Patents by Inventor Chikara Uema

Chikara Uema 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).

  • Ito sintered body and method of manufacturing the same
    Patent number: 5401701
    Abstract: An ITO sintered body according to the present invention has a density thereof of between 90 and 100% and a sintering particle size of between 1 and 20 .mu.m. A proportion of (In.sub.0.6 Sn.sub.0.4).sub.2 O.sub.3 in the ITO sintered body is 10% or below. Such an ITO sintered body is manufactured by mixing an indium oxide powder, whose BET surface area is between 15 and 30 m.sup.2 /g, a BET size/a crystallite size is 2 or below, and an average primary particle size is between 0.03 and 0.1 .mu.m, with tin oxide whose BET surface area is 3 m.sup.2 /g or below, and then by sintering the mixture.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: March 28, 1995
    Assignee: Tosoh Corporation
    Inventors: Nobuhiro Ogawa, Kimitaka Kuma, Chikara Uema, Kazuaki Yamamoto, Ryoji Yoshimura, Takashi Mouri