Patents by Inventor Koji Hishitani

Koji Hishitani 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: 12257821
    Abstract: A radio-wave anti-reflection sheet has a substantially non-tacky first major surface and an opposing substantially tacky second major surface and includes a first polymeric foam layer disposed between the first and second major surfaces, and a second polymeric foam layer disposed between the second major surface and the first polymeric foam layer. The first polymeric foam has a thickness from 0.05 to 3.0 mm and a density from 0.20 to 0.90 g/cm3. The second polymeric foam layer has a thickness from 0.05 to 3.0 mm and a density greater than 0.10 g/cm3 and less than the density of the first polymeric foam layer. A tape includes the radio-wave anti-reflection sheet disposed on a release liner. A vehicle member includes a multilayer substrate and the radio-wave anti-reflection sheet disposed on the multilayer substrate.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: March 25, 2025
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Masataka Shinagawa, Keiichiro Horikoshi, Koji Hishitani, Masaaki Takeda
  • Publication number: 20240262076
    Abstract: A radio-wave anti-reflection sheet has a substantially non-tacky first major surface and an opposing substantially tacky second major surface and includes a first polymeric foam layer disposed between the first and second major surfaces, and a second polymeric foam layer disposed between the second major surface and the first polymeric foam layer. The first polymeric foam has a thickness from 0.05 to 3.0 mm and a density from 0.20 to 0.90 g/cm3. The second polymeric foam layer has a thickness from 0.05 to 3.0 mm and a density greater than 0.10 g/cm3 and less than the density of the first polymeric foam layer. A tape includes the radio-wave anti-reflection sheet disposed on a release liner. A vehicle member includes a multilayer substrate and the radio-wave anti-reflection sheet disposed on the multilayer substrate.
    Type: Application
    Filed: June 16, 2022
    Publication date: August 8, 2024
    Inventors: Masataka Shinagawa, Keiichiro Horikoshi, Koji Hishitani, Masaaki Takeda
  • Publication number: 20230236286
    Abstract: A radio wave reflection reducing sheet provided with a laminate having a first primary surface and a second primary surface is disclosed. The laminate has: a first resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.10 to 0.85 g/cm3, and a second resin foam layer having a thickness from 0.05 to 3.00 mm and a density from 0.20 to 0.90 g/cm3. The density of the second resin foam layer is greater than the density of the first resin foam layer. The first resin foam layer and the second resin foam layer are disposed in this order from the first primary surface side.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 27, 2023
    Inventors: Masataka Shinagawa, Tomoaki Uchiya, Koji Hishitani, Naoyuki Toriumi, Masaaki Takeda