Patents by Inventor Jun-ichi Kodaira

Jun-ichi Kodaira 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: 10634496
    Abstract: A surveying system comprises a total station unit, a laser scanner unit and an arithmetic control unit. The total station unit comprises a frame unit, a telescope unit, a total station distance measuring unit accommodated in the telescope unit and a total station arithmetic control unit, wherein the laser scanner unit is provided on the frame unit and acquires point cloud data by rotatably irradiating a laser beam in a vertical direction, and wherein the arithmetic control unit acquires the point cloud data by a cooperation of a horizontal rotation of the frame unit and a rotary irradiation of the laser beam, compares a distance measurement result of the total station unit with a distance measurement result of the laser scanner unit and corrects the point cloud data based on a comparison result.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: April 28, 2020
    Assignee: TOPCON Corporation
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 10088310
    Abstract: A tilt detecting device comprising, a light source for projecting a pattern, a liquid component having a free liquid surface and for rear-surface reflecting by the free liquid surface, a photodetection element for photodetecting a reflection image of the rear-surface reflected pattern, and an arithmetic processing unit, wherein the arithmetic processing unit is adapted to scan a predetermined range of a photodetection surface of the photodetection element as many times as required and performs averaging processing to a photodetection signal as detected and calculates a barycentric position of the pattern based on signals subjected to averaging processing.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 2, 2018
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Jun-ichi Kodaira
  • Patent number: 9952040
    Abstract: The invention provides a tilt detecting device, in which a fixed member and a tilting plate are relatively rotatably provided via a pivot member, either one of the fixed member or the tilting plate is integral with the pivot member, comprising a tilt detecting unit provided on either of the fixed member or the tilting plate which relatively rotates with respect to the pivot member, and an angle detection pattern formed on the pivot member, wherein the tilt detecting unit comprises a light source for projecting an illumination light to the pivot member, a photodetection element for receiving the illumination light reflected by the pivot member, an optical system for projecting a pattern image to the photodetection element and an arithmetic unit for detecting a rotation of the pivot member based on a projecting position of the pattern image projected onto the photodetection element when the pivot member rotates.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 24, 2018
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Jun-ichi Kodaira
  • Publication number: 20170363421
    Abstract: A surveying system comprises a total station unit, a laser scanner unit and an arithmetic control unit. The total station unit comprises a frame unit, a telescope unit, a total station distance measuring unit accommodated in the telescope unit and a total station arithmetic control unit, wherein the laser scanner unit is provided on the frame unit and acquires point cloud data by rotatably irradiating a laser beam in a vertical direction, and wherein the arithmetic control unit acquires the point cloud data by a cooperation of a horizontal rotation of the frame unit and a rotary irradiation of the laser beam, compares a distance measurement result of the total station unit with a distance measurement result of the laser scanner unit and corrects the point cloud data based on a comparison result.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 21, 2017
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • 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
  • Publication number: 20160161253
    Abstract: A tilt detecting device comprising, a light source for projecting a pattern, a liquid component having a free liquid surface and for rear-surface reflecting by the free liquid surface, a photodetection element for photodetecting a reflection image of the rear-surface reflected pattern, and an arithmetic processing unit, wherein the arithmetic processing unit is adapted to scan a predetermined range of a photodetection surface of the photodetection element as many times as required and performs averaging processing to a photodetection signal as detected and calculates a barycentric position of the pattern based on signals subjected to averaging processing.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 9, 2016
    Inventor: Jun-ichi Kodaira
  • Publication number: 20160153774
    Abstract: The invention provides a tilt detecting device, in which a fixed member and a tilting plate are relatively rotatably provided via a pivot member, either one of the fixed member or the tilting plate is integral with the pivot member, comprising a tilt detecting unit provided on either of the fixed member or the tilting plate which relatively rotates with respect to the pivot member, and an angle detection pattern formed on the pivot member, wherein the tilt detecting unit comprises a light source for projecting an illumination light to the pivot member, a photodetection element for receiving the illumination light reflected by the pivot member, an optical system for projecting a pattern image to the photodetection element and an arithmetic unit for detecting a rotation of the pivot member based on a projecting position of the pattern image projected onto the photodetection element when the pivot member rotates.
    Type: Application
    Filed: November 19, 2015
    Publication date: June 2, 2016
    Inventor: Jun-ichi Kodaira
  • 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
  • Patent number: 9335168
    Abstract: A surveying instrument which comprises a rotation unit 7 adapted to direct a distance measuring optical axis to an object to be measured and the rotary drive unit 5 rotates the rotation unit, comprising a rotary motor for rotating an output shaft 6 and a clutch unit for connecting or disconnecting the rotary motor and the output shaft, wherein the rotary motor and the clutch unit are arranged in a series along the output shaft, and the output shaft is fixed to the rotation unit.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 10, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Jun-ichi Kodaira, Naoto Miki
  • Patent number: 9303987
    Abstract: The invention provides a tilt angle detecting device which has a two-liquid tube (19), comprising a transparent container (16) containing a first liquid (17) and a second liquid (18) having different property, specific gravity, and optical transmissivity from each other, wherein a movement occurs between the first liquid and the second liquid by tilting of the transparent container.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 5, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Takashi Takahashi, Jun-ichi Kodaira
  • Patent number: 9279679
    Abstract: A construction machine control system comprises a laser surveying instrument for projecting a laser beam in rotary irradiation at constant speed and a construction machine for operating in a photodetection range of the laser beam, and in the construction machine control system, the construction machine comprises a working mechanical unit for carrying out construction operation, a machine control device for controlling the working mechanical unit, and at least three beam detectors which are disposed at known positions with respect to a device reference position of the construction machine and have a photodetector for receiving the laser beam and a direction of the construction machine is calculated based on photodetection timing of each of the beam detectors and the machine control device controls the working mechanical unit so that direction of the construction machine is set to a condition as required based on a result of calculation.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: March 8, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira, Raymond M. O'Connor
  • Patent number: 9273959
    Abstract: The invention provides a surveying instrument (1) which has a measuring unit comprises an operation control panel (4) rotatably mounted on the measuring unit with vertical axis as the center with respect to the measuring unit, and a relative angle detecting means for detecting a relative angle of the operation control panel and the measuring unit, wherein the operation control panel is so arranged that a command is issued to relatively rotate the measuring unit based on the relative angle detected by the relative angle detecting means.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: March 1, 2016
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 9103678
    Abstract: An attachment device 46 is for attaching and removing a distance measuring instrument 3 to and from an angle measuring instrument, and the attachment device comprises a base unit 61 where the distance measuring instrument is fixed, a fixing unit 55 for fixing the base unit on the angle measuring instrument, and an optical member 52 for deflecting a distance measuring light from the distance measuring instrument so as to concur with a sighting optical axis of the angle measuring instrument.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: August 11, 2015
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 9106805
    Abstract: An image measuring system comprises a projection optical system, having a light source for emitting and projecting an illumination light through a light projection optical axis. The system further comprises a photodetection optical system, having an image pickup element, which receives a retroreflection light from an object to be measured through a photodetection optical axis, and a control arithmetic device for processing the data taken by the image pickup element. The projection optical system comprises a light projection unit for directing the light projection optical axis toward the object to be measured and projecting the illumination light, a projection angle changing means for rotating the light projection unit in an elevating and a horizontal direction and for changing a projection angle of the illumination light, and a direction detecting means for detecting a direction angle of the light projection optical axis with respect to the photodetection optical axis.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: August 11, 2015
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 8959783
    Abstract: A laser surveying system comprises a leveling unit (3) having a motor for leveling, a light source unit (14) for emitting a laser beam, a light projecting optical system installed on the leveling unit and for projecting the laser beam, a power supply unit for supplying electric power to each of component sites, a control unit (7) for driving and controlling each of the component sites, a storage unit (26), a tilt detecting means (11) installed on the leveling unit and used for detecting leveling conditions, a rotation number detecting means (13) for detecting number of rotations of the motor, a light source detecting means (16a and 16b) for detecting light emitting condition of the light source unit, a voltage detecting means (24) for detecting output voltage of the power source unit, and an abnormality detecting means for detecting operational abnormality, and in the laser surveying system, the control unit monitors whether there is abnormality or not by the abnormality detecting means, samples a detection s
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20140317944
    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: Application
    Filed: April 9, 2014
    Publication date: October 30, 2014
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Satoshi Yanobe, Jun-ichi Kodaira
  • Publication number: 20140304995
    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: Application
    Filed: April 2, 2014
    Publication date: October 16, 2014
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 8857068
    Abstract: A rotary laser irradiating system, comprising a light emitting unit (41, 42) for emitting a laser beam, a rotator for forming a reference plane by projecting the laser beam by rotary irradiation, a tilt driving unit (21) for tilting the reference plane, a control unit (35) for controlling a light emission of the light emitting unit, and a tilted axis indicating means (35, 44) for turning off the laser beam so as to form a tilted reference axis indicating range in a tilt setting reference axis direction for setting a tilt.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: October 14, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventor: Jun-ichi Kodaira
  • Publication number: 20140259709
    Abstract: The invention provides a surveying instrument (1) which has a measuring unit comprises an operation control panel (4) rotatably mounted on the measuring unit with vertical axis as the center with respect to the measuring unit, and a relative angle detecting means for detecting a relative angle of the operation control panel and the measuring unit, wherein the operation control panel is so arranged that a command is issued to relatively rotate the measuring unit based on the relative angle detected by the relative angle detecting means.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 18, 2014
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20140259712
    Abstract: The invention provides a tilt angle detecting device which has a two-liquid tube (19), comprising a transparent container (16) containing a first liquid (17) and a second liquid (18) having different property, specific gravity, and optical transmissivity from each other, wherein a movement occurs between the first liquid and the second liquid by tilting of the transparent container.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Takashi Takahashi, Jun-ichi Kodaira