Patents by Inventor Minako Azumi

Minako Azumi 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).

  • CALCIUM FLUORIDE MEMBER, METHOD FOR PRODUCING SAME, AND METHOD FOR PRESSURE-BONDING CALCIUM FLUORIDE CRYSTAL
    Publication number: 20200010977
    Abstract: The calcium fluoride member includes a first member made from monocrystalline calcium fluoride and a second member made from monocrystalline or polycrystalline calcium fluoride. The first member and the second member is pressure-bonded together to form the calcium fluoride member.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Applicant: NIKON CORPORATION
    Inventors: Naoyasu UEHARA, Minako AZUMI, Shitoka SUZUKI
  • Calcium fluoride member, method for producing same, and method for pressure-bonding calcium fluoride crystal
    Patent number: 10458042
    Abstract: The calcium fluoride member includes a first member made from monocrystalline calcium fluoride and a second member made from monocrystalline or polycrystalline calcium fluoride. The first member and the second member is pressure-bonded together to form the calcium fluoride member.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 29, 2019
    Assignee: NIKON CORPORATION
    Inventors: Naoyasu Uehara, Minako Azumi, Shitoka Suzuki
  • CALCIUM FLUORIDE MEMBER, METHOD FOR PRODUCING SAME, AND METHOD FOR PRESSURE-BONDING CALCIUM FLUORIDE CRYSTAL
    Publication number: 20160362814
    Abstract: The calcium fluoride member includes a first member made from monocrystalline calcium fluoride and a second member made from monocrystalline or polycrystalline calcium fluoride. The first member and the second member is pressure-bonded together to form the calcium fluoride member.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 15, 2016
    Applicant: NIKON CORPORATION
    Inventors: Naoyasu UEHARA, Minako AZUMI, Shitoka SUZUKI
  • Method for producing optical member
    Patent number: 6994747
    Abstract: An optical member manufacturing method of the present invention has a growth step of growing an ingot of a fluoride crystal, a plane orientation measurement step of measuring two or more crystal plane orientations of the ingot, a cutout step of cutting out an optical material from the ingot along any one of the crystal plane orientations obtained in the plane orientation measurement step, and a machining step of performing predetermined machining processing on the optical material to obtain an optical member.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: February 7, 2006
    Assignee: Nikon Corporation
    Inventors: Hiroyuki Hiraiwa, Shigeru Sakuma, Minako Azumi, Masaaki Mochida
  • Method for producing optical member
    Publication number: 20040089023
    Abstract: An optical member manufacturing method of the present invention has a growth step of growing an ingot of a fluoride crystal, a plane orientation measurement step of measuring two ormore crystal plane orientations of the ingot, a cutout step of cutting out an optical material from the ingot along any one of the crystal plane orientations obtained in the plane orientation measurement step, and a machining step of performing predetermined machining processing on the optical material to obtain an optical member.
    Type: Application
    Filed: September 16, 2003
    Publication date: May 13, 2004
    Inventors: Hiroyuki Hiraiwa, Shigeru Sakuma, Minako Azumi, Masaaki Mochida