Patents by Inventor Norimasa Umesaki

Norimasa Umesaki 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: 6641937
    Abstract: The present invention is for a transparent conductive film of nitrogen-containing indium tin oxide 5 nm to 100 &mgr;m thick formed on a substrate. The process for producing the transparent film includes exciting the surface of the substrate in a vacuum and depositing vaporized indium tin oxide on the surface of the substrate. The surface may be excited with irradiation with an ion beam. The indium tin oxide may be deposited through vacuum deposition, laser abrasion, ion plating, ion beam deposition, or chemical vapor deposition. Vapor deposition of indium tin oxide may be performed using a sintered product of indium oxide and tin oxide or with indium metal and tin metal.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: November 4, 2003
    Assignee: Agency of Industrial Science and Technology
    Inventors: Masato Kiuchi, Kensuke Murai, Shigeharu Tamura, Norimasa Umesaki, Jiro Matsuo, Isao Yamada
  • Patent number: 4976806
    Abstract: A bonding composition comprising a metal oxide melt comprising (a) CaO, (b) SiO.sub.2 and/or Al.sub.2 O.sub.3, and (c) a metal oxide selected from TiO.sub.2, ZrO.sub.2, Cr.sub.2 O.sub.3, HfO.sub.2, Nb.sub.2 O.sub.3 and Ta.sub.2 O.sub.5 is melt-bonded on the surface of a ceramic material, and the ceramic material is bonded to an adherent, if necessary through at least one layer selected from a plating layer, a solder layer, and a buffer layer. In this manner, a strong bonding can be very easily obtained.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: December 11, 1990
    Assignee: Sumitomo Cement Co., Ltd.
    Inventors: Nobuya Iwamoto, Norimasa Umesaki, Hiroaki Hidaka, Yukio Haibara
  • Patent number: 4952454
    Abstract: A bonding composition comprising a metal oxide melt comprising (a) CaO, (b) SiO.sub.2 and/or Al.sub.2 O.sub.3, and (c) a metal oxide selected from TiO.sub.2, ZrO.sub.2, Cr.sub.2 O.sub.3, HfO.sub.2, Nb.sub.2 O.sub.3 and Ta.sub.2 O.sub.5 is melt-bonded on the surface of a ceramic material, and the ceramic material is bonded to an adherend, if necessary through at least one layer selected from a plating layer, a solder layer, and a buffer layer. In this manner, a strong bonding can be very easily obtained.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: August 28, 1990
    Assignee: Sumitomo Cement Co., Ltd.
    Inventors: Nobuya Iwamoto, Norimasa Umesaki