Patents by Inventor Narumitsu Suda

Narumitsu Suda 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).

  • Sanitary ware and process for producing same
    Patent number: 6383646
    Abstract: Sanitary ware which strongly resists adhesion of dirt and which may be easily cleaned with a weak flow of water, over a long period of time, comprises a first coloring glaze layer formed on the surface of a ceramic body, a second transparent glaze layer formed on the first glaze layer, and an engobe layer formed between said body surface and said first glaze layer.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: May 7, 2002
    Assignee: Toto Ltd.
    Inventors: Yutaka Tomioka, Satoshi Horiuchi, Shingo Kasahara, Katsuhiro Kawakami, Toru Ueno, Hiroyuki Takada, Yukinari Matsumoto, Narumitsu Suda, Shigeyuki Yamada