Patents by Inventor Kazuhiro Takahashi

Kazuhiro Takahashi 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: 20220089924
    Abstract: The invention provides a novel composition comprising cis-1,2-difluoroethylene. The invention provides the following: a composition comprising cis-1,2-difluoroethylene (HFO-1132(Z)) and at least one additional compound; the composition that is an azeotropic or azeotrope-like composition; and use of the composition as a heat transfer medium, a foaming agent, or a propellant.
    Type: Application
    Filed: January 10, 2020
    Publication date: March 24, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20220082414
    Abstract: The disclosure provides a device holding member and a device holding member set. The device holding member is engaged with a bottom member formed with a hole or a frame supporting the bottom member and holds a device arranged on the bottom member. The device holding member includes a belt and a locking member. The belt includes an end part provided with an engaging member engageable with an edge part of the bottom member or the frame and holds the device. The locking member is provided between the engaging member and the device and locks a part of the belt to the hole.
    Type: Application
    Filed: August 15, 2021
    Publication date: March 17, 2022
    Applicant: FUNAI ELECTRIC CO., LTD.
    Inventors: Manabu MURAYAMA, Naoyuki WAKABAYASHI, Kazuhiro TAKAHASHI, Shingo HAMADA
  • Publication number: 20220072936
    Abstract: A resin frame-attached glass plate for a vehicle window includes a glass plate; a resin frame attached to a peripheral edge area of the glass plate; and a decorative member disposed on the resin frame such that the resin frame is integrally molded along with the glass plate and the decorative member; wherein the resin frame has a groove formed along a boundary between the resin frame and an exposed portion of the decorative member, the groove being recessed from a surface of the resin frame.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 10, 2022
    Applicant: AGC Inc.
    Inventors: Naonori Hatta, Kazuhiro Takahashi
  • Publication number: 20220066326
    Abstract: An exposure apparatus includes an illumination optical system for illuminating an original including a periodic pattern, a projection optical system for forming an image of the original on a substrate, a controller configured to cause light from the illumination optical system to be obliquely incident on the original such that a light intensity distribution which is line-symmetric with respect to a line, passing through an origin of a pupil region of the projection optical system and orthogonal to a periodic direction of the periodic pattern, is formed in the pupil region by diffracted light beams including diffracted light of not lower than 2nd-order from the periodic pattern, and to control exposure of the substrate such that each point in a shot region of the substrate is exposed in not less than two focus states.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 3, 2022
    Inventor: Kazuhiro Takahashi
  • Publication number: 20220049361
    Abstract: A method for manufacturing a ruthenium wiring including (i) treating a metal surface including ruthenium using a first chemical solution including a compound having a functional group capable of coordinating to a ruthenium atom, and (ii) carrying out an etching treatment on the metal surface including ruthenium treated with the first chemical solution, using a second chemical solution.
    Type: Application
    Filed: August 5, 2021
    Publication date: February 17, 2022
    Inventors: Yukihisa WADA, Shinya KOGA, Kazuhiro TAKAHASHI, Natsumi OKAWA, Daijiro MORI
  • Patent number: 11247951
    Abstract: The present invention aims to provide an efficient method for obtaining a desired isomer of HFO-1132 from a composition comprising trans-1,2-difluoroethylene (HFO-1132(E)) and cis-1,2-difluoroethylene (HFO-1132(Z)). The present invention provides, as a means for solving the problem, a method for producing HFO-1132(E) and/or HFO-1132(Z), comprising steps (1) to (3): (1) supplying a composition comprising HFO-1132(E) and/or HFO-1132(Z) to a reactor filled with a catalyst to perform an isomerization reaction between the HFO-1132(E) and the HFO-1132(Z); (2) separating the reaction product obtained in step (1) into a first stream comprising the HFO-1132(E) as a main component, and a second stream comprising the HFO-1132(Z) as a main component; and (3) recycling the first stream or the second stream obtained in step (2) to the reactor, to subject the first stream or the second stream to the isomerization reaction.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 15, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Usui, Tsubasa Nakaue, Yuzo Komatsu, Kazuhiro Takahashi, Takehiro Chaki, Megumi Kushida
  • Patent number: 11248152
    Abstract: The present disclosure provides a composition comprising a refrigerant characterized by having a GWP lower than that of R410A and a COP equivalent to that of R410A. Specifically, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising CO2 (R744) and at least one compound A selected from the group consisting of trans-1,2-difluoroethylene [(E)-HFO-1132], cis-1,2-difluoroethylene [(Z)-HFO-1132], fluoroethylene (HFO-1141), and 3,3,3-trifluoropropyne (TFP).
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 15, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuhiro Takahashi, Shun Ohkubo, Mitsushi Itano, Tatsuya Takakuwa, Kei Kuramoto
  • Publication number: 20220023693
    Abstract: The present disclosure provides a novel azeotropic or azeotrope-like composition comprising hydrogen fluoride and 1,1,2-trifluoroethane (HFC-143), 1-chloro-2,2-difluoroethane (HCFC-142), or 1,2-dichloro-1-fluoroethane (HCFC-141); and a separation method using the composition. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HFC-143. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-142. An azeotropic or azeotrope-like composition comprising hydrogen fluoride and HCFC-141. A separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of HFC-143, HCFC-142, and HCFC-141.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Patent number: 11225446
    Abstract: According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF2?CF—(CF2)n-4—CF?CF2 (1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): X1CF2—CFX2—(CF2)n-4—CF2—CF2X1 (2), wherein n is the same as above, X1 is the same or different and is a halogen atom other than fluorine, and X2 is a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 18, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuusuke Etou, Atsushi Maruo, Katsuya Nakai, Kazuhiro Takahashi
  • Publication number: 20220009861
    Abstract: Provided are a novel azeotropic or azeotrope-like composition, and a separation method using the composition. An object is to provide a novel azeotropic or azeotrope-like composition, and a separation method using the composition. A solution to achieve the object is to provide an azeotropic or azeotrope-like composition containing trifluoroethylene and at least one compound selected from the group consisting of 1,1-difluoroethylene, fluoroethylene, and trifluoromethane.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20220010184
    Abstract: An object of the present invention is to provide a novel azeoropic or azeotrope-like composition that is effective for the separation of HF from 1,1,2-trichloroethane (HCC-140), trans-1,2-dichloroethylene (HCO-1130(E)), or cis-1,2-dichloroethylene (HCO-1130(Z)). The object can be achieved by an azeotropic or azeotrope-like composition comprising HCC-140, HCO-1130(E), or HCO-1130(Z), and hydrogen fluoride.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20220002894
    Abstract: A coated titanium material includes a titanium material and a coating film formed on a surface of the titanium material. A Ti-based oxide is included in an interface between the titanium material and the coating film. The Ti-based oxide is one or both rutile type TiO2 and Ti2O3. In a case where a cut surface of the coating film is formed by using a SAICAS method under conditions that a horizontal speed is 2 ?m/s and a vertical speed is 0.1 ?m/s, on the cut surface, an area percentage of the Ti-based oxide is 30.0% or more in a region having a distance of 15 ?m from a reference line specified on the basis of a boundary line, which is an intersection line between the cut surface and the interface, to a coating film side.
    Type: Application
    Filed: January 23, 2020
    Publication date: January 6, 2022
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kazuhiro TAKAHASHI, Koji AKIOKA, Eiji IKEDA, Hideya KAMINAKA
  • Publication number: 20210403778
    Abstract: Provided is a novel composition containing HFC-143. The composition contains HFC-143 and at least one additional compound selected from the group consisting of HFO-1132a, HFO-1123, HFC-143a, CTFE, HCFO-1131a, HFC-152a, HFC-152, HCFO-1131(E), HCFO-1131(Z), HFC-134a, HFC-161, HCFC-141, HCFC-123, HCFC-142, HCFC-142a, HCFO-1122, HCFO-1122a, HFO-1141, HCFC-21, HCFC-22, HFC-23, ethylene, and acetylene.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20210403779
    Abstract: A novel composition comprising HFC-143 is provided. This invention relates to a composition comprising a refrigerant, wherein the refrigerant comprises 1,1,2-trifluoroethane (HFC-143), and at least one compound selected from the group consisting of 1-chloro-1,2,2-trifluoroethane (HCFC-133), 1-chloro-1,1,2-trifluoroethane (HCFC-133b), and 1-chloro-2-fluoroethylene (HCFO-1131).
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20210395173
    Abstract: The present disclosure provides a method for producing HFC-143 at low cost and more efficiently than when using conventional methods. Specifically, the present disclosure provides a method for producing 1,1,2-trifluoroethane (HFC-143), comprising performing one or more fluorination reactions by bringing at least one chlorine-containing compound selected from the group consisting of 2-chloro-1,1-difluoroethane (HCFC-142) and 1-chloro-1,2-difluoroethane (HCFC-142a) into contact with hydrogen fluoride to obtain a reaction gas containing HFC-143, hydrogen chloride, and hydrogen fluoride.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takehiro CHAKI, Tsubasa NAKAUE, Megumi KUSHIDA, Kazuhiro TAKAHASHI
  • Patent number: 11205994
    Abstract: The present invention provides a solar photovoltaic installation capable of storing power while supplying power during daytime when solar radiation conditions are excellent. The solar photovoltaic installation of the invention includes at least a first solar module string 11 and a second solar module string 12 as solar module strings 10, the solar photovoltaic installation further includes at least a first storage battery array 21 and a second storage battery array 22 as storage battery arrays 20, and while power storage capacity detection means 60 detects that the second storage battery array 22 is less than a predetermined capacity and voltage detection means 50 detects voltage of more than predetermined voltage, the control means 40 connects the first solar module string 11 to a power conditioner 30, and connects the second solar module string 12 to the second storage battery array 22.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: December 21, 2021
    Assignee: CHURAECONET LLC
    Inventor: Kazuhiro Takahashi
  • Publication number: 20210363396
    Abstract: An object is to provide an azeotropic or azeotrope-like composition containing HFO-1132(E) and HFC-143a, and a method for separating HFO-1132(E) and HFC-143a from a composition containing HFO-1132(E) and HFC-143a. Provided as a solution to achieve the object is a composition containing a refrigerant, wherein the refrigerant is azeotropic or azeotrope-like and contains trans-1, 2-difluoroethylene (HFO-1132(E)) and 1,1,1-trifluoroethane (HFC-143a), and the proportion of HFO-1132(E) is 80 mass % or more and the proportion of HFC-143a is 20 mass % or less based on the total amount of HFO-1132(E) and HFC-143a in the refrigerant.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuhiro TAKAHASHI, Tsubasa NAKAUE, Takehiro CHAKI, Takashi USUI, Megumi KUSHIDA
  • Publication number: 20210346820
    Abstract: This disclosure provides a novel azeotrope-like composition and a separation method using the composition. The disclosure provides an azeotrope-like composition comprising 1,2-difluoroethylene (HFO-1132) and hydrogen fluoride; an azeotrope-like composition comprising 1,1,2-trifluoroethylene (HFO-1123) and hydrogen fluoride; and a separation method of a composition comprising hydrogen fluoride and at least one member selected from the group consisting of trans-1,2-difluoroethylene (HFO-1132(E)), cis-1,2-difluoroethylene (HFO-1132(Z)), and 1,1,2-trifluoroethylene (HFO-1123).
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI
  • Publication number: 20210348252
    Abstract: An ?+? type titanium alloy wire contains, in mass %, Al: 4.50 to 6.75%, Si: 0 to 0.50%, C: 0.080% or less, N: 0.050% or less, H: 0.016% or less, O: 0.25% or less, Mo: 0 to 5.5%, V: 0 to 4.50%, Nb: 0 to 3.0%, Fe: 0 to 2.10%, Cr: 0 to less than 0.25%, Ni: 0 to less than 0.15%, Mn: 0 to less than 0.25%, and the balance being Ti and impurities, the contents of Al, Mo, V, Nb, Fe, Cr, Ni, and Mn satisfying an equation, in which an average aspect ratio of an ? crystal grain is 1.0 to 3.0, a maximum crystal grain diameter of the ? crystal grain is 30.0 ?m or less, an average crystal grain diameter of the ? crystal grain is 1.0 to 15.0 ?m.
    Type: Application
    Filed: October 7, 2019
    Publication date: November 11, 2021
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Ryotaro MIYOSHI, Tomonori KUNIEDA, Kazuhiro TAKAHASHI, Tatsuo YAMAZAKI, Akira KAWAKAMI
  • Publication number: 20210340084
    Abstract: It is an object to provide a new azeotropic or azeotropic-like composition comprising HCFC-142. The present disclosure provides, as its solution, an azeotropic or azeotropic-like composition comprising a refrigerant, wherein the refrigerant comprises 2-chloro-1,1-difluoroethane (HCFC-142) and at least one additional compound selected from the group consisting of trans-1,2-dichloroethylene (HCO-1130(E)) and the like.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Kazuhiro TAKAHASHI