Patents by Inventor Yukiya Kobayashi

Yukiya Kobayashi 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: 20240165588
    Abstract: A method for producing a chromatography carrier, including providing a solid phase support, where the solid phase support provided is formed of porous particles on which a ligand has or has not been immobilized, and subjecting the solid phase support to sieve classification. A coefficient of variation of a volume particle size distribution of the porous particles when a ligand has been immobilized is adjusted to 1% to 22%, and a ratio (d1/d50) of volume cumulative 1% particle size d1 to volume cumulative 50% particle size d50 in terms of the porous particles is adjusted to 0.55 to 1.0.
    Type: Application
    Filed: March 15, 2022
    Publication date: May 23, 2024
    Applicant: JSR CORPORATION
    Inventors: Kunihiko KOBAYASHI, Minato AKIYAMA, Yukiya INOUE, Masahiro KIKUCHI
  • Publication number: 20240116027
    Abstract: A chromatography carrier may exhibit high liquid permeability and an excellent pressure-resistant characteristic during liquid passage. A chromatography carrier production method may include: (1) providing a solid phase support, the solid phase support being formed of porous particles on which a ligand has or has not been immobilized; and (2) subjecting the solid phase support to sieve classification, the coefficient of variation of the volume particle size distribution of the porous particles when a ligand has been immobilized being adjusted to 1% to 22%. The skewness of the volume particle size distribution of the porous particles when a ligand has been immobilized may be adjusted to ?0.1 to 5.
    Type: Application
    Filed: March 15, 2022
    Publication date: April 11, 2024
    Applicant: JSR CORPORATION
    Inventors: Kunihiko KOBAYASHI, Minato AKIYAMA, Yukiya INOUE, Masahiro KIKUCHI
  • Publication number: 20240103324
    Abstract: An electrooptical device includes a first substrate, a first electrode disposed on the first substrate, a second substrate facing the first substrate, a second electrode disposed on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate. The first substrate includes a first terminal, a second terminal, a first conductive portion electrically coupled to the first terminal, and a second conductive portion electrically coupled to the second terminal, the second substrate includes a third conductive portion electrically coupled to the second electrode, and a fourth conductive portion electrically coupled to the third conductive portion, and the electrooptical device further includes a first coupling member electrically coupling the first conductive portion and the third conductive portion, and a second coupling member electrically coupling the second conductive portion and the fourth conductive portion.
    Type: Application
    Filed: September 21, 2023
    Publication date: March 28, 2024
    Inventors: Yukiya HIRABAYASHI, Osamu KOBAYASHI, Shunpei TAKEUCHI
  • Patent number: 9109078
    Abstract: A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 18, 2015
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Takayuki Tsuji, Shigekuni Nakada, Yukiya Kobayashi, Katsuya Uchida
  • Patent number: 9062148
    Abstract: A method for producing a fine-particle-dispersed polyol (I) is provided, the method including the steps (1) and (n?1): the step (1) of polymerizing an ethylenically unsaturated monomer (b) in a polyol (a), in the presence of fine particles (P1) and a radical polymerization initiator (c), so as to obtain a fine-particle-dispersed polyol intermediate (B2); and the step (n?1) of polymerizing (b) in a fine-particle-dispersed polyol intermediate (B(n?1)), in the presence of (c), so as to obtain a fine-particle-dispersed polyol intermediate (Bn) or the fine-particle-dispersed polyol (I), where n represents an integer of 3 to 7, wherein (P1) have a volume-average particle diameter (R1) of 0.01 ?m to 1.0 ?m, and a concentration of (b) in the step (1) is 7 wt % to 40 wt %.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 23, 2015
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Shigekuni Nakada, Takayuki Tsuji, Yukiya Kobayashi
  • Publication number: 20140288238
    Abstract: A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventors: Takayuki TSUJI, Shigekuni NAKADA, Yukiya KOBAYASHI, Katsuya UCHIDA
  • Patent number: 8772405
    Abstract: A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: July 8, 2014
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Takayuki Tsuji, Shigekuni Nakada, Yukiya Kobayashi, Katsuya Uchida
  • Publication number: 20100222507
    Abstract: A method for producing a fine-particle-dispersed polyol (I) is provided, the method including the steps (1) and (n?1): the step (1) of polymerizing an ethylenically unsaturated monomer (b) in a polyol (a), in the presence of fine particles (P1) and a radical polymerization initiator (c), so as to obtain a fine-particle-dispersed polyol intermediate (B2); and the step (n?1) of polymerizing (b) in a fine-particle-dispersed polyol intermediate (B(n?1)), in the presence of (c), so as to obtain a fine-particle-dispersed polyol intermediate (Bn) or the fine-particle-dispersed polyol (I), where n represents an integer of 3 to 7, wherein (P1) have a volume-average particle diameter (R1) of 0.01 ?m to 1.0 ?m, and a concentration of (b) in the step (1) is 7 wt % to 40 wt %.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 2, 2010
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigekuni Nakada, Takayuki Tsuji, Yukiya Kobayashi
  • Publication number: 20100210768
    Abstract: A polymer polyol (I) is provided that is formed of a polyol (A), polymer particles (B) obtained by polymerization of an ethylenically unsaturated compound (b), and an active-hydrogen-containing compound (d) having an aromatic ring and having a number-average molecular weight of 150 to 2,000, wherein a content of (d) is 1 to 20% on the basis of a weight of (B). The polymer polyol of the present invention contains polymer particles having sufficiently small particle diameters, has a low viscosity, and has excellent handleability. A polyurethane resin obtained by using the polymer polyol of the present invention has excellent mechanical strengths such as elongation at break.
    Type: Application
    Filed: September 25, 2008
    Publication date: August 19, 2010
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Takayuki Tsuji, Shigekuni Nakada, Yukiya Kobayashi, Katsuya Uchida
  • Patent number: 7099146
    Abstract: The present invention is to provide an electrolyte with which the withstand voltage and capacitor capacity can be prevented from lowering, and an electrochemical capacitor containing the same. The present invention uses an electrolyte for an electrochemical capacitor comprising a cyclic amidinium salt (B) represented by the general formula (1), wherein the total amount of a cyclic amidinium salt derivative (A) represented by the general formula (2) is not larger than 10 mole % relative to the sum of (A) and (B).
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: August 29, 2006
    Assignees: Sanyo Chemical Industries, Ltd., Matsushita Electric Industrial, Co., Ltd.
    Inventors: Yukiya Kobayashi, Hideo Seike, Yoshinori Takamuku
  • Publication number: 20060003231
    Abstract: An electrolytic solution for electrolytic capacitors is disclosed which allows to generate higher spark voltages without inducing decrease in the specific electric conductivity. The electrolytic solution comprises an organic polar solvent (C) and further comprises a carboxylic acid (A0) and/or its salt (B) dissolved in the solvent, wherein the carboxylate anion (A) is characterized in that the energy of formation in water of its ionic complex (D) with aluminum ion is not more than ?250 kcal/mol and not less than ?500 kcal/mol as calculated by the MM3/PM3 method of the CAChe system.
    Type: Application
    Filed: August 19, 2003
    Publication date: January 5, 2006
    Inventors: Shinya Sasada, Yukiya Kobayashi, Shinya Taguchi, Shunsuke Jogo
  • Patent number: 6621684
    Abstract: Electric double layer capacitors having improved stability of electrochemical properties and improved retention of residual voltage, imparted by using an electrolytic solution containing a polymer, such as acrylonitrile/stryrene copolymer, giving an increased electrolyte ion difusion resistance are provided. The capacitors are useful for electro-storage devices, such as back-up power source for real time clocks. The polymer is useful for suppressing self discharge in electronic components, such as electric double layer capacitor, aluminum electrolytic capacitors, electro-chemical capacitor and secondary batteries.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: September 16, 2003
    Assignees: Matsushita Electric Insustrial Co. Ltd., Sanyo Chemical Industries, Ltd.
    Inventors: Hideki Shimamoto, Yoshinori Takamuku, Yukiya Kobayashi, Minako Fujiyoshi
  • Publication number: 20020036884
    Abstract: An electric double layer capacitors, are disclosed, having improved stability of electrochemical properties and improved retention of residual voltage, imparted by using an electrolytic solution containing a polymer, such as acrylonitrile/ styrene copolymer, giving an increased electrolyte ion difusion resistance. The capacitors are useful for electro-storage devices, such as back-up power source for real time clocks.
    Type: Application
    Filed: June 19, 2001
    Publication date: March 28, 2002
    Inventors: Hideki Shimamoto, Yoshinori Takamuku, Yukiya Kobayashi, Minako Fujiyoshi