Patents by Inventor Osamaru Eguchi

Osamaru Eguchi 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).

  • Method for manufacturing a target for an image pickup tube
    Patent number: 3985918
    Abstract: A target for an image pickup tube having high sensitivity, low dark current and low amount of lag-image is manufactured by forming a hetero-junction by the evaporation process. A first layer of ZnS.sub.x Se.sub.1.sub.-x or Zn.sub.u Cd.sub.1.sub.-u S (wherein 0 .ltoreq. x .ltoreq. 1 and 0 .ltoreq. u .ltoreq. 1) is deposited on a light transmitting substrate having a coefficient of linear expansion of 56 .times. 10.sup..sup.-7 /.degree.C - 110 .times. 10.sup..sup.-7 /.degree.C and a second layer of (Zn.sub.y Cd.sub.1.sub.-y Te).sub.z (In.sub.2 Te.sub.3).sub.1.sub.-z (wherein 0.1 .ltoreq. y .ltoreq. 0.9 and 0.7 .ltoreq. z .ltoreq. 1) is deposited on the first layer. The substrate is then heat treated in an inert gas atmosphere or under vacuum at a temperature of 350.degree.-650.degree.C, preferably 500.degree.-600.degree.C for a time period of 5-90 minutes, preferably 5-15 minutes.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: October 12, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakazu Fukai, Shinji Fujiwara, Hiroyuki Serizawa, Osamaru Eguchi, Yukimasa Kuramoto