Patents by Inventor Akio Nagasaka

Akio Nagasaka 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: 11113493
    Abstract: It is provided a biometric authentication system, which is configured to execute authentication by using registered biometric information, the biometric authentication system comprising: a light source unit configured to irradiate a living body with light; an image pickup unit configured to photograph a vessel image with light radiated from the light source unit and transmitted through the living body; a control unit configured to generate authentication biometric information from the vessel image photographed by the image pickup unit; a category selection unit configured to select a category that corresponds to the authentication biometric information, based on supplementary information including information that has been obtained about a position and posture of the living body at timing of photographing the vessel image; and an authentication unit configured to execute authentication processing by comparing registered biometric information of the selected category and the authentication biometric informatio
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: September 7, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Matsuda, Yo Nonomura, Naoto Miura, Keiichiro Nakazaki, Akio Nagasaka, Takafumi Miyatake
  • Publication number: 20200356751
    Abstract: It is provided a biometric authentication system, which is configured to execute authentication by using registered biometric information, the biometric authentication system comprising: a light source unit configured to irradiate a living body with light; an image pickup unit configured to photograph a vessel image with light radiated from the light source unit and transmitted through the living body; a control unit configured to generate authentication biometric information from the vessel image photographed by the image pickup unit; a category selection unit configured to select a category that corresponds to the authentication biometric information, based on supplementary information including information that has been obtained about a position and posture of the living body at timing of photographing the vessel image; and an authentication unit configured to execute authentication processing by comparing registered biometric information of the selected category and the authentication biometric informatio
    Type: Application
    Filed: September 11, 2018
    Publication date: November 12, 2020
    Inventors: Yusuke MATSUDA, Yo NONOMURA, Naoto MIURA, Keiichiro NAKAZAKI, Akio NAGASAKA, Takafumi MIYATAKE
  • Patent number: 10460187
    Abstract: A biometric authentication device including a housing, a light source unit that is installed on an upper surface of the housing and includes a light source, and an opening that is provided in the upper surface of the housing and located below the light source, and an imaging unit that is disposed inside the housing is disclosed. In the device, an optical axis of the light source intersects with a longitudinal direction of the housing, and the imaging unit images a user's biometric feature irradiated with an irradiation light from the light source through the opening.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 29, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Oda, Akira Omachi, Yoshihiro Iwama, Yusuke Daimon, Daisuke Matsubara, Hiroko Hasebe, Akio Nagasaka, Yusuke Matsuda, Naoto Miura
  • Patent number: 10264998
    Abstract: In the conventional art, there has been a problem that it is difficult to perform, with a high usability and at a high precision, authentication that accepts a wide range of variation of showing attitude of a hand or a finger and ensures obtaining a clear blood-vessel image of a finger. Provided is a blood-vessel image capturing apparatus including an opening portion formed in a surface of a housing, plural light sources disposed beside the opening portion and arranged in a lattice pattern, a sensor configured to obtain position information of a hand shown above the opening portion, a light amount control portion configured to select an irradiation light source to irradiate the hand from the plural light sources on a basis of the position information and control a light amount of the irradiation light source, and an image capturing portion configured to capture an image of a blood vessel included in a finger portion of the hand irradiated with light from the irradiation light source.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: April 23, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Matsuda, Naoto Miura, Akio Nagasaka, Takafumi Miyatake
  • Publication number: 20180247142
    Abstract: A biometric authentication device including a housing, a light source unit that is installed on an upper surface of the housing and includes a light source, and an opening that is provided in the upper surface of the housing and located below the light source, and an imaging unit that is disposed inside the housing is disclosed. In the device, an optical axis of the light source intersects with a longitudinal direction of the housing, and the imaging unit images a user's biometric feature irradiated with an irradiation light from the light source through the opening.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 30, 2018
    Inventors: Masaru ODA, Akira OMACHI, Yoshihiro IWAMA, Yusuke DAIMON, Daisuke MATSUBARA, Hiroko HASEBE, Akio NAGASAKA, Yusuke MATSUDA, Naoto MIURA
  • Publication number: 20170325721
    Abstract: In the conventional art, there has been a problem that it is difficult to perform, with a high usability and at a high precision, authentication that accepts a wide range of variation of showing attitude of a hand or a finger and ensures obtaining a clear blood-vessel image of a finger. Provided is a blood-vessel image capturing apparatus including an opening portion formed in a surface of a housing, plural light sources disposed beside the opening portion and arranged in a lattice pattern, a sensor configured to obtain position information of a hand shown above the opening portion, a light amount control portion configured to select an irradiation light source to irradiate the hand from the plural light sources on a basis of the position information and control a light amount of the irradiation light source, and an image capturing portion configured to capture an image of a blood vessel included in a finger portion of the hand irradiated with light from the irradiation light source.
    Type: Application
    Filed: November 28, 2014
    Publication date: November 16, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Yusuke MATSUDA, Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE
  • Patent number: 9342730
    Abstract: An identification apparatus keeps the conditions for imaging uniform among successive identifications, and requires a user to perform only a series of simple maneuvers. The apparatus comprises a guide member, a light source, and an imaging unit. The guide member includes a pattern or structure for a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member is located in the guide member where a fingertip is positioned. An optical opening is formed at a position coincident with where a finger to be imaged should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images. The apparatus may also include dual light sources power saving functionality, and means for limiting the interference of external light sources.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 17, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono
  • Patent number: 9292727
    Abstract: A blood vessel image taking device including a finger presentation area configured at a surface of a cabinet, plural light sources arranged at the finger presentation area for irradiating a presented finger with a light ray, a light quantity controlling unit for controlling light quantities of the plural light sources, an opening portion configured at the finger presentation area, and an image taking unit for taking an image of the light ray from the light source portion passing through the opening portion and irradiated to the finger, in which portions of the finger presentation area are a tip end presentation area for presenting a tip end side of the finger, and a root presentation area for presenting a root side of the finger.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: March 22, 2016
    Assignee: HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.
    Inventors: Harumi Kiyomizu, Naoto Miura, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
  • Publication number: 20150379254
    Abstract: The purpose of the present invention is to provide a highly accurate authentication system in a biometric authentication system. The authentication system includes: a measurement device that acquires biometric modality information from a living body of a first user; an input unit that generates at least one item of input information from the biometric modality information; a storage device that stores first feature information acquired from the biometric modality information of the first user, and second feature information acquired based on a correlation between the biometric modality information of the first user and biometric modality information of a second user; and an authentication unit that authenticates the first user by collating the input information with the first feature information and collating the input information with the second feature information.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 31, 2015
    Inventors: Yusuke MATSUDA, Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE
  • Publication number: 20150324566
    Abstract: An authentication device that authenticates an individual by using features of a biological object includes an input device 2 to place the biological object thereon, a plurality of image capture devices 9 that capture the biological object, an authentication processing unit 10 that processes images captured by the plurality of image capture devices, a plurality of light sources 3 to capture the features of the biological object and the biological object, and a storage device 14 that stores first feature data registered in advance.
    Type: Application
    Filed: August 28, 2012
    Publication date: November 12, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Naoto MIURA, Harumi KIYOMIZU, Akio NAGASAKA, Takafumi MIYATAKE, Yusuke MATSUDA
  • Patent number: 9171233
    Abstract: Provided is a small-sized, flat, vein authentication device of high authentication accuracy by photographing a living body several times and thus obtaining as registration data plural images that are picked up at different positions. A biometric information processing device of this invention comprising an image pickup device, which picks up a vein image, an image computing unit, which processes the vein image picked up by the image pickup device, an interface on which a part of a living body to be picked up is placed, and a light source, which emits infrared light. The biometric information processing device is further comprised of a sensor unit, which detects the presence or absence of a subject picked up by the image pickup device, a unit to obtain plural images as registration data, and a unit to select optimum registration data out of images obtained as registration data.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: October 27, 2015
    Assignee: HITACHI, LTD.
    Inventors: Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Harumi Kiyomizu
  • Patent number: 9141843
    Abstract: A compact authentication device that prevents user from feeling pressure and is strong against external light, when capturing an image of a finger blood vessel pattern with transmitted light. The device includes a guidance part for determining the finger position, a light source disposed on at least one side of the guidance part to emit light to be transmitted though the finger, an image capture part for capturing the transmitted light, a shading unit for limiting an irradiation region of the light, a finger thickness measuring unit, a unit for controlling a light amount of the light source based on a result of the measurement, a unit for recording registered image patterns of the finger, a unit for collating a captured image pattern from the image capture part with the registered patterns, and a unit for controlling different processing according to the collation result.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 22, 2015
    Assignee: HITACHI, LTD.
    Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yuichi Kashimura
  • Patent number: 9076027
    Abstract: It is provided an authentication system comprising: an input device; an image pickup device for picking up an image of the living body; an image processing unit for processing the image picked up by the image pickup device; a storage device for storing a plurality of pieces of first feature data and a plurality of pieces of second feature data; and a matching processing unit for checking input data, which indicates features of a living body picked up by the image pickup device, against each of the plurality of pieces of first feature data and each of the plurality of pieces of second feature data. Each of the plurality of pieces of second feature data is data that is smaller in size than each of the plurality of pieces of first feature data and that includes at least a part of the features of the living body.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: July 7, 2015
    Assignee: HITACHI INDUSTRY & CONTROL COLUTIONS, LTD.
    Inventors: Naoto Miura, Harumi Kiyomizu, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
  • Patent number: 8908930
    Abstract: A primary object of the present invention is to extract a difference in shading of a blood vessel image in a picked up image as information to be used for authentication, and to acquire a larger number of pieces of biometric information from one image. An individual authentication device to be used to authenticate an individual using feature information of a vascular pattern acquired from a living body includes an imaging unit that images a region of the living body serving as an object of authentication, and an arithmetic unit that acquires the picked up image as an authentication image. The arithmetic unit extracts a vascular pattern from the authentication image, and acquires a degree of shading of the vascular pattern as the feature information.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: December 9, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yusuke Matsuda, Akio Nagasaka, Naoto Miura, Harumi Kiyomizu, Takafumi Miyatake
  • Patent number: 8855376
    Abstract: The invention provides a finger vein authentication device using plural fingers that enables the plural fingers to be easily presented while maintaining high authentication precision. A finger vein authentication device according to an embodiment of the invention includes light sources that irradiate light onto fingers; imaging elements that photograph light transmitted through the fingers; and an image processing unit that processes the obtained images. The finger vein authentication device further includes a finger placement table that defines a presentation location of the first finger in an anteroposterior direction and other finger placement tables that define locations of all the fingers in a horizontal direction.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: October 7, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Harumi Kiyomizu
  • Publication number: 20140286541
    Abstract: A blood vessel image taking device including a finger presentation area configured at a surface of a cabinet, plural light sources arranged at the finger presentation area for irradiating a presented finger with a light ray, a light quantity controlling unit for controlling light quantities of the plural light sources, an opening portion configured at the finger presentation area, and an image taking unit for taking an image of the light ray from the light source portion passing through the opening portion and irradiated to the finger, in which portions of the finger presentation area are a tip end presentation area for presenting a tip end side of the finger, and a root presentation area for presenting a root side of the finger.
    Type: Application
    Filed: February 11, 2014
    Publication date: September 25, 2014
    Applicant: HITACHI, LTD.
    Inventors: Harumi KIYOMIZU, Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE, Yusuke MATSUDA
  • Patent number: 8811689
    Abstract: An authentication device including: a finger presenting unit to which a finger to be authenticated is presented; an opening formed on the finger presenting unit; a light source that irradiates light onto the finger; an image capture unit that captures a picture including a vein of the finger, by the light; and a finger placement table capable of placing a finger thereon, except the finger to be authenticated, wherein the finger placement table has a surface, a height of which is higher than the finger presenting unit, wherein the light source is placed inside the finger placement table, and wherein the finger placement table has a sidewall having a window that is used to allow an irradiation axis of the light from the light source upon the image capture unit.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 19, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Harumi Kiyomizu, Naoto Miura, Takafumi Miyatake, Akio Nagasaka
  • Patent number: 8805028
    Abstract: Personal identification is implemented by picking up finger vein patterns when the user naturally grasps a grip such as doorknob. The device for personal identification has a light source provided to irradiate light on the finger from the palm side, a camera to pick up the vessel image of the finger, and a processor to extract features of the vessel from the image and compare the obtained features with the registered ones. The camera picks up the light that exits from the backside of the finger after penetrating it.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 12, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Harumi Kiyomizu
  • Publication number: 20140184774
    Abstract: A personal identification apparatus includes a finger inlet into which a finger inserted; an interface where the finger is introduced through the finger inlet; a plurality of light sources provided inside the interface to irradiate light to the finger from a plurality of directions; image pick-up units being respectively arranged opposite to the plurality of light sources and respectively capturing an image from light transmitted from the plurality of light sources through the finger; a unit for adjusting when the plurality of light sources transmit light onto the finger; and a unit for extracting blood vessel patterns contained in images captured by the image pick-up units from the light transmitted though the finger and collating each of the extracted blood vessel patterns with a registered blood vessel pattern for personal identification.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 3, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
  • Publication number: 20140126783
    Abstract: An identification apparatus keeps the conditions for imaging uniform among successive identifications, and requires a user to perform only a series of simple maneuvers. The apparatus comprises a guide member, a light source, and an imaging unit. The guide member includes a pattern or structure for a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member is located in the guide member where a fingertip is positioned. An optical opening is formed at a position coincident with where a finger to be imaged should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images. The apparatus may also include dual light sources power saving functionality, and means for limiting the interference of external light sources.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 8, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Akio Nagasaka, Takefumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono