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).
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Publication number: 20240135574Abstract: 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: ApplicationFiled: October 18, 2023Publication date: April 25, 2024Inventors: Akira GOTODA, Eiji TAKEUCHI
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Patent number: 11940347Abstract: 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: GrantFiled: October 22, 2021Date of Patent: March 26, 2024Assignees: 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
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Patent number: 11650323Abstract: 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: GrantFiled: October 15, 2019Date of Patent: May 16, 2023Assignee: EKO INSTRUMENTS CO., LTD.Inventors: Toshikazu Hasegawa, Eiji Takeuchi, Makoto Tsukamoto, Masanori Yabuki
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Publication number: 20220011233Abstract: 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: ApplicationFiled: December 25, 2019Publication date: January 13, 2022Applicant: EKO INSTRUMENTS CO., LTD.Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
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Publication number: 20210389471Abstract: 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: ApplicationFiled: October 15, 2019Publication date: December 16, 2021Applicant: EKO INSTRUMENTS CO., LTD.Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
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Publication number: 20210333363Abstract: 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: ApplicationFiled: October 7, 2019Publication date: October 28, 2021Applicant: EKO INSTRUMENTS CO., LTD.Inventors: Toshikazu HASEGAWA, Eiji TAKEUCHI, Makoto TSUKAMOTO, Masanori YABUKI
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Patent number: 10551355Abstract: 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: GrantFiled: March 22, 2016Date of Patent: February 4, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Eiji Takeuchi, Yoshio Hotta
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Publication number: 20190339604Abstract: 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: ApplicationFiled: July 15, 2019Publication date: November 7, 2019Inventor: Eiji Takeuchi
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Patent number: 10323940Abstract: 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: GrantFiled: October 18, 2016Date of Patent: June 18, 2019Assignee: TOPCON CorporationInventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
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Patent number: 10139224Abstract: 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 detecType: GrantFiled: October 18, 2016Date of Patent: November 27, 2018Assignee: TOPCON CorporationInventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
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Patent number: 9968263Abstract: 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: GrantFiled: September 4, 2014Date of Patent: May 15, 2018Assignee: Canon Kabushiki KaishaInventor: Eiji Takeuchi
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Publication number: 20180106767Abstract: 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: ApplicationFiled: March 22, 2016Publication date: April 19, 2018Inventors: Eiji TAKEUCHI, Yoshio HOTTA
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Publication number: 20170108334Abstract: 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 detecType: ApplicationFiled: October 18, 2016Publication date: April 20, 2017Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
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Publication number: 20170108333Abstract: 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: ApplicationFiled: October 18, 2016Publication date: April 20, 2017Inventors: Masaki Kamiki, Goro Iwasaki, Shinji Yamaguchi, Satoshi Yanobe, Eiji Takeuchi, Yosuke Okudaira
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Publication number: 20150073280Abstract: 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: ApplicationFiled: September 4, 2014Publication date: March 12, 2015Inventor: Eiji Takeuchi
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Patent number: 8974357Abstract: 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: GrantFiled: March 26, 2010Date of Patent: March 10, 2015Assignee: Yamazaki Mazak CorporationInventors: Minoru Kitayama, Naoya Tanaka, Eiji Takeuchi, Toraharu Ryuta, Hyunkoo Park
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Patent number: 8960716Abstract: 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: GrantFiled: January 27, 2014Date of Patent: February 24, 2015Assignee: Suzuki Motor CorporationInventor: Eiji Takeuchi
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Publication number: 20150016221Abstract: 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: ApplicationFiled: July 8, 2014Publication date: January 15, 2015Inventors: Eiji Takeuchi, Takahiro Akiyama, Kazutoshi Torashima
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Publication number: 20140265272Abstract: 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: ApplicationFiled: January 27, 2014Publication date: September 18, 2014Applicant: SUZUKI MOTOR CORPORATIONInventor: Eiji Takeuchi
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Patent number: 8737629Abstract: 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: GrantFiled: September 24, 2007Date of Patent: May 27, 2014Assignee: Yamaha CorporationInventor: Eiji Takeuchi