Patents by Inventor Seiichi Kashimura

Seiichi Kashimura 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: 20260097417
    Abstract: A silicone coating film provided as a surface layer of an irradiated object exposed to ultraviolet irradiation, includes a silicone rubber as a base material and titanium oxide particles with an average particle size of less than 100 nm. A laminated structure includes a first layer including a silicone rubber as a base material, and a second layer laminated on the first layer, wherein the second layer is the silicone coating film.
    Type: Application
    Filed: October 7, 2025
    Publication date: April 9, 2026
    Applicant: Proterial, Ltd.
    Inventors: Oga NORIMASA, Hideyuki SUZUKI, Seiichi KASHIMURA, Naoto TERAKI, Masamichi KISHI, Tatsuya SASAMURA, Kazufumi SUENAGA, Toshimitsu ONISHI
  • Patent number: 12476449
    Abstract: A boot-attached cable is composed of a cable, and a cable boot secured to an end of the cable by an adhesive layer. The adhesive layer includes an additive material comprising at least one of an organic substant and an inorganic substance, capable of shielding against ultraviolet light.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: November 18, 2025
    Assignee: Proterial, Ltd.
    Inventors: Kazufumi Suenaga, Seiichi Kashimura, Takanobu Watanabe
  • Patent number: 12385840
    Abstract: A resin composition quality controlling method includes a step of measuring a Raman spectrum of a resin composition composed of TiO2 particles dispersed in a base material mainly composed of a silicone rubber by irradiating the resin composition with laser, and a step of determining a concentration of the TiO2 particles in the resin composition based on an intensity of a fluorescence spectrum in the Raman spectrum.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: August 12, 2025
    Assignee: Proterial, Ltd.
    Inventors: Kazufumi Suenaga, Seiichi Kashimura
  • Patent number: 12372471
    Abstract: A resin composition quality controlling method includes a step of measuring a Raman spectrum of a resin composition composed of first TiO2 particles of anatase type TiO2 and second TiO2 particles of rutile type TiO2 by irradiation with laser, and determining a concentration ratio of the first TiO2 particles to the second TiO2 particles in the resin composition based on an intensity of a first peak assigned to lattice vibration in the anatase type TiO2 and an intensity of a second peak assigned to lattice vibration in the rutile type TiO2 in the Raman spectrum.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: July 29, 2025
    Assignee: Proterial, Ltd.
    Inventors: Kazufumi Suenaga, Seiichi Kashimura, Koki Hirano
  • Publication number: 20240321480
    Abstract: An insulated electric wire is provided with a metal conductor, and an insulation coating layer covering an outer periphery of the metal conductor. The insulation coating layer includes a lubricant layer including fluorine-based fine particles as a lubricant as an outermost layer, and an enamel insulation layer including fluorine-based fine particles as an inner layer with respect to the lubricant layer.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 26, 2024
    Applicant: Proterial, Ltd.
    Inventors: Hideyuki SUZUKI, Naoto TERAKI, Masamichi KISHI, Seiichi KASHIMURA, Kazufumi SUENAGA, Kanako SUGANUMA
  • Publication number: 20240296971
    Abstract: A laminate structure includes a first layer as a substrate and a second layer provided on the first layer. The second layer is composed of a rubber composition including a rubber component, first fine particles for providing a surface with irregularity, and second fine particles for shielding UV-C light. When performing Raman mapping analysis on a first peak derived from oscillation of the second fine particles in Raman scattering spectrum obtained by Raman scattering measurement of the second layer, the second layer includes a region where an intensity of the first peak is greater in an area where the first fine particles are not present than an area where the first fine particles are present.
    Type: Application
    Filed: April 25, 2024
    Publication date: September 5, 2024
    Applicant: Proterial, Ltd.
    Inventors: Seiichi KASHIMURA, Kazufumi SUENAGA, Tamotsu KIBE, Kanako SUGANUMA
  • Patent number: 12073964
    Abstract: A laminate structure includes a first layer as a substrate and a second layer provided on the first layer. The second layer is composed of a rubber composition including a rubber component, first fine particles for providing a surface with irregularity, and second fine particles for shielding UV-C light. When performing Raman mapping analysis on a first peak derived from oscillation of the second fine particles in Raman scattering spectrum obtained by Raman scattering measurement of the second layer, the second layer includes a region where an intensity of the first peak is greater in an area where the first fine particles are not present than an area where the first fine particles are present.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: August 27, 2024
    Assignee: Proterial, Ltd.
    Inventors: Seiichi Kashimura, Kazufumi Suenaga, Tamotsu Kibe, Kanako Suganuma
  • Publication number: 20240110077
    Abstract: A resin composition includes silicone rubber as a base material, silicone resin fine particles, metal oxide fine particles, and nanosilica fine particles. A laminate structure includes a first layer including silicone rubber as a base material, and a second layer laminated to the first layer and including the resin composition. A cable or tube is provided with the laminate structure. A method of manufacturing the resin composition includes adding nanosilica fine particles to a mixture of silicone rubber, titanium dioxide fine particles, and an organic solvent, followed by adding silicone resin fine particles.
    Type: Application
    Filed: September 19, 2023
    Publication date: April 4, 2024
    Inventors: Kanako SUGANUMA, Seiichi KASHIMURA, Hideyuki SUZUKI, Masamichi KISHI, Naoto TERAKI
  • Patent number: 11891535
    Abstract: A coating film is provided in a cable, a medical hollow tube, a molded article and a hollow tube. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: February 6, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Naoto Teraki, Takanobu Watanabe, Yuriko Kiyokane
  • Patent number: 11845881
    Abstract: A cable includes a sheath, and a coating film covering a circumference of the sheath, the coating film adhering to the sheath. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: December 19, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Naoto Teraki, Takanobu Watanabe, Yuriko Kiyokane
  • Patent number: 11779193
    Abstract: A coating film is provided in a cable, a medical hollow tube, a molded article and a hollow tube. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: October 10, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Naoto Teraki, Takanobu Watanabe, Yuriko Kiyokane
  • Publication number: 20230208126
    Abstract: A boot-attached cable is composed of a cable, and a cable boot secured to an end of the cable by an adhesive layer. The adhesive layer includes an additive material comprising at least one of an organic substant and an inorganic substance, capable of shielding against ultraviolet light.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 29, 2023
    Inventors: Kazufumi SUENAGA, Seiichi KASHIMURA, Takanobu WATANABE
  • Patent number: 11655587
    Abstract: A cable includes a sheath, and a coating film covering a circumference of the sheath. The coating film adheres to the sheath. The static friction coefficient of a surface of the coating film is smaller than the static friction coefficient of a surface of the sheath. The adhesion strength between the sheath and the coating film is 0.30 MPa or more.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 23, 2023
    Assignee: PROTERIAL, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Takanobu Watanabe, Kimika Kudo, Masashi Arai
  • Publication number: 20230093012
    Abstract: A resin composition quality controlling method includes a step of measuring a Raman spectrum of a resin composition composed of TiO2 particles dispersed in a base material mainly composed of a silicone rubber by irradiating the resin composition with laser, and a step of determining a concentration of the TiO2 particles in the resin composition based on an intensity of a fluorescence spectrum in the Raman spectrum.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 23, 2023
    Inventors: Kazufumi SUENAGA, Seiichi KASHIMURA
  • Publication number: 20230077911
    Abstract: A resin composition quality controlling method includes a step of measuring a Raman spectrum of a resin composition composed of first TiO2 particles of anatase type TiO2 and second TiO2 particles of rutile type TiO2 by irradiation with laser, and determining a concentration ratio of the first TiO2 particles to the second TiO2 particles in the resin composition based on an intensity of a first peak assigned to lattice vibration in the anatase type TiO2 and an intensity of a second peak assigned to lattice vibration in the rutile type TiO2 in the Raman spectrum.
    Type: Application
    Filed: August 26, 2022
    Publication date: March 16, 2023
    Inventors: Kazufumi SUENAGA, Seiichi KASHIMURA, Koki HIRANO
  • Publication number: 20220254543
    Abstract: A laminate structure includes a first layer as a substrate and a second layer provided on the first layer. The second layer is composed of a rubber composition including a rubber component, first fine particles for providing a surface with irregularity, and second fine particles for shielding UV-C light. When performing Raman mapping analysis on a first peak derived from oscillation of the second fine particles in Raman scattering spectrum obtained by Raman scattering measurement of the second layer, the second layer includes a region where an intensity of the first peak is greater in an area where the first fine particles are not present than an area where the first fine particles are present.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 11, 2022
    Inventors: Seiichi KASHIMURA, Kazufumi SUENAGA, Tamotsu KIBE, Kanako SUGANUMA
  • Patent number: 11401439
    Abstract: A coating film is provided in a cable, a medical hollow tube, a molded article and a hollow tube. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: August 2, 2022
    Assignee: HITACHI METALS, LTD
    Inventors: Seiichi Kashimura, Masamichi Kishi, Naoto Teraki, Takanobu Watanabe, Yuriko Kiyokane
  • Publication number: 20220145127
    Abstract: A coating film is provided in a cable, a medical hollow tube, a molded article and a hollow tube. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: Seiichi KASHIMURA, Masamichi KISHI, Naoto TERAKI, Takanobu WATANABE, Yuriko KIYOKANE
  • Publication number: 20220112657
    Abstract: A cable includes a sheath, and a coating film covering a circumference of the sheath. The coating film adheres to the sheath. The static friction coefficient of a surface of the coating film is smaller than the static friction coefficient of a surface of the sheath. The adhesion strength between the sheath and the coating film is 0.30 MPa or more.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Seiichi KASHIMURA, Masamichi KISHI, Takanobu WATANABE, Kimika KUDO, Masashi ARAI
  • Patent number: 11286615
    Abstract: A cable includes a sheath, and a coating film covering a circumference of the sheath. The coating film adheres to the sheath. The static friction coefficient of a surface of the coating film is smaller than the static friction coefficient of a surface of the sheath. The adhesion strength between the sheath and the coating film is 0.30 MPa or more.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 29, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Takanobu Watanabe, Kimika Kudo, Masashi Arai