Patents by Inventor Sunao Seko

Sunao Seko 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: 7072578
    Abstract: A carbon wire heating element sealing heater is provided. Therein, a carbon wire heating element using carbon fibers is sealed in a quartz glass member, wherein absorption water quantity of the carbon wire heating element is 2×10?3 g/cm3 or less.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: July 4, 2006
    Assignees: Toshiba Ceramics Co., Ltd., Tokyo Electron Limited
    Inventors: Norihiko Saito, Hiroyuki Honma, Hiroshi Mori, Eiichi Toya, Tomio Konn, Tomohiro Nagata, Sunao Seko, Akira Otsu, Takanori Saito, Ken Nakao, Kazutoshi Miura, Harunari Hasegawa, George Hoshi, Katsutoshi Ishi
  • Publication number: 20050133494
    Abstract: A carbon wire heating element sealing heater is provided. Therein, a carbon wire heating element using carbon fibers is sealed in a quartz glass member, wherein absorption water quantity of the carbon wire heating element is 2×10?3 g/cm3 or less.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 23, 2005
    Inventors: Norihiko Saito, Hiroyuki Honma, Hiroshi Mori, Eiichi Toya, Tomio Konn, Tomohiro Nagata, Sunao Seko, Akira Otsu, Takanori Saito, Ken Nakao, Kazutoshi Miura, Harunari Hasegawa, George Hoshi, Katsutoshi Ishi
  • Patent number: 6885814
    Abstract: A carbon wire heating element sealing heater is provided. Therein, a carbon wire heating element using carbon fibers is sealed in a quartz glass member, wherein absorption water quantity of the carbon wire heating element is 2×10?3 g/cm3 or less.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: April 26, 2005
    Assignees: Toshiba Ceramics Co., Ltd., Tokyo Electron Limited
    Inventors: Takanori Saito, Hiroshi Mori, Akira Otsu, Norihiko Saito, Hiroyuki Honma, Eiichi Toya, Tomio Konn, Tomohiro Nagata, Ken Nakao, Kazutoshi Miura, Harunari Hasegawa, George Hoshi, Katsutoshi Ishi, Sunao Seko
  • Publication number: 20030180034
    Abstract: A carbon wire heating element sealing heater is provided. Therein, a carbon wire heating element using carbon fibers is sealed in a quartz glass member, wherein absorption water quantity of the carbon wire heating element is 2×10−3 g/cm3 or less.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 25, 2003
    Applicants: TOSHIBA CERAMICS CO., LTD., TOKYO ELECTRON LIMITED
    Inventors: Takanori Saito, Hiroshi Mori, Akira Otsu, Norihiko Saito, Hiroyuki Honma, Eiichi Toya, Tomio Konn, Tomohiro Nagata, Ken Nakao, Kazutoshi Miura, Harunari Hasegawa, George Hoshi, Katsutoshi Ishi, Sunao Seko
  • Patent number: 6584279
    Abstract: A heater sealed with carbon wire heating element has a carbon wire heating element sealed with a quartz glass member, the carbon wire being prepared by knitting carbon single fibers into a knitted cord of a braid, each wire having a crystal structure with a interlayer spacing d (002) thereof being 0.343 or less and crystallite size Lc (002) thereof being 4.0 nm or more.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: June 24, 2003
    Assignees: Toshiba Ceramics Co., Ltd., Tokyo Electron Limited
    Inventors: Sunao Seko, Tomio Konn, Tomohiro Nagata, Norihiko Saito, Hideyuki Yokoyama, Masakazu Kobayashi, Takanori Saito, Ken Nakao
  • Patent number: 6516143
    Abstract: The fluid heating apparatus, in accordance with the present invention, developed to solve the technological problems described above is characterized by comprising at least a heating tube heating fluid to be supplied from fluid supply source, a heater section spirally formed on an outer periphery of the heating tube and a housing accommodating the heating tube and the heater section, wherein the heater section comprises a carbon wire heating element and a quartz glass tube in which the carbon wire heating element is enclosed.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: February 4, 2003
    Assignees: Toshiba Ceramics Co., Ltd., Tokyo Electron Limited
    Inventors: Eiichi Toya, Tomio Konn, Tomohiro Nagata, Sunao Seko, Takanori Saito, Kazutoshi Miura, Harunari Hasegawa, Joji Hoshi, Katsutoshi Ishii
  • Publication number: 20020023919
    Abstract: The fluid heating apparatus, in accordance with the present invention, developed to solve the technological problems described above is characterized by comprising at least a heating tube heating fluid to be supplied from fluid supply source, a heater section spirally formed on an outer periphery of the heating tube and a housing accommodating the heating tube and the heater section, wherein the heater section comprises a carbon wire heating element and a quartz glass tube in which the carbon wire heating element is enclosed.
    Type: Application
    Filed: March 29, 2001
    Publication date: February 28, 2002
    Applicant: TOSHIBA CERAMICS CO., LTD.
    Inventors: Eiichi Toya, Tomio Konn, Tomohiro Nagata, Sunao Seko, Takanori Saito, Kazutoshi Miura, Harunari Hasegawa, Joji Hoshi, Katsutoshi Ishii
  • Publication number: 20020001460
    Abstract: The heater sealed with a carbon wire heating element of the present invention has a carbon wire heating element sealed within a quartz glass member, said carbon wire being prepared by knitting carbon single fibers into a knitted cord or a braid, each wire having a crystal structure with a interlayer spacing d (002) thereof being 0.343 or less and a crystallite size Lc (002) thereof being 4.0 nm or more.
    Type: Application
    Filed: May 25, 2001
    Publication date: January 3, 2002
    Applicant: TOSHIBA CERAMICS CO., LTD. & TOKYO ELECTRON LIMITED
    Inventors: Sunao Seko, Tomio Konn, Tomohiro Nagata, Norihiko Saito, Hideyuki Yokoyama, Masakazu Kobayashi, Takanori Saito, Ken Nakao
  • Patent number: 6204488
    Abstract: A sealing terminal includes internal connection lines which are connected to heating elements and external connection lines via which power is supplied. A quartz glass body includes a plurality of grooves in its outer surface to retain the internal and external connection lines in place. Conductive foils are used to connect the internal and external lines which are housed in a quartz glass tube so that the ends of the lines project out of the respective ends thereof. A plug is disposed in the lower end of the tube to close the same. Spark generation is prevented while a low electrical resistance sealed terminal which is simple in structure and quick and easy to assemble, results.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: March 20, 2001
    Assignees: Toshiba Ceramics Co., Ltd, Tokyo Electron Limited
    Inventors: Eiichi Toya, Tomio Konn, Tomohiro Nagata, Norihiko Saito, Sunao Seko, Hideyuki Yokoyama, Ken Nakao, Takanori Saito, Hisaei Osanai, Toshiyuki Makiya