Patents by Inventor Ryota Nakayama

Ryota Nakayama 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: 11884818
    Abstract: Polyamide pre-expanded particles of this disclosure have a peak temperature of a maximum endothermic peak of 150-275° C. on a DSC curve obtained while being heated from 30° C. to 280° C. at a heating rate of 10° C./min using a DSC. The width of the peak is 30-80° C. when a straight line approximating the DSC curve on a high-temperature side relative to the peak after an end of melting is used as a baseline. The width corresponds to a difference between an extrapolated melting start temperature which is a temperature at an intersection point between a tangent line at an inflection point of the peak on a low-temperature side and the baseline, and an extrapolated melting end temperature which is a temperature at an intersection point between a tangent line at an inflection point of the peak on a high-temperature side and the baseline.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: January 30, 2024
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yoshinori Fujino, Ryota Nakayama, Yasuyuki Kawazu
  • Publication number: 20220169849
    Abstract: The present disclosure is directed to provide polyamide-based resin pre-expanded particles which can serve as a raw material of a polyamide-based resin foam shaped product having an excellent mechanical strength. Polyamide-based resin pre-expanded particles of the present disclosure contain a polyamide-based resin. The polyamide-based resin pre-expanded particles have an expansion ratio of 1.0 or more, wherein the expansion ratio is a ratio (?1/?2) of a density ?1 (g/cm3) to a density ?2 (g/cm3) after being pressurized with air at 0.9 MPa and then heated for 30 seconds with saturated steam at a temperature higher than a thermal fusion temperature by 5° C.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 2, 2022
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Ryota NAKAYAMA, Yoshinori FUJINO, Takashi ONOE, Terumichi TONOOKA
  • Publication number: 20210317308
    Abstract: Polyamide pre-expanded particles of this disclosure have a peak temperature of a maximum endothermic peak of 150-275° C. on a DSC curve obtained while being heated from 30° C. to 280° C. at a heating rate of 10° C./min using a DSC. The width of the peak is 30-80° C. when a straight line approximating the DSC curve on a high-temperature side relative to the peak after an end of melting is used as a baseline. The width corresponds to a difference between an extrapolated melting start temperature which is a temperature at an intersection point between a tangent line at an inflection point of the peak on a low-temperature side and the baseline, and an extrapolated melting end temperature which is a temperature at an intersection point between a tangent line at an inflection point of the peak on a high-temperature side and the baseline.
    Type: Application
    Filed: July 31, 2019
    Publication date: October 14, 2021
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yoshinori FUJINO, Ryota NAKAYAMA, Yasuyuki KAWAZU
  • Patent number: 10967909
    Abstract: A side frame comprises a center pillar which includes a reinforcement provided on an outward side in a vehicle width direction and an inner panel provided on an inward side in the vehicle width direction. The reinforcement comprises upper-and-lower hinge attachment sections for attaching rear-door hinges and first-and-second recessed beads for promoting bending of the center pillar in a vehicle side collision. The hinge attachment sections are provided to be spaced apart from each other in a vertical direction. The first recessed bead is provided at a higher level than the lower hinge attachment section. The second recessed bead is provided at a lower level than the lower hinge attachment section and configured to be bent before the first recessed bead in the vehicle side collision.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 6, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hideaki Hoshuyama, Shuang Gao, Ryota Nakayama, Akihiro Kawano, Satoshi Okumura
  • Patent number: 10626810
    Abstract: A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 21, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Toru Nishizawa, Shuichi Iio, Kiyoshi Ohga, Ryota Nakayama, Takashi Yamazaki, Yoshihiro Imaoka, Yasushi Ohmura, Isshou Uehara, Masahiko Nakano, Manabu Hasegawa
  • Publication number: 20200102016
    Abstract: A side frame comprises a center pillar which includes a reinforcement provided on an outward side in a vehicle width direction and an inner panel provided on an inward side in the vehicle width direction. The reinforcement comprises upper-and-lower hinge attachment sections for attaching rear-door hinges and first-and-second recessed beads for promoting bending of the center pillar in a vehicle side collision. The hinge attachment sections are provided to be spaced apart from each other in a vertical direction. The first recessed bead is provided at a higher level than the lower hinge attachment section. The second recessed bead is provided at a lower level than the lower hinge attachment section and configured to be bent before the first recessed bead in the vehicle side collision.
    Type: Application
    Filed: July 18, 2019
    Publication date: April 2, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hideaki HOSHUYAMA, Shuang GAO, Ryota NAKAYAMA, Akihiro KAWANO, Satoshi OKUMURA
  • Publication number: 20180080394
    Abstract: A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Toru NISHIZAWA, Shuichi IIO, Kiyoshi OHGA, Ryota NAKAYAMA, Takashi YAMAZAKI, Yoshihiro IMAOKA, Yasushi OHMURA, Isshou UEHARA, Masahiko NAKANO, Manabu HASEGAWA
  • Patent number: 9903891
    Abstract: The present invention includes a detecting capacitor of which the capacitance is changed depending on pressure; a fixed capacitor having reference capacitance; an initial voltage application part that applies an initial voltage having a predetermined frequency to the detecting capacitor and the fixed capacitor; a first operational amplifier that outputs an output voltage based on a partial voltage applied to at least the detecting capacitor; a reference voltage generation part that generates a reference voltage that serves as a reference for a change in the output voltage of the first operational amplifier and has the same frequency as that of the initial voltage; a second operational amplifier that outputs an output voltage based on the difference between the output voltage of the first operational amplifier and the reference voltage; and a pressure operation part that operates a pressure from the amplitude of the output voltage of the second operational amplifier.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 27, 2018
    Assignee: HORIBA STEC, CO., LTD.
    Inventors: Sotaro Kishida, Ryota Nakayama
  • Patent number: 9890719
    Abstract: A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 13, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Toru Nishizawa, Shuichi Iio, Kiyoshi Ohga, Ryota Nakayama, Takashi Yamazaki, Yoshihiro Imaoka, Yasushi Ohmura, Isshou Uehara, Masahiko Nakano, Manabu Hasegawa
  • Patent number: 9422512
    Abstract: By cleaning with use of a cleaning liquid that contains 10-30% by mass of hydrogen peroxide, 0.005-10% by mass of a quaternary ammonium hydroxide, 0.005-5% by mass of potassium hydroxide, 0.000005-0.005% by mass of an amino polymethylene phosphonic acid and water, a hard mask, an organosiloxane-based thin film, dry etching residue and a photoresist can be removed without corroding a low-dielectric-constant interlayer dielectric film, a wiring material such as copper or an copper alloy, a barrier metal and a barrier dielectric film. According to preferred embodiments of the present invention, damage to copper wiring lines is suppressed even in cases where an acid is added into the cleaning liquid and significant decomposition of hydrogen peroxide is not caused even in cases where titanium is added into the cleaning liquid.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: August 23, 2016
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kenji Shimada, Toshiyuki Oie, Ryota Nakayama, Masaru Ohto
  • Publication number: 20160154030
    Abstract: The present invention includes a detecting capacitor of which the capacitance is changed depending on pressure; a fixed capacitor having reference capacitance; an initial voltage application part that applies an initial voltage having a predetermined frequency to the detecting capacitor and the fixed capacitor; a first operational amplifier that outputs an output voltage based on a partial voltage applied to at least the detecting capacitor; a reference voltage generation part that generates a reference voltage that serves as a reference for a change in the output voltage of the first operational amplifier and has the same frequency as that of the initial voltage; a second operational amplifier that outputs an output voltage based on the difference between the output voltage of the first operational amplifier and the reference voltage; and a pressure operation part that operates a pressure from the amplitude of the output voltage of the second operational amplifier.
    Type: Application
    Filed: November 27, 2015
    Publication date: June 2, 2016
    Applicant: HORIBA STEC, CO., LTD.
    Inventors: Sotaro KISHIDA, Ryota NAKAYAMA
  • Publication number: 20150210966
    Abstract: By cleaning with use of a cleaning liquid that contains 10-30% by mass of hydrogen peroxide, 0.005-10% by mass of a quaternary ammonium hydroxide, 0.005-5% by mass of potassium hydroxide, 0.000005-0.005% by mass of an amino polymethylene phosphonic acid and water, a hard mask, an organosiloxane-based thin film, dry etching residue and a photoresist can be removed without corroding a low-dielectric-constant interlayer dielectric film, a wiring material such as copper or an copper alloy, a barrier metal and a barrier dielectric film. According to preferred embodiments of the present invention, damage to copper wiring lines is suppressed even in cases where an acid is added into the cleaning liquid and significant decomposition of hydrogen peroxide is not caused even in cases where titanium is added into the cleaning liquid.
    Type: Application
    Filed: November 29, 2013
    Publication date: July 30, 2015
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kenji Shimada, Toshiyuki Oie, Ryota Nakayama, Masaru Ohto
  • Publication number: 20150083071
    Abstract: A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 26, 2015
    Inventors: Toru Nishizawa, Shuichi Iio, Kiyoshi Ohga, Ryota Nakayama, Takashi Yamazaki, Yoshihiro Imaoka, Yasushi Ohmura, Isshou Uehara, Masahiko Nakano, Manabu Hasegawa