Patents by Inventor Hidehito Saegusa

Hidehito Saegusa 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: 20040200804
    Abstract: A member of processing a quartz member for a plasma processing device capable of suppressing the production of particles at the beginning of the use thereof and the production of chips thereafter, the quartz member for the plasma processing device, and the plasma processing device having the quartz member mounted thereon, the method comprising the steps of removing a large number of cracks 155 produced, after a diamond grinding, in the quartz member 151 for the plasma processing device used for a shield ring and a focus ring by performing a surface processing with abrasive grains of, for example, #320 to 400 in grain size, and performing the surface processing by using abrasive grains of smaller grain size to remove ruptured layers 163 while maintaining irregularities capable of adhering and holding deposit thereto.
    Type: Application
    Filed: March 25, 2004
    Publication date: October 14, 2004
    Inventors: Norikazu Sugiyama, Hidehito Saegusa, Nobuyuki Okayama, Shunichi Iimuro, Kosuke Imafuku, Nobuyuki Nagayama, Kouji Mitsuhashi, Hiroyuki Nakayama, Yahui Huang
  • Patent number: 6733620
    Abstract: The present invention provides a process apparatus including an airtight process vessel, an exhaust system for exhausting gas from the process vessel, and a baffle plate for partitioning the process vessel into a process chamber for processing an object and an exhaust passage communicating with the exhaust system, the baffle plate has a plurality of slits through which the process chamber and the exhaust passage communicate with each other, and each of the slits has a tapered surface on an inner surface toward the process chamber, the tapered surface corresponding to not less than ¼ of a depth of the slit.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 11, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Norikazu Sugiyama, Nobuyuki Okayama, Hidehito Saegusa, Jun Ozawa
  • Patent number: 6334983
    Abstract: A processing system has an upper electrode with gas discharge holes of a shape corresponding to the external we of insulating members. The insulating members are formed of a poly(ether etherketone) resin, a polyimide resin, a poly(ether imide) resin or the like. Each insulating member has a step at its outer surface and an internal longitudinal through hole tapered to expand toward the processing chamber. The insulating members are pressed in the gas discharge holes to bring the steps into contact with shoulders formed in the sidewalls of the gas discharge holes. A part of each insulting member, as fitted in the gas discharge hole, projects from a surface of the upper electrode that faces a susceptor.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: January 1, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Nobuyuki Okayama, Hidehito Saegusa, Jun Ozawa, Daisuke Hayashi, Naoki Takayama, Koichi Kazama
  • Patent number: RE39939
    Abstract: A processing system has an upper electrode with gas discharge holes of a shape corresponding to the external we of insulating members. The insulating members are formed of a poly(ether etherketone) resin, a polyimide resin, a poly (ether imide) resin or the like. Each insulating member has a step at its outer surface and an internal longitudinal through hole tapered to expand toward the processing chamber. The insulating members are pressed in the gas discharge holes to bring the steps into contact with shoulders formed in the sidewalls of the gas discharge holes. A part of each insulting member, as fitted in the gas discharge hole, projects from a surface of the upper electrode that faces a susceptor.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: December 18, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Nobuyuki Okayama, Hidehito Saegusa, Jun Ozawa, Daisuke Hayashi, Naoki Takayama, Koichi Kazama
  • Patent number: RE39969
    Abstract: A processing system has an upper electrode with gas discharge holes of a shape corresponding to the external we of insulating members. The insulating members are formed of a poly(ether etherketone) resin, a polyimide resin, a poly (ether imide) resin or the like. Each insulating member has a step at its outer surface and an internal longitudinal through hole tapered to expand toward the processing chamber. The insulating members are pressed in the gas discharge holes to bring the steps into contact with shoulders formed in the sidewalls of the gas discharge holes. A part of each insulating member, as fitted in the gas discharge hole, projects from a surface of the upper electrode that faces a susceptor.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: January 1, 2008
    Assignee: Tokyo Electron Limited
    Inventors: Nobuyuki Okayama, Hidehito Saegusa, Jun Ozawa, Daisuke Hayashi, Naoki Takayama, Koichi Kazama
  • Patent number: RE40046
    Abstract: A processing system has an upper electrode with gas discharge holes of a shape corresponding to the external we of insulating members. The insulating members are formed of a poly(ether etherketone) resin, a polyimide resin, a poly(ether imide) resin or the like. Each insulating member has a step at its outer surface and an internal longitudinal through hole tapered to expand toward the processing chamber. The insulating members are pressed in the gas discharge holes to bring the steps into contact with shoulders formed in the sidewalls of the gas discharge holes. A part of each insulating member, as fitted in the gas discharge hole, projects from a surface of the upper electrode that faces a susceptor.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: February 12, 2008
    Assignee: Tokyo Electron Limited
    Inventors: Nobuyuki Okayama, Hidehito Saegusa, Jun Ozawa, Daisuke Hayashi, Naoki Takayama, Koichi Kazama