Patents by Inventor Yukiko Endo

Yukiko Endo 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).

  • Patent number: 10083800
    Abstract: First, the present invention involves adding a curing catalyst to a phenolic resin, polyvinyl alcohol, a pore-forming agent, and a cross-linking agent, and mixing, casting, heating, and drying the same. Next, the plate-shaped porous phenolic resin obtained thereby which has uniform consecutive macropores having an average pore diameter in the range of 3 to 35 ?m and formed in a three-dimensional network pattern is immersed with an organic solvent. Thereafter, this block is extracted and pressure is applied thereto. It is possible to obtain plate-shaped activated carbon for use in an electrode of a power-storage device by carbonizing and activating a block which has undergone this procedure by keeping the same at an increased temperature.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: September 25, 2018
    Assignees: AION CO., LTD., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Hidehiko Tsukada, Kimiyasu Onda, Hiroshi Miyaji, Soshi Shiraishi, Yukiko Endo
  • Patent number: 10049824
    Abstract: An activated carbon for an electrode of a power storage device of the present invention has uniform consecutive macropores, and a pore size distribution centered within a range of 1.5 to 25 ?m, a specific surface area within a range of 1,500 to 2,300 m2/g, a micropore volume within a range of 0.4 to 1.0 mL/g, and an average micropore width within a range of 0.7 to 1.2 nm. Provided is an activated carbon for an electrode of a power storage device suitable for an electric double layer capacitor that has high capacitance during charging and discharging at high current density and excellent endurance against charging at a high voltage of 3 V or more and a lithium-ion capacitor having excellent endurance against charging at a high voltage of 4 V or more.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: August 14, 2018
    Assignees: AION CO., LTD, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Hidehiko Tsukada, Kimiyasu Onda, Hiroshi Miyaji, Soshi Shiraishi, Yukiko Endo
  • Publication number: 20160225537
    Abstract: First, the present invention involves adding a curing catalyst to a phenolic resin, polyvinyl alcohol, a pore-forming agent, and a cross-linking agent, and mixing, casting, heating, and drying the same. Next, the plate-shaped porous phenolic resin obtained thereby which has uniform consecutive macropores having an average pore diameter in the range of 3 to 35 ?m and formed in a three-dimensional network pattern is immersed with an organic solvent. Thereafter, this block is extracted and pressure is applied thereto. It is possible to obtain plate-shaped activated carbon for use in an electrode of a power-storage device by carbonizing and activating a block which has undergone this procedure by keeping the same at an increased temperature.
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Applicants: AION CO., LTD., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Hidehiko TSUKADA, Kimiyasu ONDA, Hiroshi MIYAJI, Soshi SHIRAISHI, Yukiko ENDO
  • Patent number: 9032487
    Abstract: A method and system for providing service access to a user, includes the steps of: a) Registering a local identity provider located in al local network at a global identity provider with a local identifier of the local identity provider, b) Requesting service access requiring identity authentication to a service provider by a user located in the local network, c) Requesting an identity management service from the global identity provider by the service provider, d) Redirecting the user's access request to the local identity provider according to the provided local identifier within the local network, e) Checking if the local identifier corresponds to the local network of the user, f) Providing the requested identity management service to the service provider by the global identity provider in accordance with a result of the checking according to step e), and g) Granting service access for the user to the service provider.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: May 12, 2015
    Assignee: NEC Europe Ltd.
    Inventors: Marcus Kuhnen, Joao Girao, Yukiko Endo
  • Publication number: 20150049415
    Abstract: An activated carbon for an electrode of a power storage device of the present invention has uniform consecutive macropores, and a pore size distribution centered within a range of 1.5 to 25 ?m, a specific surface area within a range of 1,500 to 2,300 m2/g, a micropore volume within a range of 0.4 to 1.0 mL/g, and an average micropore width within a range of 0.7 to 1.2 nm. Provided is an activated carbon for an electrode of a power storage device suitable for an electric double layer capacitor that has high capacitance during charging and discharging at high current density and excellent endurance against charging at a high voltage of 3 V or more and a lithium-ion capacitor having excellent endurance against charging at a high voltage of 4 V or more.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 19, 2015
    Inventors: Hidehiko Tsukada, Kimiyasu Onda, Hiroshi Miyaji, Soshi Shiraishi, Yukiko Endo
  • Publication number: 20130219474
    Abstract: A method and system for providing service access to a user, includes the steps of: a) Registering a local identity provider located in al local network at a global identity provider with a local identifier of the local identity provider, b) Requesting service access requiring identity authentication to a service provider by a user located in the local network, c) Requesting an identity management service from the global identity provider by the service provider, d) Redirecting the user's access request to the local identity provider according to the provided local identifier within the local network, e) Checking if the local identifier corresponds to the local network of the user, f) Providing the requested identity management service to the service provider by the global identity provider in accordance with a result of the checking according to step e), and g) Granting service access for the user to the service provider.
    Type: Application
    Filed: November 11, 2011
    Publication date: August 22, 2013
    Applicant: NEC EUROPE LTD.
    Inventors: Marcus Kuhnen, Joao Girao, Yukiko Endo
  • Patent number: 8239684
    Abstract: A management server calculates a hash value of software for providing a service, generates a first software area from software which is provided a second electronic signature, provides a third electronic signature to user information provided with a first electronic signature transmitted from a terminal, to the hash value, and to user management information, encrypts a second software area generated from the third electronic signature, user information, from hash value, and from user management information using a common key of the management server and service providing server, combines the first software area and encrypted second software area to create a software IC card, encrypts the software IC card using a public key of the terminal, and transmits the encrypted software IC card to the terminal.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: August 7, 2012
    Assignee: NEC Corporation
    Inventors: Shigeyoshi Shima, Yukiko Endo
  • Publication number: 20100070769
    Abstract: In a log acquisition system comprising a log collection terminal for collecting log data and a log acquisition terminal for acquiring the log data collected by the log collection terminal from the log collection terminal, the log collection terminal stores a common key between the log collection terminal and the log acquisition terminal in a hardware security module inherently mounted in the log collection terminal, encrypts the collected log data as encrypted log data using the stored common key, and stores the encrypted log data, and the log acquisition terminal stores the common key in a hardware security module inherently mounted in the log acquisition terminal, acquires the encrypted log data from the log collection terminal, and decrypts the acquired encrypted log data with the common key.
    Type: Application
    Filed: January 22, 2008
    Publication date: March 18, 2010
    Inventors: Shigeyoshi Shima, Yukiko Endo
  • Publication number: 20100031049
    Abstract: In a time information distribution system for distributing time information from a time distributing station to terminals, the time distributing station gives the electronic signature of the time distributing station to time information to be distributed and distributes the time information to which the electronic signature has been appended to the terminals. The terminals verify the electronic signature given to the time information distributed from the time distributing station and, if a determination has been made that the electronic signature has already been given by the time distributing station, store the time information to which the electronic signature is given in a hardware security module installed in the terminals.
    Type: Application
    Filed: January 22, 2008
    Publication date: February 4, 2010
    Inventors: Shigeyoshi Shima, Yukiko Endo