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: 8788154
    Abstract: A construction machine control system comprises a laser surveying instrument for projecting N-shaped beams in rotary irradiation, a construction machine operated within a predetermined range of the N-shaped beams, and an elevation angle detecting unit. 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 disposed at known positions with respect to reference position of the construction machine. The beam detectors detect the three fan beams and output result of photodetection. The elevation angle detecting unit obtains elevation angles of each of the beam detectors with respect to the laser surveying instrument based on result of photodetection of three fan beams from the beam detectors. The machine control device is configured to control tilting of the working mechanical unit based on the elevation angle obtained.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Raymond M. O'Connor, Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20140196293
    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: Application
    Filed: January 6, 2014
    Publication date: July 17, 2014
    Applicant: Kabushiki Kaisha TOPCON
    Inventors: Jun-ichi Kodaira, Naoto Miki
  • Publication number: 20140074295
    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: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira, Raymond M. O'Connor
  • Publication number: 20140074361
    Abstract: A construction machine control system comprises a laser surveying instrument for projecting N-shaped beams in rotary irradiation, a construction machine operated within a predetermined range of the N-shaped beams, and an elevation angle detecting unit. 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 disposed at known positions with respect to reference position of the construction machine. The beam detectors detect the three fan beams and output result of photodetection. The elevation angle detecting unit obtains elevation angles of each of the beam detectors with respect to the laser surveying instrument based on result of photodetection of three fan beams from the beam detectors. The machine control device is configured to control tilting of the working mechanical unit based on the elevation angle obtained.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Raymond M. O'Connor, Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20130152412
    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: Application
    Filed: September 12, 2011
    Publication date: June 20, 2013
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20130000133
    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: Application
    Filed: March 11, 2011
    Publication date: January 3, 2013
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventor: Jun-ichi Kodaira
  • Patent number: 7433028
    Abstract: A laser surveying instrument, comprising a laser projector for projecting a laser beam by rotary irradiation and designed as tiltable, a tilting unit for tilting the laser projector, a rotating unit for integrally rotating the tilting unit and the laser projector in horizontal direction, a tilt setting unit for tilting the laser projector with respect to the rotating unit and for setting a target tilt angle, a tilt angle detector for detecting tilting of the laser projector, tilt sensors provided on the tilt setting unit in two directions perpendicularly crossing and for detecting horizontal direction, a horizontal angle detector for detecting horizontal rotation angle of the rotating unit, and an arithmetic control unit for controlling rotation angle of the rotating unit based on detection results of the tilt sensors and based on detection results of the horizontal angle detector.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: October 7, 2008
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Publication number: 20070103672
    Abstract: A laser surveying instrument, comprising a laser projector for projecting a laser beam by rotary irradiation and designed as tiltable, a tilting unit for tilting the laser projector, a rotating unit for integrally rotating the tilting unit and the laser projector in horizontal direction, a tilt setting unit for tilting the laser projector with respect to the rotating unit and for setting a target tilt angle, a tilt angle detector for detecting tilting of the laser projector, tilt sensors provided on the tilt setting unit in two directions perpendicularly crossing and for detecting horizontal direction, a horizontal angle detector for detecting horizontal rotation angle of the rotating unit, and an arithmetic control unit for controlling rotation angle of the rotating unit based on detection results of the tilt sensors and based on detection results of the horizontal angle detector.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 10, 2007
    Inventors: Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 7196776
    Abstract: A distance-measuring system, which comprises a light source unit for emitting a distance-measuring light, a photodetection optical system having a photodetection optical axis, a projecting optical system having a projecting light optical axis and for projecting the distance-measuring light from the light source unit to an object to be measured and for guiding the distance-measuring light reflected from the object to be measured toward the photodetection optical system, and an internal reference optical system for guiding the distance-measuring light from the light source unit to the photodetection optical system as an internal reference light, wherein the light source unit can emit two distance-measuring lights with different spreading angles, and one of the light source unit and the projection optical system has a decentering member for decentering the distance-measuring light with respect to the projecting light optical axis.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: March 27, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: 7177015
    Abstract: A distance-measuring device, comprising a light source unit for emitting a distance-measuring light, a photodetection optical system, a projecting optical system for projecting the distance-measuring light from the light source unit to an object to be measured and for guiding the distance-measuring light reflected by the object to be measured to the photodetection optical system, and an internal reference optical system for guiding the distance-measuring light from the light source unit toward the photodetection optical system, wherein the light source unit can emit two distance-measuring lights having different spreading angles and having the same or almost the same wavelengths, and the photodetection optical system has an optical filter which transmits light components of narrower wavelength range of the distance-measuring light.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: February 13, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 7130035
    Abstract: A target for a surveying instrument, which receives from the surveying instrument a laser point light indicating a position and a distance measuring light to measure a distance, comprising a reflection diffusion layer for reflecting and diffusing the distance measuring light, a wavelength filter layer for selectively transmitting the laser point light passing through the reflection diffusion layer, and a transmission diffusion layer for spreading in a given direction and for transmitting the laser point light passing through the wavelength filter layer, wherein a projecting position of the laser point light can be confirmed.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 31, 2006
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: 7092076
    Abstract: A surveying instrument, comprising a collimation optical system and a visible laser projecting device with a visible laser light source unit for emitting a point light, wherein the surveying instrument comprises a photodetector for detecting a reflection light entering from the collimation optical system, and a control means for controlling light emission of the visible laser light source unit based on a detection result of the photodetector.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 15, 2006
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Publication number: 20060077380
    Abstract: A target for a surveying instrument, which receives from the surveying instrument a laser point light indicating a position and a distance measuring light to measure a distance, comprising a reflection diffusion layer for reflecting and diffusing the distance measuring light, a wavelength filter layer for selectively transmitting the laser point light passing through the reflection diffusion layer, and a transmission diffusion layer for spreading in a given direction and for transmitting the laser point light passing through the wavelength filter layer, wherein a projecting position of the laser point light can be confirmed.
    Type: Application
    Filed: June 24, 2005
    Publication date: April 13, 2006
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: 6894767
    Abstract: A light wave distance-measuring system, comprising a projection optical system having an optical axis of outgoing light and for projecting a measuring light, and a photodetection optical system having an optical axis of a returning light and for receiving a reflection light, wherein the photodetection optical system comprises a light receiving lens for receiving and for converging the reflection light, a light receiving surface where the reflection light enters, and a ring-like perforated multi-focal optical member arranged between the light receiving surface and the light receiving lens and for converging the light to the light receiving surface.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: May 17, 2005
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Ikuo Ishinabe, Jun-ichi Kodaira
  • Patent number: 6892464
    Abstract: The present invention provides a laser sighting device, which comprises a tilt detecting device having a liquid member for forming a free liquid surface and a fixed reflection member fixedly mounted, the tilt detecting device being used for detecting angular deviation between the free liquid surface and the fixed reflection member, a main unit for accommodating the tilt detecting device, and a laser beam irradiation unit removably mounted on the main unit.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: May 17, 2005
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: 6881926
    Abstract: A laser irradiating system, comprising a light source for emitting a laser beam in elliptical shape, a light source holder for holding the light source, a base for rotatably supporting the light source holder, a first driving unit for rotating the light source holder, a deflecting optical means for deflecting the laser beam from the light source in a direction perpendicular to an optical axis, a rotator holder for holding the deflecting optical means and being rotatable around the optical axis of the light source, a cylindrical lens being arranged so that a center of the cylindrical lens is aligned with the optical axis and the laser beam from the deflecting optical means enters perpendicularly to the optical axis and for diffusing the transmitting laser beam to a fan-shaped laser beam, a control unit for controlling the first driving unit and a receiver for receiving a signal for remote-control operation, wherein an irradiating direction of the fan-shaped laser beam can be operated in remote control operatio
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: April 19, 2005
    Assignee: Kabishiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Publication number: 20040246461
    Abstract: A distance-measuring system, which comprises a light source unit for emitting a distance-measuring light, a photodetection optical system having a photodetection optical axis, a projecting optical system having a projecting light optical axis and for projecting the distance-measuring light from the light source unit to an object to be measured and for guiding the distance-measuring light reflected from the object to be measured toward the photodetection optical system, and an internal reference optical system for guiding the distance-measuring light from the light source unit to the photodetection optical system as an internal reference light, wherein the light source unit can emit two distance-measuring lights with different spreading angles, and one of the light source unit and the projection optical system has a decentering member for decentering the distance-measuring light with respect to the projecting light optical axis.
    Type: Application
    Filed: May 3, 2004
    Publication date: December 9, 2004
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Publication number: 20040207832
    Abstract: A surveying instrument, comprising a collimation optical system and a visible laser projecting device with a visible laser light source unit for emitting a point light, wherein the surveying instrument comprises a photodetector for detecting a reflection light entering from the collimation optical system, and a control means for controlling light emission of the visible laser light source unit based on a detection result of the photodetector.
    Type: Application
    Filed: March 30, 2004
    Publication date: October 21, 2004
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Patent number: 6796040
    Abstract: A line laser device, comprising a light source for emitting a laser beam, a light emitting unit having optical means for projecting the laser beam from the light source in fan-like shape, an optical member arranged on the fan-shaped laser beam and for forming a spot light on a part of the fan-shaped laser beam, and support means for supporting the optical member so that the spot light formed on the fan-shaped laser beam can be shifted.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: September 28, 2004
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Jun-ichi Kodaira
  • Publication number: 20040125357
    Abstract: A distance-measuring device, comprising a light source unit for emitting a distance-measuring light, a photodetection optical system, a projecting optical system for projecting the distance-measuring light from the light source unit to an object to be measured and for guiding the distance-measuring light reflected by the object to be measured to the photodetection optical system, and an internal reference optical system for guiding the distance-measuring light from the light source unit toward the photodetection optical system, wherein the light source unit can emit two distance-measuring lights having different spreading angles and having the same or almost the same wavelengths, and the photodetection optical system has an optical filter which transmits light components of narrower wavelength range of the distance-measuring light.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 1, 2004
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Jun-Ichi Kodaira