Patents by Inventor Koichiro Iwahori

Koichiro Iwahori 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: 11177399
    Abstract: The nanoparticle assembly includes nanoparticles having an average primary particle size of 60 nm or less, and the nanoparticle assembly has a diameter of more than 500 nm and 5 ?m or less.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 16, 2021
    Assignees: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY, NIKON CORPORATION
    Inventors: Takao Namihira, Yasutaka Nishi, Makoto Nakazumi, Koichiro Iwahori
  • Publication number: 20190165190
    Abstract: The nanoparticle assembly includes nanoparticles having an average primary particle size of 60 nm or less, and the nanoparticle assembly has a diameter of more than 500 nm and 5 ?m or less.
    Type: Application
    Filed: January 31, 2019
    Publication date: May 30, 2019
    Applicants: National University Corporation Kumamoto University, NIKON CORPORATION
    Inventors: Takao NAMIHIRA, Yasutaka NISHI, Makoto NAKAZUMI, Koichiro IWAHORI
  • Patent number: 9719164
    Abstract: An amount of nitrogen in a compound film is controlled. A method of manufacturing compound film comprising forming films laminated on a substrate placed at a film forming chamber is provided. According to the method of manufacturing compound film, a first compound layer including one or more elements selected from metal elements and semimetal elements and oxygen element and a second compound layer including one or more elements and nitrogen element are laminated alternately. The first compound layer is formed by a Filtered Arc Ion Plating method and the second compound layer is formed by a sputtering method.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: August 1, 2017
    Assignee: NIKON CORPORATION
    Inventors: Tsukasa Kishiume, Koichiro Iwahori
  • Publication number: 20160060747
    Abstract: An amount of nitrogen in a compound film is controlled. A method of manufacturing compound film comprising forming films laminated on a substrate placed at a film forming chamber is provided. According to the method of manufacturing compound film, a first compound layer including one or more elements selected from metal elements and semimetal elements and oxygen element and a second compound layer including one or more elements and nitrogen element are laminated alternately. The first compound layer is formed by a Filtered Arc Ion Plating method and the second compound layer is formed by a sputtering method.
    Type: Application
    Filed: October 29, 2015
    Publication date: March 3, 2016
    Applicant: NIKON CORPORATION
    Inventors: Tsukasa KISHIUME, Koichiro IWAHORI
  • Patent number: 9206527
    Abstract: A ta-C thin film (1A) is formed by laminating a first unit structure (11) and a second unit structure (12) in this order on a base material (10). The first unit structure (11) has mutually different amounts of sp3 bonding in a first layer (11a) and a second layer (11b), and has mutually different amounts of sp3 bonding in the second layer (11b) and a third layer (11c). The second unit structure (12) has mutually different amounts of sp3 bonding in a first layer (12a) and a second layer (12b), and has mutually different amounts of sp3 bonding in the second layer (12b) and a third layer (12c).
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: December 8, 2015
    Assignee: NIKON CORPORATION
    Inventor: Koichiro Iwahori
  • Patent number: 8569095
    Abstract: An optical device comprises a substrate provided with an insulation portion transmitting light, a first electrode and a second electrode transmitting light provided at said substrate sandwiching said insulation portion, and an output circuit to output voltage to said first electrode and second electrode so as to change an electric field of a surface of said substrate, wherein said first and second electrodes comprise main component which is identical with said insulation portion, and an electric resistivity is lower with respect to said insulation portion.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Nikon Corporation
    Inventors: Mitsuhiro Okazaki, Koichiro Iwahori
  • Publication number: 20120058366
    Abstract: Provided is a manufacturing method for manufacturing a film-formed article by using sputtering to form a film including a constituent element of a target on a substrate. The manufacturing method comprises setting a distance d between the target and the substrate in a range from 0.5 times to 1.5 times a mean free path of the constituent element in the sputtering gas.
    Type: Application
    Filed: November 15, 2011
    Publication date: March 8, 2012
    Applicant: NIKON CORPORATION
    Inventors: Koichiro IWAHORI, Makoto NAKAZUMI
  • Publication number: 20110007393
    Abstract: An optical device comprises a substrate provided with an insulation portion transmitting light, a first electrode and a second electrode transmitting light provided at said substrate sandwiching said insulation portion, and an output circuit to output voltage to said first electrode and second electrode so as to change an electric field of a surface of said substrate, wherein said first and second electrodes comprise main component which is identical with said insulation portion, and an electric resistivity is lower with respect to said insulation portion.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 13, 2011
    Applicant: NIKON CORPORATION
    Inventors: Mitsuhiro OKAZAKI, Koichiro Iwahori