Patents by Inventor Takashi Ookubo

Takashi Ookubo 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: 11269130
    Abstract: A transparent resin composition includes a transparent resin and a light diffusing agent which has an average particle diameter of 220 nm or more and 300 nm or less, in which a content proportion of the light diffusing agent is more than 4.0 mass ppm and less than 20 mass ppm with respect to the total mass of the transparent resin composition.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: March 8, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Youhei Sechi, Tadayoshi Sawada, Takashi Ookubo
  • Publication number: 20210003768
    Abstract: A transparent resin composition includes a transparent resin and a light diffusing agent which has an average particle diameter of 220 nm or more and 300 nm or less, in which a content proportion of the light diffusing agent is more than 4.0 mass ppm and less than 20 mass ppm with respect to the total mass of the transparent resin composition.
    Type: Application
    Filed: September 4, 2020
    Publication date: January 7, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Youhei SECHI, Tadayoshi SAWADA, Takashi OOKUBO
  • Patent number: 8304573
    Abstract: A method of recovering pyrolysis products of resin of the present invention includes cooling gaseous pyrolysis products generated from pyrolysis of the resin in a pyrolysis tank to recover the resin as liquid pyrolysis products. The method includes the following steps (1) to (4): (1) continuously feeding fluidization gas, heated solid particles, and a resin into the pyrolysis tank to fluidize the solid particles and the resin by the fluidization gas; (2) continuously feeding the resin into the pyrolysis tank from a position which is ½ or less of the height of a solid particle layer in the pyrolysis tank in a stationary state; (3) continuously discharging the solid particles from a position lower than the height of a feeding position of the resin; and (4) heating the discharged solid particles in a heating furnace and then feeding the heated solid particles into the pyrolysis tank.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Akinobu Sasaki, Nobuyuki Kikuya, Takashi Ookubo, Masahiro Hayashida
  • Patent number: 8240338
    Abstract: An auxiliary tool comprises a body formed of a core material and an elastic cloth covering that covers the surface of the core material. The body is configured for insertion into a pipe ahead of a fluid used to fill the pipe so that during filling of the pipe the flow of the fluid advances the body through the pipe to force out and discharge from the pipe air existing ahead of the body while the body is advanced inside of the pipe.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: August 14, 2012
    Assignee: Shonan Gosei-Jushi Seisakusho K.K.
    Inventors: Takao Kamiyama, Guochun Xu, Takashi Ookubo, Seiya Chiba
  • Publication number: 20100121097
    Abstract: A method of recovering pyrolysis products of resin of the present invention includes cooling gaseous pyrolysis products generated from pyrolysis of the resin in a pyrolysis tank to recover the resin as liquid pyrolysis products. The method includes the following steps (1) to (4): (1) continuously feeding fluidization gas, heated solid particles, and a resin into the pyrolysis tank to fluidize the solid particles and the resin by the fluidization gas; (2) continuously feeding the resin into the pyrolysis tank from a position which is ½ or less of the height of a solid particle layer in the pyrolysis tank in a stationary state; (3) continuously discharging the solid particles from a position lower than the height of a feeding position of the resin; and (4) heating the discharged solid particles in a heating furnace and then feeding the heated solid particles into the pyrolysis tank.
    Type: Application
    Filed: March 7, 2008
    Publication date: May 13, 2010
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Akinobu Sasaki, Nobuyuki Kikuya, Takashi Ookubo, Masahiro Hayashida
  • Publication number: 20080271808
    Abstract: An auxiliary tool comprises a core material covered on the surface with an elastic cloth. The auxiliary tool is inserted into a pipe having curved and bent parts and a fluid is injected into the pipe. Since the cloth covering is elastic and flexible, the auxiliary tool passes through the ridges of peaks in the pipe while maintaining a tight fit against the pipe wall. The auxiliary tool is moved through the pipe without slipping while forcing out air, and is discharged through a discharge side thereof. Air does not accumulate in the curved and bent parts of the pipe, thereby completely filling the pipe with the fluid.
    Type: Application
    Filed: March 27, 2008
    Publication date: November 6, 2008
    Inventors: Takao Kamiyama, Guochun Xu, Takashi Ookubo, Seiya Chiba
  • Publication number: 20080272110
    Abstract: An electric heating apparatus comprises a sheet heating element having two end electrodes and a center electrode. The sheet heating element is wound around the external peripheral surface of an airtight and elastic expandable balloon. The balloon is disposed inside a lining material impregnated with a thermosetting resin for repairing a pipe and is swelled against the inside wall of the pipe through the lining material. The end and center electrodes are supplied with electricity to generate heat in the sheet heating element, thereby curing the thermosetting resin impregnated in the lining material. This allows pipe lining to be performed with much higher energy efficiency and simpler steps.
    Type: Application
    Filed: March 27, 2008
    Publication date: November 6, 2008
    Inventors: Takao Kamiyama, Guochun Xu, Kazuki Shimizu, Takashi Ookubo, Youshitaka Arii
  • Patent number: 4932510
    Abstract: A torque transmitting assembly comprises a first rotary element including internal cam surfaces, a second rotary element disposed in the first rotary element, the second rotary element including a rotor containing a plurality of radially outwardly opening pressure chambers facing the cam surfaces, and a hydraulic mechanism for transmitting a ratio of the input torque from one of the first rotary element and the second rotary element to the other in response to rotation speed of the second rotary element and also to differential rotation occurring between the first rotary element and the second rotary element.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: June 12, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tooji Takemura, Takashi Ookubo
  • Patent number: 4305309
    Abstract: Transfer unit includes a shift rod which is slidably supported at both ends in a transfer case and is adapted to cooperate with a shift fork to effect changeover between two wheel and four wheel drive conditions. The shift fork is supported by the shift rod so as to be movable in both shift directions and is resiliently retained in position on the shift rod.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: December 15, 1981
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Ookubo, Yukiyoshi Sasabe, Kiyotaka Ozaki
  • Patent number: 4290318
    Abstract: An operating mechanism of a transfer unit includes a first two wheels four wheels drive shift fork, a second high-neutral-low speed shift fork, first and second shift rods for the first and second forks, one operating lever to shift the two rods, a waiting mechanism resiliently retaining the first shift fork on the shift rod to operate the operating lever when an actual shifting of the shift fork is difficult, and means to prevent second shift rod from moving when the first shift fork is actually in two wheels drive position.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: September 22, 1981
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Ookubo, Yukiyoshi Sasabe