Patents by Inventor Naoshi Yamaguchi

Naoshi Yamaguchi 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: 20210094526
    Abstract: The present invention provides an apparatus for diagnosing a failure in a negative pressure sensor, a method for diagnosing a failure in a negative pressure sensor, and a brake apparatus capable of preventing or cutting down a reduction in a frequency at which an abnormality in the negative pressure sensor is diagnosed. The apparatus for diagnosing the failure in the negative pressure sensor includes a change amount monitoring portion configured to monitor a change amount of a detection signal of the negative pressure sensor when a brake pedal is returned after being pressed, and an abnormality determination portion configured to determine that the negative pressure sensor is abnormal if the change amount is a predetermined change amount or smaller.
    Type: Application
    Filed: September 11, 2017
    Publication date: April 1, 2021
    Inventor: Naoshi YAMAGUCHI
  • Publication number: 20200001386
    Abstract: A reflow furnace that can reduce both the flux clinging defect in a circuit board, and the thermal cracking defect in an electronic component has a heat zone in which a circuit board with a mounted electronic component is heated, and a cooling zone in which the heated circuit board is cooled, and includes: a shield disposed between the heat zone and the cooling zone and having an opening for passage of the circuit board; and a tunnel-like cover physically coupled to the opening and extending along a transport direction of the circuit board.
    Type: Application
    Filed: February 13, 2019
    Publication date: January 2, 2020
    Inventors: NAOSHI YAMAGUCHI, TOSHIRO KANDA, YASUYUKI TAKANO, KOICHI NAGAI
  • Publication number: 20190388991
    Abstract: A method and an apparatus for collecting flux in a way that improves the cleanliness inside a furnace by improving flux collection efficiency, reduces flux viscosity to maintain a liquid state even at ordinary temperature, and makes the flux collection unit more easily serviceable includes a rosin particle contained in an atmosphere gas, and vapor of a solvent or an atomized solvent particle are mixed in a mixing section provided upstream of a flux collection unit-side inlet, and a gas containing a mixed particle is cleaned by means of electrostatic precipitation. The solvent particle adheres to the rosin particle, and forms an aggregate of large particle size that can be more easily charged by corona discharge. This improves the flux collection rate of electrostatic precipitation collection, and, because the rosin particle dissolves in the solvent particle, the collected flux can have reduced viscosity.
    Type: Application
    Filed: February 12, 2019
    Publication date: December 26, 2019
    Inventors: NAOSHI YAMAGUCHI, KOICHI NAGAI, YASUYUKI TAKANO, TOSHIRO KANDA
  • Patent number: 10466168
    Abstract: Provided is a resin determination method including: placing an object on a placement surface with a diffusion reflectance of equal to or greater than 80% in an effective wavelength region of infrared light and with arithmetic mean roughness of equal to or greater than 0.25 ?m and equal to or less than 25 ?m; irradiating the object with infrared light; receiving reflected light from the object that has been irradiated with the infrared light; and determining a resin type based on a reflection spectrum or an absorption spectrum obtained by the reflected light.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: November 5, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shingo Hamada, Noriyuki Suzuki, Naoya Miyaji, Naoshi Yamaguchi
  • Publication number: 20190128801
    Abstract: Provided is a resin determination method including: placing an object on a placement surface with a diffusion reflectance of equal to or greater than 80% in an effective wavelength region of infrared light and with arithmetic mean roughness of equal to or greater than 0.25 and equal to or less than 25; irradiating the object with infrared light; receiving reflected light from the object that has been irradiated with the infrared light; and determining a resin type based on a reflection spectrum or an absorption spectrum obtained by the reflected light.
    Type: Application
    Filed: October 11, 2018
    Publication date: May 2, 2019
    Inventors: SHINGO HAMADA, NORIYUKI SUZUKI, NAOYA MIYAJI, NAOSHI YAMAGUCHI
  • Publication number: 20170343472
    Abstract: A resin is irradiated with an infrared ray, and a reflected ray from the resin irradiated with the infrared ray is received. In a reflection or absorption spectrum obtained by the reflected ray, a difference of a reflection intensity in a spectrum between a first wave number band of 1340 cm?1 to 1350 cm?1, inclusive, and a second wave number band of 1300 cm?1 to 1340 cm?1, inclusive, is calculated. It is determined whether or not a specific bromine-based flame retardant is contained in the resin, by using the calculated difference of reflection intensity in the spectrum.
    Type: Application
    Filed: May 13, 2017
    Publication date: November 30, 2017
    Inventors: SHINGO HAMADA, NOBUHIKO MIYAMAE, NAOSHI YAMAGUCHI
  • Patent number: 9808835
    Abstract: At a conveyor forefront portion, velocity distribution of an airflow is provided. The velocity distribution is wind velocity distribution in a vertical direction of an airflow from a surface of an upper rectifying plate to a surface of a conveyor at the conveyor forefront portion, and has a maximum value in a range of less than 10 mm downward of the vertical direction from the rectifying plate surface. Moreover, a ratio obtained by dividing the maximum value by a wind velocity in the vicinity of the surface of the conveyor is 4 or more, and 12 or less. In a range other than the range of less than 10 mm, the airflow has a wind velocity equal to the wind velocity in the vicinity of the surface of the conveyor.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: November 7, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Naoshi Yamaguchi, Masatoshi Miyasaka, Shingo Hamada
  • Publication number: 20160332200
    Abstract: At a conveyor forefront portion, velocity distribution of an airflow is provided. The velocity distribution is wind velocity distribution in a vertical direction of an airflow from a surface of an upper rectifying plate to a surface of a conveyor at the conveyor forefront portion, and has a maximum value in a range of less than 10 mm downward of the vertical direction from the rectifying plate surface. Moreover, a ratio obtained by dividing the maximum value by a wind velocity in the vicinity of the surface of the conveyor is 4 or more, and 12 or less. In a range other than the range of less than 10 mm, the airflow has a wind velocity equal to the wind velocity in the vicinity of the surface of the conveyor.
    Type: Application
    Filed: April 15, 2016
    Publication date: November 17, 2016
    Inventors: NAOSHI YAMAGUCHI, MASATOSHI MIYASAKA, SHINGO HAMADA
  • Patent number: 9397242
    Abstract: The present invention addresses the problem of providing a novel silicon substrate having a textured surface by dry-etching the surface of a silicon substrate having (111) orientation and thereby forming a texture thereon. The present invention provides a silicon substrate having (111) orientation, said silicon substrate having a textured surface that includes multiple protrusions which each comprise three slant faces and have heights of 100 to 8000 nm. This process for producing a silicon substrate includes: a step of preparing a silicon substrate having (111) orientation; and a step of blowing an etching gas onto the surface of the silicon substrate, said etching gas containing one or more gases selected from the group consisting of ClF3, XeF2, BrF3, BrF5 and NF3.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: July 19, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasushi Taniguchi, Shigeru Sankawa, Sr., Kouji Arai, Hiroshi Tanabe, Ichiro Nakayama, Naoshi Yamaguchi
  • Publication number: 20160175889
    Abstract: A separation apparatus includes a first air blower, a plurality of regulating plates, and a second air blower. The first air blower generates a first airflow toward a jumping direction of a separation target at a tip end of the conveyor. The first airflow has a wind speed that matches a transporting speed of a conveyor. The regulating plates are disposed along a flight path of the separation target. The second air blower generates a second airflow toward the flight path from below the flight path.
    Type: Application
    Filed: October 27, 2015
    Publication date: June 23, 2016
    Inventors: NAOSHI YAMAGUCHI, MASATOSHI MIYASAKA, SHINGO HAMADA
  • Publication number: 20160167699
    Abstract: Detection of any fault in the gain of output of a yaw rate sensor is determined as possible if an amount of change in the gain of a yaw rate detected by a yaw rate sensor relative to a yaw rate calculated from a steering angle detected by a steering angle sensor is lower than or equal to a predetermined value. If the detection of any fault in the gain of output of the yaw rate sensor is determined as possible, detection of any fault in the gain of output of the yaw rate sensor is performed.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 16, 2016
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Naoshi YAMAGUCHI
  • Publication number: 20160163128
    Abstract: Provided is a vehicle control device improved in possibility of misdetection of a sensor failure. It is determined that output offset abnormality detection with respect to a steering angle sensor, a yaw rate sensor, and a lateral acceleration sensor can be performed when a tire slip amount is equal to or smaller than a predetermined value, and when it is determined that the output offset abnormality detection of each sensor can be performed, the output offset abnormality detection with respect to each sensor is performed.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 9, 2016
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Naoshi YAMAGUCHI
  • Publication number: 20140305590
    Abstract: A non-plasma dry etching apparatus forms textures by processing plural substrates at the same time, and all substrates and textures in respective substrate planes are formed to be uniform at the time of processing and all substrates and values of the reflectance in respective substrate planes are formed to be uniform as well as size reduction of equipment. The substrates are placed in plural stages so as to be parallel to the flow of a process gas in a reaction chamber. The uniform etching is realized by installing turbulent flow generation blades in the upstream side of the flow.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: NAOSHI YAMAGUCHI, HIROSHI TANABE, YASUSHI TANIGUCHI
  • Publication number: 20140246092
    Abstract: A silicon substrate having a new shape on the opposite surface side of textures can be manufactured at low costs by performing high-quality washing to the silicon substrate with a substrate plane orientation (100) having a texture structure by using a gas etching method, thereby improving use efficiency of light. A silicon substrate is provided having the substrate plane orientation (100) with textures, in which fine rectangular-shaped unevenness is formed in a ripple shape on the opposite side surface of the texture-formed surface, and the depth of concave portions therein is 10 to 200 nm.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Applicant: Panasonic Corporation
    Inventors: KOUJI ARAI, NAOSHI YAMAGUCHI, HIROSHI TANABE
  • Publication number: 20140216541
    Abstract: A silicon substrate includes a texture structure in which quadrangular pyramid-shaped first textures having a (111) plane on slopes are formed on a surface of the silicon substrate having a plane orientation (100) and second textures having etch pits surrounded by three planes of the (100) plane, a (010) plane and a (001) plane are formed on surfaces of the first textures.
    Type: Application
    Filed: January 27, 2014
    Publication date: August 7, 2014
    Applicant: Panasonic Corporation
    Inventors: Naoshi YAMAGUCHI, Hiroshi TANABE
  • Publication number: 20140166206
    Abstract: A non-plasma dry etching apparatus is capable of forming textures uniformly only on one side of a silicon substrate. The non-plasma dry etching apparatus includes a stage on which a silicon substrate is placed is used as a base including plural layers. The plural layers include an electrostatic chuck layer, a heat-resistant glass layer and a space layer from the side on which the silicon substrate is placed.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 19, 2014
    Applicant: Panasonic Corporation
    Inventors: NAOSHI YAMAGUCHI, HIROSHI TANABE, ICHIRO NAKAYAMA
  • Publication number: 20140020750
    Abstract: The present invention addresses the problem of providing a novel silicon substrate having a textured surface by dry-etching the surface of a silicon substrate having (111) orientation and thereby forming a texture thereon. The present invention provides a silicon substrate having (111) orientation, said silicon substrate having a textured surface that includes multiple protrusions which each comprise three slant faces and have heights of 100 to 8000 nm. This process for producing a silicon substrate includes: a step of preparing a silicon substrate having (111) orientation; and a step of blowing an etching gas onto the surface of the silicon substrate, said etching gas containing one or more gases selected from the group consisting of ClF3, XeF2, BrF3, BrF5 and NF3.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 23, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yasushi Taniguchi, Shigeru Sankawa, Kouji Arai, Hiroshi Tanabe, Ichiro Nakayama, Naoshi Yamaguchi
  • Patent number: 7703561
    Abstract: In order to reduce a steering torque during stoppage of a vehicle, according to the invention, opposite drive torques in normal and reverse directions are applied to a left rear wheel and a right rear wheel when a driver steers a steering wheel in a state where the vehicle stops, whereby a moment to turn the vehicle is generated, and an assist torque for steering the steering wheel is generated.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: April 27, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Miyajima, Toru Takahashi, Naoshi Yamaguchi, Makoto Yamakado, Masanori Ichinose, Takehiko Kowatari, Atsushi Yokoyama
  • Patent number: 7631722
    Abstract: In a power steering system, the steering state of wheels is detected based on the steering speed to judge as to whether the steering state is in turning of the steering wheel or holding of steering speed is the steering wheels. At the time of the steering operation state, the control is executed so that a difference between a torque command value to an electric motor and the actual torque thereof will become smaller. Also, at the time of the holding operation state, the control is executed so that a difference between the revolution speed of the electric motor and a revolution-speed command value thereto will become smaller.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: December 15, 2009
    Inventors: Ayumu Miyajima, Makoto Yamakado, Toru Takahashi, Naoshi Yamaguchi, Yoshitaka Sugiyama
  • Patent number: 7584816
    Abstract: There is provided a power steering system including an electric motor for generating a steering force in response to an command value, and a controller for generating the command value to the electric motor. Here, the controller generates the command value in correspondence with steering state of wheels, thereby controlling torque or rotation number of the electric motor.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: September 8, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Miyajima, Makoto Yamakado, Tooru Takahashi, Yoshitaka Sugiyama, Naoshi Yamaguchi