Patents Assigned to New Cosmos Electric Company Limited
  • Gas leakage detector
    Patent number: 4369647
    Abstract: A gas leakage detector comprising a solid state gas sensor having a sintered metallic oxide block which changes thermal conductivity by chemical adsorption thereto and a wire for transforming thermal conductivity charges into an electric signal. A suction pump draws gas through a gas intake path to the gas sensor. A voltage-frequency converter generates a pulse frequency that is a function of the gas sensor voltage. An alarm indicator including sound and/or light is controlled to pulse by the output pulse of the voltage frequency converter.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: January 25, 1983
    Assignee: New Cosmos Electric Company Limited
    Inventors: Tesshi Shigemori, Yoshinao Nozawa, Teruhisa Kojima, Satoshi Kitajima
  • Spark-plug for automobile internal combustion engine
    Patent number: 4109633
    Abstract: Improved spark-plugs for automobile internal combustion engines are made in a manner that thermal conductance (G) from flame nucleus to the electrodes is made as small as possible through decreasing of fluid resistance with respect to minute flame nucleus gas flow in the discharge, the fluid resistance being made small by making the discharge electrodes thin or making at least one of its discharge electrodes streamlined. The spark-plugs are capable of igniting and burning such lean gas mixture of 1.25 or more in excess air ratio (F).
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: August 29, 1978
    Assignee: New Cosmos Electric Company Limited
    Inventors: Hiroyuki Mitsudo, Masazumi Yoshida