Patents by Inventor Shinichi Arita

Shinichi Arita 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: 20230080501
    Abstract: Laser processing device (100) includes laser oscillator (10) that generates laser light beam (LB), optical fiber (30) that transmits laser light beam (LB), laser head (40) that emits laser light beam (LB) to workpiece (W), and chiller (50) that passes and circulates cooling water through laser oscillator (10) to cool laser oscillator (10). Laser oscillator (10) includes: a plurality of laser diodes; and a base having a cooling water channel therein and having the laser diodes mounted on a surface thereof. Laser processing device (100) is configured to change the incident angle of laser light beam (LB) entering optical fiber (30) by changing the water pressure of the cooling water flowing through the cooling water channel.
    Type: Application
    Filed: November 1, 2022
    Publication date: March 16, 2023
    Inventors: TOMOYUKI KAGEYAMA, HITOSHI NAGANO, SHINICHI ARITA
  • Publication number: 20230003973
    Abstract: An optical system includes a first lens of a negative refractive power having a concave image-side surface; a second lens of a negative refractive power having a concave image-side surface; a third lens of a positive refractive power having a concave image-side surface; a fourth lens of a positive refractive power having a convex image-side surface; a fifth lens of a positive refractive power having a concave object-side surface and a convex image-side surface; a sixth lens of a negative refractive power having a concave object-side surface and a convex image-side surface; a seventh lens being an aspherical lens, and having an object-side surface with a convex center portion, and an image-side surface with a concave center portion, and each of the object-side surface and the image-side surface of the seventh lens having at least one inflection point at a periphery of the center portion.
    Type: Application
    Filed: August 26, 2022
    Publication date: January 5, 2023
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Shinichi ARITA, Xianchang HOU
  • Publication number: 20220413266
    Abstract: An optical system includes: a first lens and a second lens, each has a negative refractive power and a concave image-side surface; a third lens of a positive refractive power having a concave image-side surface; a fourth lens of a positive refractive power having a convex image-side surface; a fifth lens of a positive refractive power having a concave object-side surface and a convex image-side surface; a sixth lens of a negative refractive power having a concave object-side surface and a convex image-side surface; a seventh lens of a positive refractive power having a convex image-side surface and an aspherical object-side surface having a convex center portion and at least one inflection point at a periphery portion; and an eighth lens having a concave object-side surface and an aspherical image-side surface having a concave center portion and at least one inflection point at a periphery portion.
    Type: Application
    Filed: August 26, 2022
    Publication date: December 29, 2022
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Shinichi ARITA, Xianchang HOU
  • Patent number: 10812678
    Abstract: Image quality degradation of an output image can be reduced. A control unit includes a correction intensity determination unit that determines a first magnification for reducing a reduction region including a subject and a second magnification for enlarging an enlargement region and an image correction unit that corrects an input image by using the first magnification and the second magnification. The correction intensity determination unit determines the first magnification based on the second magnification and the widths of a first region and a second region in the input image.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: October 20, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keisuke Omori, Kei Tokui, Shinichi Arita, Daisuke Murayama, Takayuki Tamaru
  • Patent number: 10746965
    Abstract: An imaging lens includes: a first lens having a convex surface facing the object side, and having a positive refractive power; a second lens being a meniscus lens having a negative refractive power; a third lens having a concave surface facing the imaging side; a fourth lens being a meniscus lens having a positive refractive power, having a convex surface facing the image side; a fifth lens having a negative refractive power, having a concave surface facing the image side on an optical axis, the surface facing the image side having an inflection point outside the optical axis; a sixth lens having a rear surface facing the image side and a front surface facing the object side, the rear surface being aspherical with a inflection point outside an optical axis, the front surface having a curvature less than other lenses' curvatures, the sixth lens serving as an infrared cut-off filter.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: August 18, 2020
    Assignee: NANCHANG O-FILM OPTICAL-ELECTRONIC TECH CO., LTD
    Inventor: Shinichi Arita
  • Publication number: 20200007710
    Abstract: Image quality degradation of an output image can be reduced. A control unit includes a correction intensity determination unit that determines a first magnification for reducing a reduction region including a subject and a second magnification for enlarging an enlargement region and an image correction unit that corrects an input image by using the first magnification and the second magnification. The correction intensity determination unit determines the first magnification based on the second magnification and the widths of a first region and a second region in the input image.
    Type: Application
    Filed: November 2, 2017
    Publication date: January 2, 2020
    Inventors: KEISUKE OMORI, KEI TOKUI, SHINICHI ARITA, DAISUKE MURAYAMA, TAKAYUKI TAMARU
  • Publication number: 20190064485
    Abstract: An imaging lens includes: a first lens having a convex surface facing the object side, and having a positive refractive power; a second lens being a meniscus lens having a negative refractive power; a third lens having a concave surface facing the imaging side; a fourth lens being a meniscus lens having a positive refractive power, having a convex surface facing the image side; a fifth lens having a negative refractive power, having a concave surface facing the image side on an optical axis, the surface facing the image side having an inflection point outside the optical axis; a sixth lens having a rear surface facing the image side and a front surface facing the object side, the rear surface being aspherical with a inflection point outside an optical axis, the front surface having a curvature less than other lenses' curvatures, the sixth lens serving as an infrared cut-off filter.
    Type: Application
    Filed: July 17, 2018
    Publication date: February 28, 2019
    Applicant: Nanchang O-FILM Optical-Electronic Tech CO., LTD
    Inventor: Shinichi ARITA
  • Patent number: 10091489
    Abstract: An image capturing device includes at least two image sensors and an image processing unit that performs image processing on image information that is captured by image sensors and an image display unit that displays the image information on which the image processing is performed by the image processing unit. The image processing unit displays two base points on the image display unit in a same direction as a direction in which the two image sensors are arranged, calculates a disparity value between a first base point and a second base point that are the two base points with the two image sensors, calculates a length between the first base point and the second base point, and displays a result of calculation of the length between the first base point and the second base point on the image display unit.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 2, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Daisuke Murayama, Kenichi Iwauchi, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Nao Shibuhisa
  • Patent number: 10074179
    Abstract: An image measurement device acquires a first measurement region and a second measurement region on an image, acquires distance information corresponding to the first measurement region and distance information corresponding to the second measurement region, and computes a distance between the two regions. In a case where the first measurement region is displaced on the image, the second measurement region is displaced on a contour or a plane on the image, and a distance between the first measurement region after the displacement and the second measurement region after the displacement is computed. Thereby, distance measurement is able to be performed over a wide range without a complicated operation in the image measurement device for measuring a distance between two regions by using an image.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: September 11, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinichi Arita, Kei Tokui
  • Patent number: 9729844
    Abstract: In the related art, it was difficult to compare lengths of a plurality of objects which were present at different places. However, it is possible to easily compare lengths of photographed objects using an image capturing device which displays a length of an object which is calculated based on parallax information, by obtaining an image in which the object is photographed and the parallax information corresponding to the image as inputs, the device including an object extraction unit which extracts an image of an object using the parallax information from the photographed image; a comparison data maintaining unit which maintains the image of the object and the length of the object; an object comparison unit which compares the length of the object which is extracted using the object extraction unit to a length of comparison data which is extracted from the comparison data maintaining unit; and an image composition unit which combines a comparison result with the photographed image, and outputs the image.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: August 8, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nao Shibuhisa, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Daisuke Murayama
  • Patent number: 9633450
    Abstract: An image measurement device calculates a disparity value from image data of images having disparity, acquires three-dimensional position information at the time of capturing the image data by using the disparity value, and calculates a three-dimensional plane from a region on an image serving as a same plane as a designated measurement region. Three-dimensional positions of the measurement region are acquired from the calculated three-dimensional plane to calculate a length. Accordingly, by using captured images having disparity, it is possible to measure a length of any part even in a region that the disparity value is hard to be acquired.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: April 25, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinichi Arita
  • Publication number: 20160292888
    Abstract: An image measurement device calculates a disparity value from image data of images having disparity, acquires three-dimensional position information at the time of capturing the image data by using the disparity value, and calculates a three-dimensional plane from a region on an image serving as a same plane as a designated measurement region. Three-dimensional positions of the measurement region are acquired from the calculated three-dimensional plane to calculate a length. Accordingly, by using captured images having disparity, it is possible to measure a length of any part even in a region that the disparity value is hard to be acquired.
    Type: Application
    Filed: November 26, 2013
    Publication date: October 6, 2016
    Inventor: Shinichi ARITA
  • Publication number: 20160086322
    Abstract: An image measurement device acquires a first measurement region and a second measurement region on an image, acquires distance information corresponding to the first measurement region and distance information corresponding to the second measurement region, and computes a distance between the two regions. In a case where the first measurement region is displaced on the image, the second measurement region is displaced on a contour or a plane on the image, and a distance between the first measurement region after the displacement and the second measurement region after the displacement is computed. Thereby, distance measurement is able to be performed over a wide range without a complicated operation in the image measurement device for measuring a distance between two regions by using an image.
    Type: Application
    Filed: April 28, 2014
    Publication date: March 24, 2016
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinichi ARITA, Kei TOKUI
  • Patent number: 9070223
    Abstract: An image processing device includes a map filtering processing unit which applies filtering to a parallax map based on a parallax value with respect to each pixel of an image; a blurred image generation unit which generates a blurred image of the image from the image; and an image composition unit which generates a composite image which is obtained by compositing the image and the blurred image based on the parallax map after the filtering by the map filtering processing unit.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: June 30, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoya Shimura, Seiichi Tanaka, Shinichi Arita, Takuya Okamoto, Takashi Yasumoto
  • Publication number: 20150062305
    Abstract: An image capturing device includes at least two image sensors and an image processing unit that performs image processing on image information that is captured by image sensors and an image display unit that displays the image information on which the image processing is performed by the image processing unit. The image processing unit displays two base points on the image display unit in a same direction as a direction in which the two image sensors are arranged, calculates a disparity value between a first base point and a second base point that are the two base points with the two image sensors, calculates a length between the first base point and the second base point, and displays a result of calculation of the length between the first base point and the second base point on the image display unit.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 5, 2015
    Inventors: Daisuke Murayama, Kenichi Iwauchi, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Nao Shibuhisa
  • Publication number: 20150042756
    Abstract: In the related art, it was difficult to compare lengths of a plurality of objects which were present at different places. However, it is possible to easily compare lengths of photographed objects using an image capturing device which displays a length of an object which is calculated based on parallax information, by obtaining an image in which the object is photographed and the parallax information corresponding to the image as inputs, the device including an object extraction unit which extracts an image of an object using the parallax information from the photographed image; a comparison data maintaining unit which maintains the image of the object and the length of the object; an object comparison unit which compares the length of the object which is extracted using the object extraction unit to a length of comparison data which is extracted from the comparison data maintaining unit; and an image composition unit which combines a comparison result with the photographed image, and outputs the image.
    Type: Application
    Filed: April 3, 2013
    Publication date: February 12, 2015
    Inventors: Nao Shibuhisa, Kei Tokui, Yasutaka Wakabayashi, Shinichi Arita, Daisuke Murayama
  • Patent number: 8619183
    Abstract: In order to perform adjustment of relative positions between an optical system and imaging devices, a plurality of the imaging devices, a plurality of solid lenses that form images of the imaging devices, and a plurality of optical-axis control units that control the direction of optical axes of light incident to the imaging devices are included.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: December 31, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Ito, Makoto Kitagawa, Tomoya Shimura, Shinichi Arita, Satoru Inoue, Hirokazu Katakame, Sakae Saito, Shunichi Sato
  • Publication number: 20130279799
    Abstract: An image processing device includes a map filtering processing unit which applies filtering to a parallax map based on a parallax value with respect to each pixel of an image; a blurred image generation unit which generates a blurred image of the image from the image; and an image composition unit which generates a composite image which is obtained by compositing the image and the blurred image based on the parallax map after the filtering by the map filtering processing unit.
    Type: Application
    Filed: September 13, 2011
    Publication date: October 24, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoya Shimura, Seiichi Tanaka, Shinichi Arita, Takuya Okamoto, Takashi Yasumoto
  • Publication number: 20130170737
    Abstract: A stereoscopic image converting apparatus is capable of displaying a stereoscopic image. The apparatus comprises a photographing condition extracting portion for extracting convergent angle conversion information when right/left images are captured; and an image converting portion for changing the convergence angle of the time when the right/left images are captured. The image converting portion comprises a convergent angle correction value calculating portion which calculates the maximum disparity value of the right/left images on the basis of the convergent angle conversion information and display size information and calculates a convergent angle correction value at which the calculated maximum disparity value is equal to or lower than a previously designated maximum disparity value; and a convergent angle conversion processing portion which generates an image in which the convergent angle when the right/left images are captured is changed on the basis of the calculated convergent angle correction value.
    Type: Application
    Filed: October 6, 2011
    Publication date: July 4, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinichi Arita, Tomoya Shimura
  • Patent number: 8441557
    Abstract: A zoom lens includes a first lens group with positive refracting power and normally located at a fixed position, a second lens group with negative refracting power and movable in an optical axis direction for zooming, a third lens group with positive refracting power and normally located at a fixed position, a fourth lens group with positive refracting power and movable in the optical axis direction for correction of a focal position for zooming and focusing, and a fifth lens group. These lens groups are arranged in order from an object side to an image side. The zoom lens satisfies the conditional equations (1) 1.00<f3/f4<2.49 and (2) 1.00<|fw1˜2/f2|<1.50, where f2 to f4 are focal lengths of the second to fourth lens groups, and fw1˜2 is a synthetic focal length of the first and second lens groups at the wide-angle end.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: May 14, 2013
    Assignee: Sony Corporation
    Inventors: Takuya Anzawa, Shinichi Arita