Patents by Inventor Kaoru Kumagai

Kaoru Kumagai 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: 20170138730
    Abstract: The invention provides a surveying instrument, which comprises a protractor table installed via an installation base and capable of detecting a lateral rotation angle and a surveying instrument main unit mounted on the protractor table via supporting mechanisms capable of rotating longitudinally, wherein the supporting mechanisms enables the surveying instrument main unit to set in a predetermined angle condition with respect to the protractor table, wherein the surveying instrument main unit comprises a distance measuring unit which has a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting the distance measuring light, a light receiving unit for receiving a reflected distance measuring light and a photodetector for receiving the reflected distance measuring light and for producing a light receiving signal, and the distance measuring unit performs a distance measurement of an object to be measured based on the light receiving signal from th
    Type: Application
    Filed: November 8, 2016
    Publication date: May 18, 2017
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20170131404
    Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second i
    Type: Application
    Filed: November 3, 2016
    Publication date: May 11, 2017
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Hitoshi Otani, Tetsuji Anai
  • Patent number: 9648304
    Abstract: A photographing device comprises an image pickup unit to acquire a moving image and a still image of an object, an image pickup control unit, an angle sensor, an image processing unit for extracting characteristic points from a first still image, tracking the characteristic points in the moving image, identifying the characteristic points in a newest image and selecting an orientation point common to the first still image and the newest image, a storage unit, a display unit, and an arithmetic unit. The arithmetic unit performs relative orientation between the first still image and the newest image based on the orientation point and on detection result of the angle sensor, obtains a distance H to the object and a distance B between points where the images have been photographed and performs guidance display where still images can be acquired sequentially when the B/H value reaches a predetermined value or higher.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 9, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Hitoshi Otani, Tetsuji Anai, Kaoru Kumagai
  • Publication number: 20170059709
    Abstract: The invention provides a measuring instrument, which comprises a measuring instrument main unit and an installment base unit for rotatably supporting the measuring instrument main unit in an up-to-bottom direction and in a left-to-right direction, wherein the measuring instrument main unit has a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with the measuring unit, wherein the attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting the tilt sensors and for detecting a tilt angle of the measuring unit with respect to the horizontality under such condition that the tilt sensors detect the horizontality so that the horizontality is detected by the tilt sensors, and wherein the installment base unit has an up-to-bottom motor for rotating the measuring in
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20170059696
    Abstract: The invention provides a measuring instrument, which comprises a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with the measuring unit, wherein the attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting the tilt sensors and for detecting a tilt angle of the measuring unit with respect to the horizontality under such condition that the tilt sensors detects the horizontality so that the horizontality is detected by the tilt sensor, and wherein the distance measurement of the object to be measured is performed by the measuring unit, and a vertical angle of a measuring point is determined based on the result of the tilt detection by the attitude detecting device.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Patent number: 9571794
    Abstract: A surveying apparatus comprises an observation optical system having an image sensor for outputting a digital image signal and a zoom optical system, a reference-pattern projection optical system for making a reference pattern enter the observation optical system in an infinity state and for forming an image on the image sensor, a rotation mechanism capable of rotating in two directions, a horizontal angle detector and a vertical angle detector for detecting a horizontal angle and a vertical angle of rotation in the two directions of the rotation mechanism, and an arithmetic control unit. The arithmetic control unit measures the horizontal angle and the vertical angle of a sighting point based on detection results of the horizontal angle detector and the vertical angle detector and based on a difference between the reference pattern on the image sensor and the sighting point of the observation optical system.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 14, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Kazuki Osaragi, Tetsuji Anai, Fumio Ohtomo
  • Patent number: 9541382
    Abstract: A rotation angle detecting apparatus comprises a bearing holder, a rotation shaft rotatably supported by the bearing holder, a shaft portion space formed in the rotation shaft, a bearing holder space formed in the bearing holder, an angle detection pattern in the shaft portion space, a reference pattern and an image sensor in the bearing holder space, an optical system which exists across the shaft portion space and the bearing holder space and forms a projection image of the angle detection pattern and a projection image of the reference pattern on the image sensor, a photodetection switching means for selectively projecting the projection images of the angle detection pattern and the reference pattern onto the image sensor, and an arithmetic device for calculating a rotation angle of the rotation shaft based on a deviation between the reference pattern and the angle detection pattern received by the image sensor.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 10, 2017
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai, Kazuki Osaragi
  • Patent number: 9523575
    Abstract: A survey apparatus includes a guide light emitting optical system emitting a fan-like visible laser light elongated in upward and downward directions as a guide light, a cylindrical part having a scanning optical system searching a corner reflector provided on a survey pole and a ranging optical system measuring a distance to the corner reflector, a driving part rotating the cylindrical part about a vertical axis in a horizontal direction and rotating the cylindrical part about a horizontal axis, and an angle measurement part measuring a direction of the cylindrical part. The guide light emitting optical system is rotated about the vertical axis in a horizontal direction integrally with the cylindrical part.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 20, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Minoru Chiba
  • Publication number: 20160349051
    Abstract: The invention provides a surveying instrument, which comprises a horizontal rotating unit and a measuring unit installed on the horizontal rotating unit, wherein the horizontal rotating unit comprises a driving unit for rotating the measuring unit, a horizontal angle detector for measuring horizontal angle data, a first synchronization data generating unit, a first storage unit and a first control unit, wherein the first synchronization data generating unit outputs first synchronization data which indicate a timing at a time of acquisition of the horizontal angle data of the horizontal angle detector, the first control unit associates the horizontal angle data with the first synchronization data and stores in the first storage unit, wherein the measuring unit comprises a distance measuring unit for performing a distance measurement, a vertical angle detector for detecting a vertical angle at a time of distance measurement, a second synchronization data generating unit, a second storage unit and a second contr
    Type: Application
    Filed: May 19, 2016
    Publication date: December 1, 2016
    Inventors: Kaoru Kumagai, Ken-ichiro Yoshino
  • Patent number: 9500479
    Abstract: A simplified distance meter comprises a frame, at least two wheels installed in front and rear of the frame, rotation detectors for detecting rotation of at least one wheel, and tilt detecting means installed on the frame, wherein amount of rotations of the wheels is obtained by the rotation detector, and tilting of the frame corresponding to the amount of rotations is acquired by the tilt detecting means.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 22, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Satoshi Yanobe, Jun-ichi Kodaira
  • Patent number: 9482532
    Abstract: A surveying instrument includes a pedestal provided with a guide light irradiation unit provided with a light source to irradiate with guide light indicating a collimation direction of the surveying instrument to an operator, a tracking optical system which locks a target, a ranging optical system which ranges a distance to the target, and a control circuit which calculates surveying data by a ranging result of the ranging optical system, and a transmitting and receiving unit which receives survey setting point data regarding a survey setting operation and sends the surveying data obtained by the control circuit.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: November 1, 2016
    Assignee: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru Kumagai, Minoru Chiba, Masaru Muraki
  • Publication number: 20160266254
    Abstract: The invention provides an electro-optical distance meter, which comprises a light emitting element for emitting a distance measuring light, signal generators for generating two or more proximity frequencies, intermittent pulse generators for generating a modulation signal in which the two or more proximity frequencies are intermitted respectively and converted to pulses with a predetermined width, a projecting optical system for sequentially switching over and projecting intermittent modulated distance measuring light as converted to pulses with predetermined width by the modulation signal, a photodetection unit for receiving a reflected distance measuring light from an object to be measured and producing an intermittent photodetection signal with a predetermined pulse width, other signal generators for generating frequency signals having a difference of a predetermined frequency with respect to the proximity frequency respectively, a frequency converting unit for performing frequency conversion by mixing the
    Type: Application
    Filed: February 24, 2016
    Publication date: September 15, 2016
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20160259039
    Abstract: The invention provides an electro-optical distance meter comprising a light emitting element for emitting a distance measuring light, signal generators for generating two or more proximity frequencies, a modulation signal in which the two or more proximity frequencies are intermitted respectively and converted to pulses with a predetermined width, a projecting optical system for sequentially switching over and projecting intermittent modulated distance measuring light as converted to pulses with predetermined width by the modulation signal, a photodetection unit for receiving a reflected distance measuring light from an object to be measured and producing an intermittent photodetection signal with a predetermined pulse width, a reference signal generator for issuing reference frequency signals having a difference of a predetermined frequency respectively, a frequency converting unit for performing frequency conversion by mixing the intermittent photodetection signals from the photodetection unit and the refer
    Type: Application
    Filed: February 24, 2016
    Publication date: September 8, 2016
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20160238708
    Abstract: The invention provides a posture detecting device, which comprises a tilt detecting unit as rotatably supported around two shafts perpendicular each other to an outer frame and for detecting a tilting from the horizontal, encoders provided on each of the shafts, motors provided so as to rotate each shaft, and a first arithmetic processing unit for driving/controlling the motor based on a detection result from the tilt detecting unit, wherein the first arithmetic processing unit drives the motors so that the tilt detecting unit detects the horizontal based on a signal from the tilt detecting unit when the outer frame is tilted and calculates a posture of the outer frame based on outputs of the encoders when the tilt detecting unit detects the horizontal.
    Type: Application
    Filed: February 9, 2016
    Publication date: August 18, 2016
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Kazuki Osaragi
  • Publication number: 20160238385
    Abstract: The invention provides a surveying instrument, which comprises a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting the distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a photodetection element for receiving the reflected distance measuring light and for producing a photodetection signal and a distance measuring unit for performing a distance measurement based on a light receiving result from the photodetection element, further comprises a first optical axis deflecting unit disposed on a projection optical axis of the distance measuring light for deflecting an optical axis of the distance measuring light at a deflection angle as required and in a direction as required, a second optical axis deflecting unit disposed on a light receiving optical axis for deflecting the reflected distance measuring light at the same deflection angle and in the same direction as the first optical axis deflect
    Type: Application
    Filed: February 9, 2016
    Publication date: August 18, 2016
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Publication number: 20160216110
    Abstract: A system including a pointing rod 4 positioned on a measurement point X, a prism 3 fixed at a position deviated by a first fixed length L1 from the measurement point X in an axial direction PP of the pointing rod 4, an inclination casing 5 for fixing an analysis pattern 41 located at a position deviated by a second fixed length L2 from the prism 3 in an axial direction of the pointing rod 4 and is perpendicular to a surface with respect to the axial direction of the pointing rod 4, and a survey machine 2 having an image-taking section 22, a section of measuring a distance to the prism, and a section of measuring an angle 11,12. The position of the measurement point is measured from a position of the prism 3, an inclination direction A of the pointing rod 4, and the first fixed length L1.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 28, 2016
    Inventors: Nobuyuki NISHITA, Kaoru KUMAGAI
  • Publication number: 20160216109
    Abstract: To provide a measurement system in which a desired reflection target is properly identified. The system 1 includes a prism 4, and a total station 3 which, for conducting distance measurement based on reflected distance-measuring rays which are output to the prism 4 and reflected therefrom. The prism 4 is equipped with specific identification information such that the total station 3 sets up the identification information 6, and incorporates the specific identification information 6 of the prism 4 for checking the above specific identification information 6 and the setup identification information 6.
    Type: Application
    Filed: January 22, 2016
    Publication date: July 28, 2016
    Inventors: Kaoru Kumagai, Nobuyuki Nishita, Jumpei Kochi
  • Publication number: 20160169795
    Abstract: A material analytical sensor includes an emitter that irradiates a material with irradiation light including a wavelength region related to estimation of an amount of a component of the material, a controller that controls an irradiation cycle of the irradiation light, a receiver that receives reflected light from the material to output as a pulse signal and receives disturbance light to output as a noise signal, an integrator that samples N pulse signals during a predetermined period and integrates the sampled N pulse signals to obtain a first integrated value, and samples N noise signals during a same period as the predetermined period with a same cycle as the irradiation cycle and integrates the sampled N noise signals to obtain a second integrated value, and an extractor that deducts the second integrated value from the first integrated value to extract an amount of the reflected light.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 16, 2016
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Shugo Akiyama
  • Patent number: 9369697
    Abstract: A measuring instrument comprises an spherical camera (8) for acquiring image data over total circumference, a laser scanner (6, 7) installed integrally with the spherical camera and for acquiring point cloud data of the surroundings, a synchronous control unit (9) for controlling acquisition of data of the spherical camera and the laser scanner, a storage unit (12) for recording the image data and the point cloud data, an absolute scale acquiring means for acquiring an absolute scale for obtaining an absolute position of when images are photographed by the spherical camera, and a control arithmetic unit (10), wherein the control arithmetic unit calculates a 3D model based on the image data, the point cloud data, and the absolute position.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 14, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Hitoshi Otani, Naoto Kasori, You Sasaki, Jun Sasagawa, Nobuyuki Fukaya
  • Patent number: 9354054
    Abstract: The invention provides a surveying system, which comprises an electronic level and staff devices belonging to either one of two or more groups, wherein the staff device has staffs with bar codes corresponding to groups, to which a staff belongs, and mobile station devices installed on the staffs, wherein the mobile station device has a mobile station display unit to display working data and a mobile station communication unit for performing wireless communication to and from the electronic level, wherein the electronic level has an image pickup unit for acquiring images within a range of working, a control device for extracting staff images from the images, for identifying as to which group the bar code pattern of the extracted staff image belongs and for determining three-dimensional position of the staff based on the staff image, and a main communication unit for transmitting the three-dimensional position obtained to the mobile station device, and wherein the mobile station device displays the relation bet
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 31, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira