Patents Examined by Michael Switzer
  • Temperature-controlled electronic circuit
    Patent number: 5268558
    Abstract: A temperature-controlled electronic circuit comprises a substrate, components of the circuit on its first side and a heating array on its second side. It finds a particular application in space telecommunications.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: December 7, 1993
    Assignee: France Telecom
    Inventors: Abdul Youssef, Jean-Bernard Ducrocq, Alain Meyer
  • Resistor, process for producing the same, and thermal head using the same
    Patent number: 5189284
    Abstract: A resistor comprises iridium and at least one metal selected from the group consisting of silicon, bismuth, lead, tin, aluminum, boron, titanium, zirconium, calcium and barium. A process for producing the resistor comprises the steps of coating a solution of an iridium containing organometallic material onto a substrate and subsequently firing the coated solution. The resistor is used as a heating resistor of a thermal head.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: February 23, 1993
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kumiko Takahashi, Kazuo Baba, Yoshiyuki Shiratsuki