Patents by Inventor Masaaki Koishi

Masaaki Koishi 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).

  • Evaporation source, apparatus and method for the preparation of organic El device
    Patent number: 6296894
    Abstract: An evaporation source includes an insulating container adapted to receive a volume of source material therein and a heater closely disposed around the container for heating and evaporating the source material into a vapor. The effective contact area of the container in contact with the source material is correlated to the volume of source material. The evaporation source is useful in the preparation of organic EL devices.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 2, 2001
    Assignee: TDK Corporation
    Inventors: Hiroshi Tanabe, Satoshi Tokura, Kengo Fukuyu, Akihiro Horita, Masaaki Koishi, Toru Sasaki
  • APPARATUS AND METHOD FOR PREPARING ORGANIC EL DEVICE
    Publication number: 20010008121
    Abstract: An apparatus for preparing an organic EL device includes a substrate (1) and an evaporation source (2) in an evaporation chamber. The evaporation source (2) has a container (2) made of an insulator with a thermal conductivity of at least 50 W/m·k and receiving a source material therein and a surrounding resistance heater (3). When the source material is heated and evaporated from the source onto the substrate, a detector (5) detects the rate of evaporation of the source material on the substrate and delivers a detection signal to a control unit (6), which controls the heater (3) in accordance with the signal.
    Type: Application
    Filed: June 17, 1999
    Publication date: July 19, 2001
    Inventors: HIROSHI TANABE, SATOSHI TOKURA, KENGO FUKUYU, AKIHIRO HORITA, MASAAKI KOISHI, TORU SASAKI