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).
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Patent number: 11775627Abstract: 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: GrantFiled: December 16, 2022Date of Patent: October 3, 2023Assignee: NEC CORPORATIONInventor: Ikuko Sakai
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Publication number: 20230118331Abstract: 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: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: NEC CorporationInventor: Ikuko SAKAI
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Patent number: 11550890Abstract: 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: GrantFiled: January 31, 2019Date of Patent: January 10, 2023Assignee: NEC CORPORATIONInventor: Ikuko Sakai
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Publication number: 20210073364Abstract: 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: ApplicationFiled: January 31, 2019Publication date: March 11, 2021Applicant: NEC CorporationInventor: Ikuko SAKAI
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Patent number: 7874979Abstract: 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: GrantFiled: March 29, 2007Date of Patent: January 25, 2011Assignee: Olympus CorporationInventor: Ikuko Sakai
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Patent number: 7864413Abstract: 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: GrantFiled: August 17, 2007Date of Patent: January 4, 2011Assignee: Olympus CorporationInventors: Yoshihisa Tanikawa, Tomoaki Sato, Ikuko Sakai
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Patent number: 7787178Abstract: 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: GrantFiled: August 20, 2007Date of Patent: August 31, 2010Assignee: Olympus CorporationInventors: Yasuaki Natori, Masato Fujiwara, Nobuhiko Onda, Tatsuya Okadome, Ikuko Sakai
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Publication number: 20080049309Abstract: 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: ApplicationFiled: August 17, 2007Publication date: February 28, 2008Applicant: OLYMPUS CORPORATIONInventors: Yoshihisa TANIKAWA, Tomoaki SATO, Ikuko SAKAI
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Publication number: 20080051666Abstract: 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: ApplicationFiled: August 20, 2007Publication date: February 28, 2008Inventors: Yasuaki Natori, Masato Fujiwara, Nobuhiko Onda, Tatsuya Okadome, Ikuko Sakai
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Publication number: 20070238965Abstract: 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: ApplicationFiled: March 29, 2007Publication date: October 11, 2007Applicant: OLYMPUS CORPORATIONInventor: Ikuko Sakai