Patents by Inventor Ukon Ishihara

Ukon Ishihara 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).

  • Cooking top plate
    Patent number: 7718929
    Abstract: A substrate is made of a crystallized glass having translucency and an average linear thermal expansion coefficient of ?5×10?7/° C. at 30 to 500° C. The substrate has a first surface (working surface) of a smooth surface having a surface roughness Rmax of less than 0.5 ?m, and a second surface (non-working surface) of a rough surface having a surface roughness Rmax of 4 ?m. A light shielding layer consisting of a light shielding film and an antioxidant film is formed on the second surface of the substrate through sputtering.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: May 18, 2010
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Narutoshi Shimatani, Toshimasa Kanai, Ukon Ishihara, Takeshi Nagata, Tsutomu Imamura
  • Cooking top plate
    Patent number: 7208703
    Abstract: A substrate is made of a crystallized glass having translucency and an average linear thermal expansion coefficient of ?5×10?7/° C. at 30 to 500° C. The substrate has a first surface (working surface) of a smooth surface having a surface roughness Rmax of less than 0.5 ?m, and a second surface (non-working surface) of a rough surface having a surface roughness Rmax of 4 ?m. A light shielding layer consisting of a light shielding film and an antioxidant film is formed on the second surface of the substrate through sputtering.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: April 24, 2007
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Narutoshi Shimatani, Toshimasa Kanai, Ukon Ishihara, Takeshi Nagata, Tsutomu Imamura
  • COOKING TOP PLATE
    Publication number: 20070056961
    Abstract: A substrate is made of a crystallized glass having translucency and an average linear thermal expansion coefficient of ?5×10?7/° C. at 30 to 500° C. The substrate has a first surface (working surface) of a smooth surface having a surface roughness Rmax of less than 0.5 ?m, and a second surface (non-working surface) of a rough surface having a surface roughness Rmax of 4 ?m. A light shielding layer consisting of a light shielding film and an antioxidant film is formed on the second surface of the substrate through sputtering.
    Type: Application
    Filed: November 3, 2006
    Publication date: March 15, 2007
    Inventors: NARUTOSHI SHIMATANI, Toshimasa Kanai, Ukon Ishihara, Takeshi Nagata, Tsutomu Imamura
  • Cooking top plate
    Publication number: 20050172829
    Abstract: A substrate is made of a crystallized glass having translucency and an average linear thermal expansion coefficient of ?5×10?7/° C. at 30 to 500° C. The substrate has a first surface (working surface) of a smooth surface having a surface roughness Rmax of less than 0.5 ?m, and a second surface (non-working surface) of a rough surface having a surface roughness Rmax of 4 ?m. A light shielding layer consisting of a light shielding film and an antioxidant film is formed on the second surface of the substrate through sputtering.
    Type: Application
    Filed: May 14, 2003
    Publication date: August 11, 2005
    Inventors: Narutoshi Shimatani, Toshimasa Kanai, Ukon Ishihara, Takeshi Nagata, Tsutomu Imamura
  • Glass article
    Publication number: 20050064205
    Abstract: A glass article which comprises a transparent heat-resistant glass sheet and a light-shielding layer on the surface thereof, wherein an average visible light transmittance at a wavelength of 380-780 nm of the glass article is 0.03-15%; and an average infrared reflectance at a wavelength of 1000-2500 nm of the glass article is at least 50%.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 24, 2005
    Applicant: Nippon Electric Glass Co., Ltd.
    Inventors: Masahiro Sawada, Toshimasa Kanai, Tsutomu Imamura, Ukon Ishihara