Patents by Inventor Eiji Takeuchi

Eiji Takeuchi 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: 20240135574
    Abstract: In order to reduce the influence of a detected position error caused by a position estimation error factor on a road surface, an information processing device acquires an image, detects an object position in the image based on the image, transforms the object position in the image into an object position in world coordinates, calculates a reliability of the object position in the world coordinates, determines whether the object position is influenced by a position estimation error factor on a road surface, changes the reliability of the object position according to a result of the error factor presence determination, and estimates a speed of an object by using a past history of the object position in the world coordinates and a past history of the reliability after the change.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Inventors: Akira GOTODA, Eiji TAKEUCHI
  • Patent number: 11940347
    Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: March 26, 2024
    Assignees: DENSO CORPORATION, NAGANO KEIKI CO., LTD.
    Inventors: Hiroshi Kodama, Naoki Yoshida, Kaori Miyashita, Eiji Takeda, Nobuaki Yamada, Yoshihiro Tomomatsu, Yasushi Yanagisawa, Yusuke Midorikawa, Shirou Kamanaru, Kenichi Yokoyama, Inao Toyoda, Hisayuki Takeuchi, Naohisa Niimi, Masao Takahashi, Yasutake Ura, Kouji Asano, Yukihiro Kamada
  • Patent number: 11650323
    Abstract: A meteorological lidar performs highly precise meteorological observation by primarily removing elastically scattered light and by detecting rotational Raman-scattered light without filtering it out. The meteorological lidar according to embodiments measures scattered light of a laser beam, and includes: a diffraction grating diffracting rotational Raman-scattered light contained in scattered light in accordance with the wavelength of rotational Raman-scattered light; a detector detecting the diffracted rotational Raman-scattered light; and a removing element primarily removing elastically scattered light of a specific wavelength contained in the scattered light.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 16, 2023
    Assignee: EKO INSTRUMENTS CO., LTD.
    Inventors: Toshikazu Hasegawa, Eiji Takeuchi, Makoto Tsukamoto, Masanori Yabuki
  • Publication number: 20220011233
    Abstract: An optical receiver for a meteorological lidar capable of accurate measurement of scattered light generated by emitting a laser beam of the UVC range (wavelength of 200 to 280 nm) into the air, without using a diffraction grating, is provided. The optical receiver for a meteorological lidar that emits a laser beam of a specific wavelength in the UVC range into the air and measures scattered light generated by the laser beam includes a reflector that reflects incident light to a predetermined direction, and a spectrometer that isolates a specific wavelength from incident light from the reflector, wherein the spectrometer includes interference filters.
    Type: Application
    Filed: December 25, 2019
    Publication date: January 13, 2022
    Applicant: EKO INSTRUMENTS CO., LTD.
    Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
  • Publication number: 20210389471
    Abstract: A meteorological lidar performs highly precise meteorological observation by primarily removing elastically scattered light and by detecting rotational Raman-scattered light without filtering it out. The meteorological lidar according to embodiments measures scattered light of a laser beam, and includes: a diffraction grating diffracting rotational Raman-scattered light contained in scattered light in accordance with the wavelength of rotational Raman-scattered light; a detector detecting the diffracted rotational Raman-scattered light; and a removing element primarily removing elastically scattered light of a specific wavelength contained in the scattered light.
    Type: Application
    Filed: October 15, 2019
    Publication date: December 16, 2021
    Applicant: EKO INSTRUMENTS CO., LTD.
    Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
  • Publication number: 20210333363
    Abstract: A meteorological lidar capable of measuring vertical distributions of temperature, water vapor concentration, aerosol, wind direction/wind speed, ozone concentration, CO2 concentration, etc., stably and continuously day and night is provided. A meteorological lidar that emits a laser beam of a specific wavelength into the air and measures scattered light generated by the laser beam includes an optical system that emits a laser beam into the air, and a dust-proof part that makes an enclosing space of the optical system clean.
    Type: Application
    Filed: October 7, 2019
    Publication date: October 28, 2021
    Applicant: EKO INSTRUMENTS CO., LTD.
    Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
  • Patent number: 10551355
    Abstract: Provided are a highly reliable probe including a light reflecting layer, which is resistant to the falling off of the light reflecting layer, and an information obtaining apparatus using the same. The probe includes: an element including at least one cell, each cell including a first electrode provided on a substrate, and a vibration membrane including a second electrode provided across a gap from the first electrode; an acoustic impedance matching layer disposed above the element; and a light reflecting layer. The light reflecting layer is fixed to the substrate via an adhesive layer.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: February 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Eiji Takeuchi, Yoshio Hotta
  • Publication number: 20190339604
    Abstract: An optical unit according to one aspect of the present invention includes a substrate, and a fluorescent layer provided on the substrate. The fluorescent layer includes an adhered portion adhered to the substrate and a non-adhered portion that is not adhered to the substrate. The substrate has a concave portion containing an air gap and an adhesive. The adhered portion is part in the fluorescent layer corresponding to a region where the adhesive is provided. An end of the fluorescent layer is located outside the concave portion.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Inventor: Eiji Takeuchi
  • Patent number: 10323940
    Abstract: The invention provides a tilt angle measuring device, which comprises a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter the free liquid surface, a photodetector for receiving the detection light reflected on the free liquid surface and a signal processing unit for detecting a tilt of the free liquid surface based on a detection signal from the photodetector, wherein the signal processing unit sets a detection light storage time of the photodetector so that an error incidence rate of the detection signal is a predetermined value.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: June 18, 2019
    Assignee: TOPCON Corporation
    Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
  • Patent number: 10139224
    Abstract: The present invention provides a measuring device, which comprises a leveling unit, a measuring device main body provided on the leveling unit, a control unit, a first tilt angle measuring device for detecting a horizontality with high accuracy, and a second tilt angle measuring device for detecting a tilt angle in a wider range than a range of the first tilt angle measuring device and having a higher responsiveness than a responsiveness of the first tilt angle measuring device, wherein the control unit, the first tilt angle measuring device and the second tilt angle measuring device are provided in the measuring device main body and wherein the control unit drives the leveling unit based on a detection result of the second tilt angle measuring device, performs a rough leveling until a tilt angle detected by the second tilt angle measuring device reaches within a range in which the first tilt angle measuring device is capable of detecting and levels the measuring device main body horizontally based on a detec
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 27, 2018
    Assignee: TOPCON Corporation
    Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
  • Patent number: 9968263
    Abstract: A probe capable of reducing positional displacement of an acoustic lens from a capacitive transducer is provided. The probe includes a transducer having elements and extraction electrodes of the elements, flexible wiring boards having wiring electrically connected to the extraction electrodes, and an acoustic lens having stepped portions which is provided on the elements. The acoustic lens is butted against end portions of the flexible wiring boards at the stepped portions and fixed.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: May 15, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Eiji Takeuchi
  • Publication number: 20180106767
    Abstract: Provided are a highly reliable probe including a light reflecting layer, which is resistant to the falling off of the light reflecting layer, and an information obtaining apparatus using the same. The probe includes: an element including at least one cell, each cell including a first electrode provided on a substrate, and a vibration membrane including a second electrode provided across a gap from the first electrode; an acoustic impedance matching layer disposed above the element; and a light reflecting layer. The light reflecting layer is fixed to the substrate via an adhesive layer.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 19, 2018
    Inventors: Eiji TAKEUCHI, Yoshio HOTTA
  • Publication number: 20170108334
    Abstract: The present invention provides a measuring device, which comprises a leveling unit, a measuring device main body provided on the leveling unit, a control unit, a first tilt angle measuring device for detecting a horizontality with high accuracy, and a second tilt angle measuring device for detecting a tilt angle in a wider range than a range of the first tilt angle measuring device and having a higher responsiveness than a responsiveness of the first tilt angle measuring device, wherein the control unit, the first tilt angle measuring device and the second tilt angle measuring device are provided in the measuring device main body and wherein the control unit drives the leveling unit based on a detection result of the second tilt angle measuring device, performs a rough leveling until a tilt angle detected by the second tilt angle measuring device reaches within a range in which the first tilt angle measuring device is capable of detecting and levels the measuring device main body horizontally based on a detec
    Type: Application
    Filed: October 18, 2016
    Publication date: April 20, 2017
    Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
  • Publication number: 20170108333
    Abstract: The invention provides a tilt angle measuring device, which comprises a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter the free liquid surface, a photodetector for receiving the detection light reflected on the free liquid surface and a signal processing unit for detecting a tilt of the free liquid surface based on a detection signal from the photodetector, wherein the signal processing unit sets a detection light storage time of the photodetector so that an error incidence rate of the detection signal is a predetermined value.
    Type: Application
    Filed: October 18, 2016
    Publication date: April 20, 2017
    Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
  • Publication number: 20150073280
    Abstract: A probe capable of reducing positional displacement of an acoustic lens from a capacitive transducer is provided. The probe includes a transducer having elements and extraction electrodes of the elements, flexible wiring boards having wiring electrically connected to the extraction electrodes, and an acoustic lens having stepped portions which is provided on the elements. The acoustic lens is butted against end portions of the flexible wiring boards at the stepped portions and fixed.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Inventor: Eiji Takeuchi
  • Patent number: 8974357
    Abstract: The invention provides a vertical turret lathe capable of preventing an inner diameter turning tool attached to a turret tool rest from interfering with a workpiece during machining of the outer diameter of the workpiece. The vertical turret lathe comprises a work table that holds a workpiece W1 and rotates, and a working head 40 having a turret tool rest 50 and capable of moving in X-axis and Z-axis directions. A tool holder 70 for holding an inner diameter turning tool T2 via hydraulic pressure is attached to a part of the tool supporting portions 60 of the turret tool rest. The automatic tool changer apparatus 100 includes a turret-type tool magazine 120 and pistons 160 and 162, which mechanically press the pins 74 and 76 of the tool holder 70 and clamp or unclamp the tool T2.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 10, 2015
    Assignee: Yamazaki Mazak Corporation
    Inventors: Minoru Kitayama, Naoya Tanaka, Eiji Takeuchi, Toraharu Ryuta, Hyunkoo Park
  • Patent number: 8960716
    Abstract: The housing structure for a curtain airbag includes: an airbag body; an inflator configured to inflate and deploy the airbag body; a bracket configured to fix a base end portion of the airbag body to a roof side or a front pillar; and a tether configured to anchor a front end portion of the airbag body to the front pillar. The airbag body is wound into a long narrow shape and covered with a roof lining, and the tether and a portion fixed by the tether are covered with a front pillar trim. The bracket is disposed adjacent to a joint portion of the roof lining and the front pillar trim and has an extension piece extending along the front pillar. An end portion of the airbag body wound together with the tether or a portion of the tether adjacent to the end portion is fixed to the extension piece with a releasable binding member.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: February 24, 2015
    Assignee: Suzuki Motor Corporation
    Inventor: Eiji Takeuchi
  • Publication number: 20150016221
    Abstract: A transducer includes a plurality of elements each including at least one cell structured in such a way that a diaphragm including one of a first electrode and a second electrode disposed facing each other via a space is vibratably supported, bias wiring for supplying a bias voltage to the first electrode to provide a potential difference between the first and the second electrodes, and for electrically connecting the first electrodes of the elements to each other, and signal wiring lines each connected to a different one of the elements. The bias wiring includes a plurality of branch wiring lines to each of which the first electrodes of a part of the elements are connected, a plurality of first common wiring lines for connecting the branch wiring lines to each other, and a second common wiring line for connecting the first common wiring lines to each other.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Eiji Takeuchi, Takahiro Akiyama, Kazutoshi Torashima
  • Publication number: 20140265272
    Abstract: The housing structure for a curtain airbag includes: an airbag body; an inflator configured to inflate and deploy the airbag body; a bracket configured to fix a base end portion of the airbag body to a roof side or a front pillar; and a tether configured to anchor a front end portion of the airbag body to the front pillar. The airbag body is wound into a long narrow shape and covered with a roof lining, and the tether and a portion fixed by the tether are covered with a front pillar trim. The bracket is disposed adjacent to a joint portion of the roof lining and the front pillar trim and has an extension piece extending along the front pillar. An end portion of the airbag body wound together with the tether or a portion of the tether adjacent to the end portion is fixed to the extension piece with a releasable binding member.
    Type: Application
    Filed: January 27, 2014
    Publication date: September 18, 2014
    Applicant: SUZUKI MOTOR CORPORATION
    Inventor: Eiji Takeuchi
  • Patent number: 8737629
    Abstract: An audio signal processing system includes: a receiving section which receives a plurality of audio signals, a process period specifying section which specifies a silent period in other audio signals except a particular audio signal that are received by the receiving section, respectively, a sound volume level adjusting section which decreases a sound volume level of the particular audio signal, in a period specified by the process period specifying section as a silent period in any of the other audio signals, and an outputting section which outputs the particular audio signal whose sound volume level is adjusted by the sound volume level adjusting section.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: May 27, 2014
    Assignee: Yamaha Corporation
    Inventor: Eiji Takeuchi