Inventors: Takahito Yoshizawa, Yusuke Inui, Yasutaka Morikoshi, Shinya Nakawaki, Satoru Yajima, Yoshiyuki Koyama
  • Patent number: 9844021
    Abstract: The present invention concerns a femtocell device and method at a femtocell device comprising a first interface for communicating to a macrocell and a second interface for communicating to a broadband network, the method comprising the steps of, when communication to the broadband network is inactive, receiving a paging message from the macrocell destined to a mobile device connected to the femtocell device, and notifying the mobile device to redirect to the macrocell.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: December 12, 2017
    Assignee: Thomson Licensing
    Inventor: Takahito Yoshizawa
  • Patent number: D826307
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: August 21, 2018
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Mitsuo Shibata