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).

  • 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
  • Patent number: 8670596
    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: Grant
    Filed: January 25, 2012
    Date of Patent: March 11, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
  • Patent number: 8649571
    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: April 3, 2013
    Date of Patent: February 11, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono
  • Publication number: 20130329031
    Abstract: An authentication apparatus that authenticates individuals with the use of features of a living body includes an input device for placing the living body thereon, an imaging device that images the living body, an image processing unit that processes an image taken by the imaging device, the features of the living body, a plurality of light sources for imaging the living body, and a light guide member. The authentication apparatus also includes first feature data registered in advance, a storage device that stores the first feature data therein, second feature data indicative of the features of the living body imaged by the imaging device, and a checking processing unit that checks the first feature data against the second feature data. The plurality of light sources is arranged on a lower portion of the light guide member, and the plurality of light sources is sequentially turned on.
    Type: Application
    Filed: April 22, 2011
    Publication date: December 12, 2013
    Applicant: HITACHI, LTD.
    Inventors: Naoto Miura, Harumi Kiyomizu, Akio Nagasaka, Takafumi Miyatake, Yusuke Matsuda
  • Patent number: 8582831
    Abstract: A personal identification device including: an image pickup unit; a guide unit to set a finger to be captured; a light source which emits light adapted to be transmitted through the finger and incident on the image pickup unit; an image operating unit which generates a vein pattern from an image picked by the image pickup unit for personal identification, wherein the image operating unit is adapted to detect a contour of the set finger, calculate a width of the contour, and normalize the image based on a magnification determined by using the width of the contour.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: November 12, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
  • Publication number: 20130261413
    Abstract: To obtain a blood sugar level accurately, the location of a blood-vessel part is specified by using a first wavelength at which absorption by hemoglobin, which is a component unique to blood, is high, and data of light absorbance measured by using a second wavelength at which absorption by glucose is high is separated into a blood-vessel part and other parts.
    Type: Application
    Filed: October 14, 2010
    Publication date: October 3, 2013
    Applicant: HITACHI, LTD.
    Inventors: Takayuki Kawahara, Riichiro Takemura, Tsuyoshi Sonehara, Akio Nagasaka
  • Patent number: 8437512
    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: October 4, 2011
    Date of Patent: May 7, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono
  • Patent number: 8331629
    Abstract: A perfect non-contact type vein authentication apparatus is provided with a light source for emitting infrared light; an input interface equipped with an imaging unit for photographing a vein image of a living body by the infrared light emitted from said light source; a unit for controlling intensity of light to be illuminated; an image calculating unit for performing a feature extracting operation and a feature authenticating operation with respect to an image; and a positioning unit for presenting the living body. More specifically, the light source is provided in front of the living body. Both the light source and the imaging unit are installed in such a positional relationship that the light of the light source gives no adverse influence to the imaging unit. Also, the light source is installed in such a direction that the light of the light source gives no adverse influence to the imaging unit.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: December 11, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Harumi Kiyomizu, Takafumi Miyatake, Akio Nagasaka, Naoto Miura
  • Publication number: 20120308088
    Abstract: A personal identification device including: an image pickup unit; a guide unit to set a finger to be captured; a light source which emits light adapted to be transmitted through the finger and incident on the image pickup unit; an image operating unit which generates a vein pattern from an image picked by the image pickup unit for personal identification, wherein the image operating unit is adapted to detect a contour of the set finger, calculate a width of the contour, and normalize the image based on a magnification determined by using the width of the contour.
    Type: Application
    Filed: August 14, 2012
    Publication date: December 6, 2012
    Inventors: Naoto MIURA, Akio NAGASAKA, Takafumi MIYATAKE
  • Patent number: 8300897
    Abstract: There is provided a finger-vein authentication apparatus including a light source for illuminating one surface of both side-surfaces of a fingertip of a finger with light, and an image sensor for imaging the other surface of the fingertip, the light source and the image sensor being positioned at both sides of a nail of the fingertip with the nail sandwiched therebetween, wherein a fingertip guidance jig for supporting the fingertip and a finger-root guidance jig for supporting a finger-root of the finger are disposed between the light source and the image sensor, a light-shielding unit being disposed on the light-source side, the light-shielding unit being used for shielding the illumination light such that the illumination light will not travel to a ball side of the finger.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: October 30, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Akio Nagasaka, Takafumi Matsumura, Masahide Hayashi, Takafumi Miyatake, Naoto Miura, Harumi Kiyomizu