Patents by Inventor Ikuko Sakai

Ikuko Sakai 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: 11775627
    Abstract: The device outputs, to a display device, display information on a symbol which is to be moved and displayed; acquires a face image of a subject which has been captured by an image capturing device at a capturing timing while the display device displays the symbol; detects, from the face image, a line-of-sight position; determines that the subject of the face image is a living body when one or more prescribed conditions including a case in which the line-of-sight position matches a display position of the symbol at the image-capturing timing are all satisfied; and outputs an authentication result indicating success of the authentication when the subject is determined to be a living body and the biometric authentication is successful, and outputs an authentication result indicating failure of the authentication when the subject is determined not to be a living body or when the biometric authentication fails.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: October 3, 2023
    Assignee: NEC CORPORATION
    Inventor: Ikuko Sakai
  • Publication number: 20230118331
    Abstract: The device outputs, to a display device, display information on a symbol which is to be moved and displayed; acquires a face image of a subject which has been captured by an image capturing device at a capturing timing while the display device displays the symbol; detects, from the face image, a line-of-sight position; determines that the subject of the face image is a living body when one or more prescribed conditions including a case in which the line-of-sight position matches a display position of the symbol at the image-capturing timing are all satisfied; and outputs an authentication result indicating success of the authentication when the subject is determined to be a living body and the biometric authentication is successful, and outputs an authentication result indicating failure of the authentication when the subject is determined not to be a living body or when the biometric authentication fails.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Applicant: NEC Corporation
    Inventor: Ikuko SAKAI
  • Patent number: 11550890
    Abstract: The device outputs, to a display device, display information on a symbol which is to be moved and displayed; acquires a face image of a subject which has been captured by an image capturing device at a capturing timing while the display device displays the symbol; detects, from the face image, a line-of-sight position; determines that the subject of the face image is a living body when one or more prescribed conditions including a case in which the line-of-sight position matches a display position of the symbol at the image-capturing timing are all satisfied; and outputs an authentication result indicating success of the authentication when the subject is determined to be a living body and the biometric authentication is successful, and outputs an authentication result indicating failure of the authentication when the subject is determined not to be a living body or when the biometric authentication fails.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 10, 2023
    Assignee: NEC CORPORATION
    Inventor: Ikuko Sakai
  • Publication number: 20210073364
    Abstract: The device outputs, to a display device, display information on a symbol which is to be moved and displayed; acquires a face image of a subject which has been captured by an image capturing device at a capturing timing while the display device displays the symbol; detects, from the face image, a line-of-sight position; determines that the subject of the face image is a living body when one or more prescribed conditions including a case in which the line-of-sight position matches a display position of the symbol at the image-capturing timing are all satisfied; and outputs an authentication result indicating success of the authentication when the subject is determined to be a living body and the biometric authentication is successful, and outputs an authentication result indicating failure of the authentication when the subject is determined not to be a living body or when the biometric authentication fails.
    Type: Application
    Filed: January 31, 2019
    Publication date: March 11, 2021
    Applicant: NEC Corporation
    Inventor: Ikuko SAKAI
  • Patent number: 7874979
    Abstract: When an observation target in a membranous tissue such as an amniotic membrane filled with a liquid such as an amniotic fluid is observed, the observation is performed without leaking the liquid. There is provided an observation method of an observation target arranged in a membranous tissue filled with a body fluid, comprising: a step for coating a gel-like adhesive on the outer surface of the membranous tissue; a step for cutting the membranous tissue through the coated adhesive; a step for inserting the distal end of the objective unit through the adhesive and the open cut in the membranous tissue; and a step for observing the observation target through the inserted distal end of the objective unit.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: January 25, 2011
    Assignee: Olympus Corporation
    Inventor: Ikuko Sakai
  • Patent number: 7864413
    Abstract: An examination apparatus that observes a specimen in a stationary state while suppressing the blurring caused by a control delay. The apparatus includes a first optical system and a second optical system for imaging light produced in a specimen, a first image-acquisition unit with a plurality of first image-acquisition devices for detecting an image formed by the first optical system, a second image-acquisition unit with a second image-acquisition device for acquiring an image formed by the second optical system, and a driving unit that causes the images to be formed at the same position in the second image-acquisition unit. The value obtained by dividing the pixel size Y of the first image-acquisition devices by the magnification X of the first optical system is smaller than the value obtained by dividing the pixel size Y? of the second image-acquisition device by the magnification X? of the second optical system.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: January 4, 2011
    Assignee: Olympus Corporation
    Inventors: Yoshihisa Tanikawa, Tomoaki Sato, Ikuko Sakai
  • Patent number: 7787178
    Abstract: Without setting an examination site, it is possible to easily position an end face of a narrow-diameter end portion at a suitable position with respect to an examination target, allowing an image of the examination site to be acquired quickly and easily. The invention provides an objective-lens guiding device comprising a support portion secured to an objective lens having a narrow-diameter end portion; and a cylindrical portion for accommodating the narrow-diameter end portion. The support portion supports the cylindrical portion such that a front end of the cylindrical portion is disposed at a location farther toward the front than an end face of the narrow-diameter end portion, and so as to be capable of moving in an optical axis direction.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: August 31, 2010
    Assignee: Olympus Corporation
    Inventors: Yasuaki Natori, Masato Fujiwara, Nobuhiko Onda, Tatsuya Okadome, Ikuko Sakai
  • Publication number: 20080049309
    Abstract: The invention provides an examination apparatus that is capable of observing a specimen in a stationary state while suppressing blurring caused by a control delay. The examination apparatus includes a first optical system and a second optical system for imaging light produced in a specimen, a first image-acquisition unit provided with a plurality of first image-acquisition devices for detecting an image formed by the first optical system, a second image-acquisition unit provided with a second image-acquisition device for acquiring an image formed by the second optical system, and a driving unit configured to cause the images to be formed at substantially the same position in the second image-acquisition unit based on a detection signal of the first image-acquisition unit.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 28, 2008
    Applicant: OLYMPUS CORPORATION
    Inventors: Yoshihisa TANIKAWA, Tomoaki SATO, Ikuko SAKAI
  • Publication number: 20080051666
    Abstract: Without setting an examination site, it is possible to easily position an end face of a narrow-diameter end portion at a suitable position with respect to an examination target, allowing an image of the examination site to be acquired quickly and easily. The invention provides an objective-lens guiding device comprising a support portion secured to an objective lens having a narrow-diameter end portion; and a cylindrical portion for accommodating the narrow-diameter end portion. The support portion supports the cylindrical portion such that a front end of the cylindrical portion is disposed at a location farther toward the front than an end face of the narrow-diameter end portion, and so as to be capable of moving in an optical axis direction.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 28, 2008
    Inventors: Yasuaki Natori, Masato Fujiwara, Nobuhiko Onda, Tatsuya Okadome, Ikuko Sakai
  • Publication number: 20070238965
    Abstract: When an observation target in a membranous tissue such as an amniotic membrane filled with a liquid such as an amniotic fluid is observed, the observation is performed without leaking the liquid. There is provided an observation method of an observation target arranged in a membranous tissue filled with a body fluid, comprising: a step for coating a gel-like adhesive on the outer surface of the membranous tissue; a step for cutting the membranous tissue through the coated adhesive; a step for inserting the distal end of the objective unit through the adhesive and the open cut in the membranous tissue; and a step for observing the observation target through the inserted distal end of the objective unit.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 11, 2007
    Applicant: OLYMPUS CORPORATION
    Inventor: Ikuko Sakai