Patents by Inventor Kei Matsunaga

Kei Matsunaga 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: 12005894
    Abstract: In a driving assistance device for performing a driving assistance process to avoid or mitigate a collision between an own vehicle, which is a vehicle carrying the driving assistance device, and an oncoming vehicle detected within a predefined region ahead of the own vehicle, an entry determiner is configured to determine whether one of the own vehicle and the oncoming vehicle is likely to enter a lane in which the other one is present. An actuation controller is configured to, in response to the entry determiner determining that each one of the own vehicle and the oncoming vehicle is unlikely to enter the lane of the other, restrict actuation of the driving assistance process, and in response to the entry determiner determining that any one of the own vehicle and the oncoming vehicle is likely to enter the lane of the other, not restrict actuation of the driving assistance process.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: June 11, 2024
    Assignee: DENSO CORPORATION
    Inventors: Toru Takahashi, Kei Kamiya, Shogo Matsunaga
  • Patent number: 11667594
    Abstract: By fluorinating 1,2,3,3-tetrachloro-1-propene (1230xd) using hydrogen fluoride as a fluorinating agent, an efficient method for producing 1,2-dichloro-3,3-difluoro-1-propene (1232xd) is provided. Through this composition including 1232xd, there are also provided an environmentally friendly composition having excellent ability to dissolve various organic matters, a method for cleaning an article using the composition, a method for producing a lubricant solution using the composition, and a method for producing a component provided with a lubricant coating film.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: June 6, 2023
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune Okamoto, Kei Matsunaga, Hideaki Imura, Shota Kawano
  • Publication number: 20220401613
    Abstract: One embodiment of the present invention provides a nonwoven fabric containing silk fibers in which an abs intensity ratio [abs (1650)/abs (1620)], which is a ratio of an intensity of a peak positioned in a vicinity of 1650 cm?1 [abs (1650)] in an infrared absorption spectrum to an intensity of a peak positioned in a vicinity of 1620 cm?1 [abs (1620)] in an infrared absorption spectrum, is larger than 0.65 and 1.90 or less, and a method for producing the nonwoven fabric containing silk fibers.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 22, 2022
    Inventors: Yuki SEKIYA, Wataru KAWAI, Yuki HAGIWARA, Kei MATSUNAGA
  • Publication number: 20220251008
    Abstract: By fluorinating 1,2,3,3-tetrachloro-1-propene (1230xd) using hydrogen fluoride as a fluorinating agent, an efficient method for producing 1,2-dichloro-3,3-difluoro-1-propene (1232xd) is provided. Through this composition including 1232xd, there are also provided an environmentally friendly composition having excellent ability to dissolve various organic matters, a method for cleaning an article using the composition, a method for producing a lubricant solution using the composition, and a method for producing a component provided with a lubricant coating film.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 11, 2022
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune OKAMOTO, Kei MATSUNAGA, Hideaki IMURA, Shota KAWANO
  • Patent number: 11339106
    Abstract: By fluorinating 1,2,3,3-tetrachloro-1-propene (1230xd) using hydrogen fluoride as a fluorinating agent, an efficient method for producing 1,2-dichloro-3,3-difluoro-1-propene (1232xd) is provided. Through this composition including 1232xd, there are also provided an environmentally friendly composition having excellent ability to dissolve various organic matters, a method for cleaning an article using the composition, a method for producing a lubricant solution using the composition, and a method for producing a component provided with a lubricant coating film.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: May 24, 2022
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune Okamoto, Kei Matsunaga, Hideaki Imura, Shota Kawano
  • Publication number: 20220119595
    Abstract: A polyimide which is obtained by a reaction of an aromatic diamine having a 1,1,1-trifluoro-2,2-ethanediyl group (—C(CF3)H—), as a linkage skeleton, with a tetracarboxylic dianhydride is easily dissolved in an organic solvent and exhibits excellent film forming properties. In addition, the thus-obtained polyimide can be used for an optical film and a display device.
    Type: Application
    Filed: February 3, 2020
    Publication date: April 21, 2022
    Inventors: Hiroshi EGUCHI, Ayumi YAMAGUCHI, Yukari HARA, Kei MATSUNAGA, Hiroto HORI, Yosuke MURAKAMI, Kensuke HIROTAKI, Kenji HOSOI
  • Publication number: 20200369584
    Abstract: By fluorinating 1,2,3,3-tetrachloro-1-propene (1230xd) using hydrogen fluoride as a fluorinating agent, an efficient method for producing 1,2-dichloro-3,3-difluoro-1-propene (1232xd) is provided. Through this composition including 1232xd, there are also provided an environmentally friendly composition having excellent ability to dissolve various organic matters, a method for cleaning an article using the composition, a method for producing a lubricant solution using the composition, and a method for producing a component provided with a lubricant coating film.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 26, 2020
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune OKAMOTO, Kei MATSUNAGA, Hideaki IMURA, Shota KAWANO
  • Patent number: 10703693
    Abstract: A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated: CFaCl3-a—CH2—CHFbCl2-b??(1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: July 7, 2020
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune Okamoto, Kohei Sumida, Kei Matsunaga, Yoshio Nishiguchi, Satoru Okamoto
  • Patent number: 10611708
    Abstract: A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: April 7, 2020
    Assignee: Central Glass Company, Limited
    Inventors: Kei Matsunaga, Hideaki Imura, Masatomi Kanai, Masahiko Tani, Naoto Takada, Kohei Sumida, Satoru Okamoto
  • Publication number: 20200010388
    Abstract: A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated: CFaCl3-a—CH2—CHFbCl2-b??(1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventors: Masamune OKAMOTO, Kohei SUMIDA, Kei MATSUNAGA, Yoshio NISHIGUCHI, Satoru OKAMOTO
  • Publication number: 20190092711
    Abstract: A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.
    Type: Application
    Filed: April 10, 2017
    Publication date: March 28, 2019
    Inventors: Kei MATSUNAGA, Hideaki IMURA, Masatomi KANAI, Masahiko TANI, Naoto TAKADA, Kohei SUMIDA, Satoru OKAMOTO
  • Patent number: 7750178
    Abstract: The present invention relates to a polymerizable acrylate compound represented by the general formula (1): (in the formula, R1 represents a hydrogen atom, halogen atom, hydrocarbon group or fluorine-containing alkyl group, R2 and R3 may be different or identical, and each of them independently is a hydrogen atom, fluorine atom, hydrocarbon group optionally branched, fluorine-containing alkyl group, aromatic group, or cyclic structure containing an aliphatic group and may contain oxygen or carbonyl bond) and a polymer compound obtained by using the same.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: July 6, 2010
    Assignee: Central Glass Company, Limited
    Inventors: Satoru Miyazawa, Satoru Kobayashi, Takeo Komata, Kei Matsunaga
  • Patent number: 7550630
    Abstract: A process for producing N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-1,1,1-trifluoromethanesulfonamide represented by formula [3]. The process includes the step of reacting trifluoromethanesulfonic anhydride with 1-bicyclo[2.2.1]hept-5-en-2-ylmethanamine in the presence of water and in the presence of a base selected from the group consisting of alkali metal hydroxides, alkaline-earth metal hydroxides and basic salts containing an alkali metal or an alkaline-earth metal.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: June 23, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Kei Matsunaga, Takeo Komata
  • Patent number: 7524977
    Abstract: There is provided a process for producing a fluoroalkanesulfonamide derivative represented by the formula [3], R2—NH—SO2—Rf—R1??[3] including reacting a fluoroalkanesulfonic anhydride represented by the formula [1], with an organic primary amine represented by the formula [2], in the presence of water and in the presence of a base selected from the group consisting of (a) a hydroxide of an alkali metal or alkaline-earth metal or (b) a basic salt containing an alkali metal or alkaline-earth metal.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: April 28, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Kei Matsunaga, Takeo Komata
  • Patent number: 7385091
    Abstract: A process for producing a fluorine-containing diol represented by the formula [2], includes reducing a hydroxy ketone represented by the formula [1], by hydrogen in the presence of a ruthenium catalyst. The ruthenium catalyst may be a solid-phase catalyst in which ruthenium is carried on an activated carbon, alumina or silica.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: June 10, 2008
    Assignee: Central Glass Co., Ltd.
    Inventors: Takeo Komata, Makoto Matsuura, Kei Matsunaga
  • Publication number: 20080071113
    Abstract: A process for producing N-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-1,1,1-trifluoromethanesulfonamide represented by formula [3]. The process includes the step of reacting trifluoromethanesulfonic anhydride with 1-bicyclo[2.2.1]hept-5-en-2-ylmethanamine in the presence of water and in the presence of a base selected from the group consisting of alkali metal hydroxides, alkaline-earth metal hydroxides and basic salts containing an alkali metal or an alkaline-earth metal.
    Type: Application
    Filed: July 25, 2007
    Publication date: March 20, 2008
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Kei Matsunaga, Takeo Komata
  • Publication number: 20080058538
    Abstract: There is provided a process for producing a fluoroalkanesulfonamide derivative represented by the formula [3], R2—NH—SO2—Rf—R1??[3] including reacting a fluoroalkanesulfonic anhydride represented by the formula [1], with an organic primary amine represented by the formula [2], in the presence of water and in the presence of a base selected from the group consisting of (a) a hydroxide of an alkali metal or alkaline-earth metal or (b) a basic salt containing an alkali metal or alkaline-earth metal.
    Type: Application
    Filed: July 25, 2007
    Publication date: March 6, 2008
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Kei Matsunaga, Takeo Komata
  • Patent number: 7205443
    Abstract: A process for producing a fluorine-containing 2,4-diol represented by the formula [4], wherein R1 represents a hydrogen atom or an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; R2 represents an acyclic or cyclic alkyl group having a carbon atom number of 1 to 7; and R1 and R2 are optionally bonded to each other to form a ring, includes reducing a hydroxy ketone represented by the formula [3], wherein R1 and R2 are defined as above, by hydrogen in the presence of a ruthenium catalyst.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 17, 2007
    Assignee: Central Glass Company, Limited
    Inventors: Takeo Komata, Kei Matsunaga, Yoshiki Hirotsu, Shinya Akiba
  • Publication number: 20070032684
    Abstract: A process for producing a fluorine-containing diol represented by the formula [2], includes reducing a hydroxy ketone represented by the formula [1], by hydrogen in the presence of a ruthenium catalyst. The ruthenium catalyst may be a solid-phase catalyst in which ruthenium is carried on an activated carbon, alumina or silica.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 8, 2007
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Takeo Komata, Makoto Matsuura, Kei Matsunaga
  • Publication number: 20060217507
    Abstract: The present invention relates to a polymerizable acrylate compound represented by the general formula (1): (in the formula, R1 represents a hydrogen atom, halogen atom, hydrocarbon group or fluorine-containing alkyl group, R2 and R3 may be different or identical, and each of them independently is a hydrogen atom, fluorine atom, hydrocarbon group optionally branched, fluorine-containing alkyl group, aromatic group, or cyclic structure containing an aliphatic group and may contain oxygen or carbonyl bond) and a polymer compound obtained by using the same.
    Type: Application
    Filed: February 5, 2004
    Publication date: September 28, 2006
    Applicant: Central Glass Company, Limited
    Inventors: Satoru Miyazawa, Satoru Kobayashi, Takeo Komata, Kei Matsunaga