Patents by Inventor Keiji Hayashi

Keiji Hayashi 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: 20240123467
    Abstract: A method for coating a vehicle body on which an electrodeposition coating has been performed includes in this order: applying a first base coating material over an outer surface of the vehicle body to form a first base layer; applying a mixture of a second base coating material and a first curing agent over an inner surface of the vehicle body to form an inner second base layer; applying the second base coating material over the first base layer that has not been baked to form an outer second base layer; applying a clear coating material over the inner second base layer and the outer second base layer to form a clear layer; and baking the first base layer, the inner second base layer, the outer second base layer, and the clear layer for curing thereof.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 18, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji AMBO, Junya OGAWA, Hisao HAYASHI
  • Patent number: 11945984
    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 2, 2024
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeshi Nakano, Keiji Hayashi, Souya Jo, Shogo Sasaki, Kenichi Kataoka
  • Publication number: 20230148873
    Abstract: A physiological state index calculation system, a physiological state index calculation method, and a non-transitory computer readable medium for capturing subtle changes in a physiological state of a living body are provided. The physiological state index calculation system includes a band-pass filter that filters cerebral blood flow waveform information obtained from a cerebral blood flow of a living body in at least one frequency band, and a complex number conversion unit configured to convert the filtered cerebral blood flow waveform information into a complex number for at least one frequency band. The cerebral blood flow waveform information converted into a complex number by the complex number conversion unit is an oscillator that reflects a physiological state of a living body.
    Type: Application
    Filed: October 20, 2022
    Publication date: May 18, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji HAYASHI, Hitoshi YAMADA, Yuhei YAMAGUCHI, Chie IMAMURA
  • Publication number: 20220361790
    Abstract: A mental and physical condition estimation system according to the present disclosure includes: a heart rate information acquisition unit for acquiring heart rate information that is information related to a heart rate of a subject person; a heart rate variability calculation unit for calculating heart rate variability of a very low frequency component (VLF) from the acquired heart rate information; and a mental and physical condition estimation unit for estimating a concentration and effort state of the subject person from a calculated value of the heart rate variability.
    Type: Application
    Filed: March 21, 2022
    Publication date: November 17, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kiyomi SAKAKIBARA, Hitoshi YAMADA, Yuhei YAMAGUCHI, Chie IMAMURA, Keiji HAYASHI
  • Patent number: 11492520
    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 8, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeshi Nakano, Keiji Hayashi, Souya Jo, Shogo Sasaki, Kenichi Kataoka
  • Publication number: 20220160288
    Abstract: An autonomic nerve index calculation system for calculating an autonomic nerve index of a living body according to an embodiment of the present disclosure generates pulse wave waveform data using at least one pulse wave signal of the living body, filters the generated pulse wave waveform data in at least one predetermined frequency band, converts the filtered pulse wave waveform data into a complex number and calculate pulse wave complex waveform data of the at least one frequency band, and calculates the autonomic nerve index of the living body in the at least one frequency band based on the calculated pulse wave complex waveform data.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Hayashi, Hitoshi Yamada, Yuhei Yamaguchi, Kyosuke Arai
  • Publication number: 20200291269
    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. A frictional force of the pressure sensitive adhesive layer measured with a frictional force microscope at a frequency of 5 Hz is preferably 2 to 5 times a frictional force at a frequency of 0.1 Hz. After photocuring of the pressure sensitive adhesive layer, a frictional force of a photocured pressure sensitive adhesive layer measured with the frictional force microscope at a frequency of 5 Hz is preferably not less than 5 times a frictional force measured at a frequency of 0.1 Hz.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 17, 2020
    Inventors: Takeshi NAKANO, Keiji HAYASHI, Souya JO, Shogo SASAKI, Kenichi KATAOKA
  • Publication number: 20200231846
    Abstract: A reinforcing film comprises a pressure sensitive adhesive layer laminated and fixed on a principal surface of a film substrate. The pressure sensitive adhesive layer is formed of a photocurable composition containing a photocurable agent and a base polymer having a crosslinked structure. The gel fraction of the photocurable composition is preferably 60% or more. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer is preferably 1×104 to 1.2×105 Pa. The shear storage elastic modulus at 25° C. of the pressure sensitive adhesive layer after photocuring is preferably 1.5×105 to 2×106 Pa.
    Type: Application
    Filed: September 18, 2018
    Publication date: July 23, 2020
    Inventors: Takeshi NAKANO, Keiji HAYASHI, Souya JO, Shogo SASAKI, Kenichi KATAOKA
  • Publication number: 20190177637
    Abstract: [Technical Problem] An object is to provide a sliding system that allows the friction coefficient at a sliding part to be considerably reduced by means of a novel combination of a chromium nitride film and a lubricant oil. [Solution to Problem] The sliding system of the present invention comprises: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces comprises a coating surface of a specific chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound comprising molybdenum dialkyldithiophosphate (Mo-DTP). When the chromium nitride film as a whole is 100 at % (referred simply to as “%”), the chromium nitride film comprises 40-65% of Cr and 35-55% of N and has a relative surface area of 15-85%.
    Type: Application
    Filed: November 12, 2018
    Publication date: June 13, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki MORI, Shigeru HOTTA, Mamoru TOHYAMA, Masaru OKUYAMA, Keiji HAYASHI, Kazuyoshi MANABE
  • Patent number: 10301568
    Abstract: [Technical Problem] An object is to provide a sliding system which can achieve both the reduced friction and the enhanced wear resistance by means of a novel combination of a sliding film and a lubricant oil. [Solution to Problem] The sliding system of the present invention comprises: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil interposed between the sliding surfaces facing each other. At least one of the sliding surfaces comprises a coating surface of a crystalline chromium carbide film. The lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo. When the chromium carbide film as a whole is 100 at %, the chromium carbide film contains 40-75 at % of Cr.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 28, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mori, Mamoru Tohyama, Masaru Okuyama, Keiji Hayashi, Naoya Ikeda
  • Publication number: 20190100714
    Abstract: A sliding system includes a pair of sliding members having opposing sliding surfaces adapted to move relative to each other, and a lubricating oil interposed between the opposing sliding surfaces. Here, at least one of the sliding surfaces is a covered surface covered with a specific chromium nitride film. The lubricating oil contains an oil-soluble molybdenum compound formed of a molybdenum dialkyldithiocarbamate. In the chromium nitride film, when an amount of atoms constituting the entire chromium nitride film is set as 100 atom %, there is 32 atom % to 47 atom % of N, the balance is Cr, and a relative area which is an area ratio of the (111) plane with respect to the (200) plane obtained when the chromium nitride film is analyzed by X-ray diffraction is 20% to 30%.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 4, 2019
    Inventors: Shigeru HOTTA, Hiroyuki MORI, Mamoru TOHYAMA, Masaru OKUYAMA, Keiji HAYASHI, Kazuyoshi MANABE
  • Patent number: 10030207
    Abstract: A sliding machine includes: a pair of sliding members having sliding surfaces that oppose each other and are able to move relative to each other; and a lubricating oil which is able to be interposed between the opposed sliding surfaces, in which at least one of the sliding surfaces is covered with a chromium (Cr)-containing amorphous carbon film (chromium-coating DLC), and the lubricating oil contains an oil-soluble molybdenum compound having a chemical structure formed from a trinuclear material of molybdenum (Mo). Specifically, the chromium-coating DLC contains, when the entirety of the film is assumed to be 100 at. %, 1% to 49% of Cr, 0% to 30% of hydrogen (H), carbon (C) as a remainder, and impurities. The lubricating oil contains 5 ppm to 800 ppm of the oil-soluble molybdenum compound in terms of Mo mass ratio with respect to the entirety of the lubricating oil.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: July 24, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hiroyuki Mori, Mamoru Tohyama, Masaru Okuyama, Keiji Hayashi, Naoya Ikeda
  • Patent number: 9790447
    Abstract: [Technical Problem] An object is to provide a sliding system which can drastically reduce the friction coefficient on a sliding portion by means of a novel combination of a chromium nitride film and a lubricant oil. [Solution to Problem] The sliding system according to the present invention includes: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces is formed as a coating surface of a chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mori, Mamoru Tohyama, Masaru Okuyama, Keiji Hayashi, Naoya Ikeda
  • Publication number: 20170247625
    Abstract: [Technical Problem] An object is to provide a sliding system which can achieve both the reduced friction and the enhanced wear resistance by means of a novel combination of a sliding film and a lubricant oil. [Solution to Problem] The sliding system of the present invention comprises: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil interposed between the sliding surfaces facing each other. At least one of the sliding surfaces comprises a coating surface of a crystalline chromium carbide film. The lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo. When the chromium carbide film as a whole is 100 at %, the chromium carbide film contains 40-75 at % of Cr.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 31, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki MORI, Mamoru TOHYAMA, Masaru OKUYAMA, Keiji HAYASHI, Naoya IKEDA
  • Publication number: 20160251589
    Abstract: A composition for a lubricating film includes molybdenum disulfide particles which are dispersed, and a binding resin, and is a composition for coating a surface of a base material made of metal with a lubricating film in which the molybdenum disulfide particles are bound together by the binding resin. The composition for a lubricating film contains 50 mass % to 70 mass % of the molybdenum disulfide particles with respect to a total amount of the molybdenum disulfide particles and the binding resin. An average particle size of the molybdenum disulfide particles is in a range of 0.1 ?m to 3.0 ?m.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ART METAL MFG, CO., LTD., AKROS Co., Ltd.
    Inventors: Misato KISHI, Yoshio FUWA, Koji SAITO, Keiji HAYASHI, Ichiro YAMAGUCHI, Naoto KOYAMAISHI, Shinya TERADA, Nobuyuki FUJIWARA, Yuichiro KANAZAWA, Shin MAKINO, Keisuke MIYAMOTO, Masako JIMBO
  • Patent number: 9365794
    Abstract: A wet friction clutch—lubricant system wherein a wet friction clutch having a cellulose—based friction lining having a surface coating of silica based particles, or a device including such a clutch, is lubricated with a lubricant composition a major amount of oil of lubricating viscosity and minor effective amounts of performance enhancing additives including (a) ashless dispersant; (b) organic phosphorus compound and (c) borated detergents; and optionally, (d) an auxiliary friction modifier.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: June 14, 2016
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Joe R. Noles, Jr., Hirokazu Saito, Philip Skinner, Raymond F. Watts, Keiji Hayashi, Atsushi Suzuki, Koji Saito
  • Publication number: 20160115414
    Abstract: [Technical Problem] An object is to provide a sliding system which can drastically reduce the friction coefficient on a sliding portion by means of a novel combination of a chromium nitride film and a lubricant oil. [Solution to Problem] The sliding system according to the present invention includes: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces is formed as a coating surface of a chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo.
    Type: Application
    Filed: July 10, 2015
    Publication date: April 28, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki MORI, Mamoru TOHYAMA, Masaru OKUYAMA, Keiji HAYASHI, Naoya IKEDA
  • Publication number: 20160010021
    Abstract: A sliding machine includes: a pair of sliding members having sliding surfaces that oppose each other and are able to move relative to each other; and a lubricating oil which is able to be interposed between the opposed sliding surfaces, in which at least one of the sliding surfaces is covered with a chromium (Cr)-containing amorphous carbon film (chromium-coating DLC), and the lubricating oil contains an oil-soluble molybdenum compound having a chemical structure formed from a trinuclear material of molybdenum (Mo). Specifically, the chromium-coating DLC contains, when the entirety of the film is assumed to be 100 at. %, 1% to 49% of Cr, 0% to 30% of hydrogen (H), carbon (C) as a remainder, and impurities. The lubricating oil contains 5 ppm to 800 ppm of the oil-soluble molybdenum compound in terms of Mo mass ratio with respect to the entirety of the lubricating oil.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki MORI, Mamoru TOHYAMA, Masaru OKUYAMA, Keiji HAYASHI, Naoya IKEDA
  • Publication number: 20150362652
    Abstract: A backlight device includes an LED; a light guide plate that has a light-exiting surface provided at one plate surface, an opposite surface provided at a plate surface on the opposite side to the light-exiting surface, and a light-receiving side face provided at one side face, that is arranged such that the light-receiving side face faces the LED and that guides light from the LED; a chassis having a plate surface arranged so as to face the opposite surface and housing at least the LED and the light guide plate; and an optical sheet that is arranged so as to face the light-exiting surface, that provides light that has exited the light guide plate with an optical function and that has a bent portion that extends further toward the outside than an edge of the light-exiting surface and is bent toward the opposite surface side and as a result covers at least part of a side face of the light guide plate.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 17, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Keiji HAYASHI, Eiji NITTOU, Toshikazu MATSUKAWA, Nobuyuki NAKAMURA, Yoshitsugu KAWAHIGASHI, Takeshi SUZUKI
  • Patent number: 9212597
    Abstract: This invention provides a coolant composition for an internal combustion engine that can improve the energy efficiency of an internal combustion engine and a method for operating an internal combustion engine using such coolant composition. The coolant composition for an internal combustion engine of the invention has kinematic viscosity of 8.5 to 3,000 mm2/sec at 25° C. and 0.3 to 1.3 mm2/sec at 100° C. The method for operating an internal combustion engine of the invention is carried out with the use of such composition.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 15, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Hirai, Yuichi Shimasaki, Rentaro Kuroki, Syou Tomita, Minoru Yamashita, Kazuhiro Miyajima, Keiji Hayashi