Patents by Inventor Hikaru Nagasawa

Hikaru Nagasawa 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: 10545223
    Abstract: An object detection device includes a first optical transceiver that generates a first beam flux and receives a scattered portion of the first beam flux, a second optical transceiver that generates a second beam flux and receives a scattered portion of the second beam flux, and a mirror unit that rotates around a rotation axis. The first beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit, and the scattered portion of the first beam flux is generated by scattering of the first beam flux by an object. The scattered portion of the first beam flux is reflected by the mirror unit before being received by a light receiving portion of the first optical transceiver, and the second beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: January 28, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Shuhei Hayakawa, Hikaru Nagasawa, Masashi Kageyama, Ryouta Ishikawa
  • Publication number: 20180284015
    Abstract: A gas concentration measuring device that can accurately superimpose and display a gas concentration image and a background image so that a gas concentration distribution on the background image can be grasped at a glance. The gas concentration measuring device 1 includes an imaging camera 20 that captures an image of a background 100, a light source 12 that emits constant light to the background, a light receiver 14 that receives light of the light source 12, a gyro sensor 30 for detecting an irradiation spot of the light of the light source 12, and a control device 40 that generates a background image based on an image capturing result of the imaging camera 20, creates a gas concentration distribution based on a light receiving result of the light receiver 14 and a detection result of the gyro sensor 30, and superimposes the gas concentration distribution on the background image.
    Type: Application
    Filed: April 28, 2016
    Publication date: October 4, 2018
    Inventors: Kyuichiro IMADE, Masashi KAGEYAMA, Ryouta ISHIKAWA, Hikaru NAGASAWA
  • Publication number: 20180222581
    Abstract: The unmanned flying body is provided with a gas detector, a distance meter, and an altitude controller. The gas detector emits diagonally downward to the forward side in a moving direction of the unmanned flying body a detecting light frequency-modulated by a predetermined modulation frequency setting a predetermined frequency as a central frequency. The gas detector receives the light, returned from a measurement target to which the detecting light is emitted (an area on a pipe member for transferring gas, irradiated with the detecting light), as first light. The measurement target is checked for gas leakage based on the received first light. The distance meter measures the distance between the gas detector and the measurement target. The altitude controller controls the flight altitude of the unmanned flying body based on the measured distance.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 9, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Hikaru NAGASAWA, Kyuichiro IMADE, Masashi KAGEYAMA, Ryouta ISHIKAWA
  • Publication number: 20180202923
    Abstract: In a gas detection device and a gas detection method of the present invention, detection target gas is detected on the basis of reflected light of detection light (sensing light) frequency-modulated with respect to a center frequency and a distance to an object that generates the reflected light is measured. In the gas detection, an output signal of a light reception unit for receiving the reflected light is subjected to phase-sensitive detection. A synchronous detection timing of this phase-sensitive detection is adjusted on the basis of the measured distance to the object.
    Type: Application
    Filed: July 11, 2016
    Publication date: July 19, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Masashi KAGEYAMA, Hikaru NAGASAWA, Ryouta ISHIKAWA, Kyuichiro IMADE
  • Publication number: 20180164211
    Abstract: In a gas detection device and a gas detection method of the present invention, frequency-modulated detection light is irradiated while being scanned, a light reception output signal obtained by receiving reflected light of the detection light is subjected to phase-sensitive detection, a resulting detection output signal is sampled, and detection target gas GA is detected on the basis of a sampling result. A modulation frequency of the detection light is controlled on the basis of a scanning speed.
    Type: Application
    Filed: July 11, 2016
    Publication date: June 14, 2018
    Applicant: Konica Minolta, Inc.
    Inventors: Masashi KAGEYAMA, Hikaru NAGASAWA, Ryouta ISHIKAWA, Kyuichiro IMADE
  • Publication number: 20170219696
    Abstract: An object detection device includes a first optical transceiver that generates a first beam flux and receives a scattered portion of the first beam flux, a second optical transceiver that generates a second beam flux and receives a scattered portion of the second beam flux, and a mirror unit that rotates around a rotation axis. The first beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit, and the scattered portion of the first beam flux is generated by scattering of the first beam flux by an object. The scattered portion of the first beam flux is reflected by the mirror unit before being received by a light receiving portion of the first optical transceiver, and the second beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 3, 2017
    Applicant: Konica Minolta, Inc.
    Inventors: Shuhei Hayakawa, Hikaru Nagasawa, Masashi Kageyama, Ryouta Ishikawa
  • Publication number: 20080204590
    Abstract: The present invention provides a lens drive apparatus including: an image pickup lens group; a lens frame holding the image pickup lens group; an actuator comprising a magnet, a yoke, and a coil formed of an electric conductor; a casing housing the lense frame and the actuator therein; and at least one guide shaft parallel to an optical axis of the image pickup lens group. An electromagnetic force generated when electricity is applied to the coil, moves the lens frame and the image pickup lens along the optical axis.
    Type: Application
    Filed: October 24, 2007
    Publication date: August 28, 2008
    Applicant: Konica Minolta Opto, Inc.
    Inventors: Kazumi TOYA, Kenichi KUBO, Hikaru NAGASAWA
  • Publication number: 20070242573
    Abstract: An optical system driving device, includes: a carriage on which an objective lens is mounted; a guide for slidably supporting the carriage to guide the carriage in a tracking direction; at least a pair of coils which are attached to both sides of the carriage and which are wound in a direction perpendicular to a plane including the tracking direction and an optical axis of the objective lens; and at least a pair of magnet sections which are opposed to the coils so as to sandwich the carriage, wherein each of the pair of magnet sections has a permanent magnet in which two magnetic poles are arranged in a direction perpendicular to the plane including the tracking direction and the optical axis of the objective lens, and the two magnetic poles of one permanent magnet are arranged in an opposite direction of the two poles of the other permanent magnet.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Applicant: Konica Minolta Opto, Inc.
    Inventors: Hikaru Nagasawa, Hiroshi Aso