Patents by Inventor Atsushi Fukazawa

Atsushi Fukazawa 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).

  • Bonding method of crystal body
    Patent number: 10519567
    Abstract: To improve the production yield rate of a synthesis corundum cell superior in translucency, chemical resistance or an optical component comprising calcium fluoride. On the other end side of synthetic corundum piece, spacer intervenes between the surfaces which will be bonded. The spacer is crushed flat by pressure force which effects the other end side of synthetic corundum piece in the case of heat-treatment after the temporary bonding. Thereby, the spacer does not disturb the synthetic optical contacting or chemical pressurized fusion bonding state of corundum piece.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 31, 2019
    Assignee: JAPAN CELL CO., LTD.
    Inventors: Atsushi Fukazawa, Satoshi Hayata, Kazuyuki Sato, Kiminori Omura, Hiromu Kasai
  • BONDING METHOD OF CRYSTAL BODY
    Publication number: 20180298522
    Abstract: To improve the production yield rate of a synthesis corundum cell superior in translucency, chemical resistance or an optical component comprising calcium fluoride. On the other end side of synthetic corundum piece, spacer intervenes between the surfaces which will be bonded. The spacer is crushed flat by pressure force which effects the other end side of synthetic corundum piece in the case of heat-treatment after the temporary bonding. Thereby, the spacer does not disturb the synthetic optical contacting or chemical pressurized fusion bonding state of corundum piece.
    Type: Application
    Filed: March 8, 2017
    Publication date: October 18, 2018
    Inventors: Atsushi Fukazawa, Satoshi Hayata, Kazuyuki Sato, Kiminori Omura, Hiromu Kasai