Patents by Inventor Keisuke Kawashima

Keisuke Kawashima 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: 11920001
    Abstract: A photocurable composition contains: a component (A): (meth)acrylic acid ester having 2 to 6 (meth)acryloyl groups in one molecule, a component (B): a thiol compound having 2 to 4 thiol groups in one molecule, and a component (C): a photobase generator, in which a mass ratio of the component (A) to the component (B) is 66:34 to 33:67, inclusive, a functional group equivalent of the component (A) is 96 g/eq to 180 g/eq, inclusive, a functional group equivalent of the component (B) is 95 g/eq to 190 g/eq, inclusive, and a content of the component (C) is 0.5 parts by mass to 2 parts by mass with respect to 100 parts by mass of a total of the component (A), the component (B), and the component (C).
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: March 5, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Kawashima, Honami Nawa
  • Patent number: 11923635
    Abstract: A protective cover protects a connector coupling portion which is an electrical connection between an on-vehicle sensor to be mounted on a vehicle body component and a wiring. This protective cover includes a protection portion and a fixing portion. The protection portion covers the connector coupling portion at which a sensor-side connector which is provided on the on-vehicle sensor side and which extends in an extending direction is coupled to a wiring-side connector which is provided on the wiring side and which is to be coupled to the sensor-side connector while moving relatively with respect to the sensor-side connector in a coupling direction opposite to the extending direction. The fixing portion is integrally provided with the protection portion so as to be fixed on the on-vehicle sensor side.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: March 5, 2024
    Assignee: DENSO CORPORATION
    Inventors: Yasuhiro Kawashima, Taketo Harada, Keisuke Ueda
  • Patent number: 11886119
    Abstract: A material for forming an underlayer film according to the present invention is a material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the material including a cyclic olefin polymer which has a repeating structural unit [A] represented by Formula (1) and a repeating structural unit [B] represented by Formula (2), in which a molar ratio [A]/[B] of the structural unit [A] to the structural unit [B] in the cyclic olefin polymer is greater than or equal to 5/95 and less than or equal to 95/5.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: January 30, 2024
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Koji Inoue, Takashi Oda, Keisuke Kawashima
  • Patent number: 11822168
    Abstract: There is provided a photocurable composition including Component (A): epoxy compound, Component (B): acrylic ester compound, Component (C): isocyanate compound, Component (D): photobase generator, and Component (E): compound having a thiol group, in which Component (A) has two or more epoxy groups in one molecule, Component (B) has two or more acryloyl groups in one molecule, Component (C) has two or more isocyanate groups in one molecule, and Component (E) has two or more thiol groups in one molecule, and a ratio of a total mass of Component (A), Component (B), Component (C), and Component (D) to a mass of Component (E) is (Component (A)+Component (B)+Component (C)+Component (D)):Component (E)=74:26 to 20:80.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: November 21, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Kawashima, Koso Matsuno
  • Publication number: 20230185195
    Abstract: A material for forming an underlayer film according to the present invention is a material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the material including a cyclic olefin polymer which has a repeating structural unit [A] represented by Formula (1) and a repeating structural unit [B] represented by Formula (2), in which a molar ratio [A]/[B] of the structural unit [A] to the structural unit [B] in the cyclic olefin polymer is greater than or equal to 5/95 and less than or equal to 95/5.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 15, 2023
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji INOUE, Takashi ODA, Keisuke KAWASHIMA
  • Patent number: 11599025
    Abstract: Provided is a resin material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the resin material including a cyclic olefin polymer (I), in which a temperature at an intersection between a storage modulus (G?) curve and a loss modulus (G?) curve in a solid viscoelasticity of the resin material for forming an underlayer film which is as measured under conditions of a measurement temperature range of 30° C. to 300° C., a heating rate of 3° C./min, and a frequency of 1 Hz in a nitrogen atmosphere in a shear mode using a rheometer is higher than or equal to 40° C. and lower than or equal to 200°.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: March 7, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Keisuke Kawashima, Takashi Oda, Koji Inoue
  • Publication number: 20220363832
    Abstract: A photocurable composition contains: a component (A): (meth)acrylic acid ester having 2 to 6 (meth)acryloyl groups in one molecule, a component (B): a thiol compound having 2 to 4 thiol groups in one molecule, and a component (C): a photobase generator, in which a mass ratio of the component (A) to the component (B) is 66:34 to 33:67, inclusive, a functional group equivalent of the component (A) is 96 g/eq to 180 g/eq, inclusive, a functional group equivalent of the component (B) is 95 g/eq to 190 g/eq, inclusive, and a content of the component (C) is 0.5 parts by mass to 2 parts by mass with respect to 100 parts by mass of a total of the component (A), the component (B), and the component (C).
    Type: Application
    Filed: April 26, 2022
    Publication date: November 17, 2022
    Inventors: KEISUKE KAWASHIMA, HONAMI NAWA
  • Publication number: 20220314698
    Abstract: Provided is a tire having excellent rolling resistance and improved pass-by noise performance. The tire is a pneumatic tire comprising a side rubber provided on an outer side of a carcass in a tire width direction, in a sidewall portion, wherein a thickness of the side rubber in the tire width direction at a tire maximum width position is 1 mm or more, and a ratio 0° C. tan ?/30° C. tan ? of 0° C. tan ? to 30° C. tan ? of the side rubber is 2.00 or more, where the 0° C. tan ? is tan ? at 10 Hz and 0° C., and the 30° C. tan ? is tan ? at 10 Hz and 30° C.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 6, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke KAWASHIMA
  • Publication number: 20220314699
    Abstract: Provided is a tire having excellent rolling resistance and improved pass-by noise performance. A tire comprises a tread portion that includes a base rubber and a cap rubber located on an outer side of the base rubber in a tire radial direction, wherein a thickness of the base rubber in the tire radial direction is 1 mm or more, 30° C. tan ? of the base rubber is 0.20 or less, and a ratio 0° C. tan ?/30° C. tan ? of 0° C. tan ? to 30° C. tan ? of the base rubber is 2.90 or more, where the 30° C. tan ? is tan ? at 10 Hz and 30° C., and the 0° C. tan ? is tan ? at 10 Hz and 0° C.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 6, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke KAWASHIMA
  • Publication number: 20220055407
    Abstract: OD is defined by an outer diameter of the pneumatic tire, RW is defined by a rim width of a rim wheel assembled to the pneumatic tire, SW is defined by a tire width of the pneumatic tire, and RD is defined by a rim diameter of the pneumatic tire, the OD is 350 mm or more and 600 mm or less, the relation of 0.78?RW/SW?0.99; and the relation of 0.56?RD/OD?0.75 are satisfied.
    Type: Application
    Filed: December 12, 2019
    Publication date: February 24, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kohei SUZUKI, Masayuki HASHIMOTO, Keisuke KAWASHIMA
  • Publication number: 20220050379
    Abstract: A material for forming an underlayer film used in a multi-layer resist process satisfies: (i) an elemental composition ratio Re defined by the following mathematical formula (1) is 1.5 to 2.8; (ii) a glass transition temperature is 30° C. to 250° C.; and (iii) the material contains at least one (preferably two or more) resin having a specific structural unit. In the mathematical formula (1), NH is the number of hydrogen atoms in the solid content of the material for forming an underlayer film, NC is the number of carbon atoms in the solid content of the material for forming an underlayer film, and NO is the number of oxygen atoms in the solid content of the material for forming an underlayer film.
    Type: Application
    Filed: January 22, 2020
    Publication date: February 17, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji INOUE, Keisuke KAWASHIMA, Kenichi FUJII, Takashi ODA
  • Publication number: 20220024261
    Abstract: A tire including a land part partitioned between two main grooves extending in the tire circumferential direction S of the tire and resonators formed in the land part. A resonator has a cavity part separated from the two main grooves and is opened at the surface of the land part, a 1st sipe that is opened at one main groove and the cavity part, and a 2nd sipe that is opened at the other main groove and the cavity part. Depths of the main grooves are 3 mm or more and 6.5 mm or less. A volume value of the cavity part is more than 3 times or more and 5 times or less a sum of the cross-sectional areas of the two main grooves with the land part in between, and lengths of the 1st sipe and the 2nd sipe are 10 mm or more and 25 mm or less.
    Type: Application
    Filed: November 27, 2019
    Publication date: January 27, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke KAWASHIMA
  • Publication number: 20220016929
    Abstract: An outer diameter of the pneumatic tire is 350 mm or more and 600 mm or less, and as RW is defined by a rim width of a rim wheel assembled to the pneumatic tire and SW is defined by a tire width of the pneumatic tire, the relation of 0.78?RW/SW?0.99 is satisfied, and at least two circumferential main grooves extending to the tire circumferential direction are formed in the tread. The circumferential main groove is formed closer to a tire equatorial line than an outer end in the tire width direction of the belt layer.
    Type: Application
    Filed: December 13, 2019
    Publication date: January 20, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshiki NAKATA, Keisuke KAWASHIMA, Kohei SUZUKI
  • Publication number: 20210380747
    Abstract: There is provided a photocurable composition including Component (A): epoxy compound, Component (B): acrylic ester compound, Component (C): isocyanate compound, Component (D): photobase generator, and Component (E): compound having a thiol group, in which Component (A) has two or more epoxy groups in one molecule, Component (B) has two or more acryloyl groups in one molecule, Component (C) has two or more isocyanate groups in one molecule, and Component (E) has two or more thiol groups in one molecule, and a ratio of a total mass of Component (A), Component (B), Component (C), and Component (D) to a mass of Component (E) is (Component (A)+Component (B)+Component (C)+Component (D)):Component (E)=74:26 to 20:80.
    Type: Application
    Filed: September 30, 2019
    Publication date: December 9, 2021
    Inventors: KEISUKE KAWASHIMA, KOSO MATSUNO
  • Patent number: 11053328
    Abstract: Provided is a photocurable composition including a component (A) which is an acrylic ester compound containing one or more acryloyl groups in one molecule; a component (B) which is an acrylic ester compound containing one or more acryloyl groups and one or more epoxy groups in one molecule; a component (C) which is a compound containing two or more thiol groups in one molecule; a component (D) which is a photoradical generator; and a component (E) which is a photobase generator, in which a ratio between a total mass of the component (A) and the component (B) and a mass of the component (C) is in a range of 67.8:32.2 to 88.0:12.0, inclusive.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: July 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Kawashima, Koso Matsuno
  • Publication number: 20200325252
    Abstract: Provided is a photocurable composition including a component (A) which is an acrylic ester compound containing one or more acryloyl groups in one molecule; a component (B) which is an acrylic ester compound containing one or more acryloyl groups and one or more epoxy groups in one molecule; a component (C) which is a compound containing two or more thiol groups in one molecule; a component (D) which is a photoradical generator; and a component (E) which is a photobase generator, in which a ratio between a total mass of the component (A) and the component (B) and a mass of the component (C) is in a range of 67.8:32.2 to 88.0:12.0, inclusive.
    Type: Application
    Filed: April 1, 2020
    Publication date: October 15, 2020
    Inventors: KEISUKE KAWASHIMA, KOSO MATSUNO
  • Publication number: 20200316996
    Abstract: Provided is a tire having good fuel efficiency that, even though a resin material is used therein, has improved ride comfort and dry handling performance without wet performance deterioration. The tire includes an annular tire frame (10), a reinforcement layer (20) outward of the tire frame (10) in a tire radial direction, and tread rubber (30) outward of the reinforcement layer (20) in the tire radial direction. The reinforcement layer (20) includes a reinforcement member (21) coated with a resin composition containing 50-100 mass % of a resin material. For the tread rubber (30), a storage modulus (E?0° C.) and loss tangent (tan ?0° C.) during 1% strain at 0° C. are no greater than 30 MPa and 0.5, respectively, and a value (tan ?30° C.-tan ?60° C.) obtained by subtracting a loss tangent during 1% strain at 60° C. from a loss tangent during 1% strain at 30° C. is no greater than 0.08.
    Type: Application
    Filed: February 22, 2017
    Publication date: October 8, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke KAWASHIMA
  • Publication number: 20200264511
    Abstract: A material for forming an underlayer film according to the present invention is a material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the material including a cyclic olefin polymer which has a repeating structural unit [A] represented by Formula (1) and a repeating structural unit [B] represented by Formula (2), in which a molar ratio [A]/[B] of the structural unit [A] to the structural unit [B] in the cyclic olefin polymer is greater than or equal to 5/95 and less than or equal to 95/5.
    Type: Application
    Filed: May 30, 2018
    Publication date: August 20, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Koji INOUE, Takashi ODA, Keisuke KAWASHIMA
  • Publication number: 20200241419
    Abstract: Provided is a resin material for forming an underlayer film which is used to form a resist underlayer film used in a multi-layer resist process, the resin material including a cyclic olefin polymer (I), in which a temperature at an intersection between a storage modulus (G?) curve and a loss modulus (G?) curve in a solid viscoelasticity of the resin material for forming an underlayer film which is as measured under conditions of a measurement temperature range of 30° C. to 300° C., a heating rate of 3° C./min, and a frequency of 1 Hz in a nitrogen atmosphere in a shear mode using a rheometer is higher than or equal to 40° C. and lower than or equal to 200°.
    Type: Application
    Filed: May 30, 2018
    Publication date: July 30, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Keisuke KAWASHIMA, Takashi ODA, Koji INOUE
  • Publication number: 20190276647
    Abstract: Provided is a tire that has excellent high-speed durability even though a resin material is used therein. The tire includes a tire frame (10) having an annular shape, a reinforcement layer (20) located outward of the tire frame (10) in a tire radial direction, and tread rubber (30) located outward of the reinforcement layer (20) in the tire radial direction. The reinforcement layer (20) includes a reinforcement member (21) that is coated with a resin composition containing from 50 mass % to 100 mass % of a resin material. The tread rubber (30) has a loss tangent (tan ?60° C.) during 1% strain at 60° C. and a storage modulus (E?30° C. (MPa)) during 1% strain at 30° C. that satisfy a relationship in a formula: 27.5×tan ?60° C.+1.125?E?30° C.?27.5×tan ?60° C.+11.25.
    Type: Application
    Filed: February 22, 2017
    Publication date: September 12, 2019
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keisuke KAWASHIMA