Patents by Inventor Ko Toya

Ko Toya 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).

  • Patent number: 4727729
    Abstract: An ice making compartment in an ice maker comprises a vertical ice making plate where cooling pipes are fixed to the rear surface of the ice making plate, and a plurality of longitudinal and transversal partition plates fixed to the front surface of the ice making plate and defining the cells in cooperation with the ice making plate. Both partition plates comprise plates having different heights from the front surface of the ice making plate so as to separate certainly the adjoining ice cubes during the defrosting cycle. It is desirable that at least one of the transversal partition plates end tip is sharper than the others thereof.
    Type: Grant
    Filed: January 5, 1983
    Date of Patent: March 1, 1988
    Assignee: Hoshizaki Electric Co., Ltd.
    Inventor: Ko Toya
  • Patent number: 3977851
    Abstract: An automatic electronic ice-making control system for automatic ice-making machines including an ice-making chamber in which is arranged a semiconductor temperature sensitive element which may comprise a thermistor, which translates temperature changes into resistance changes and for terminating an ice-making cycle a differential amplifier is provided in which said thermistor is connected as a temperature sensitive element, a variable resistance element sensitive to ambient changes being provided in said differential amplifier in series connection with said thermistor across a voltage source, the variable resistance element compensating the characteristics of the thermistor in accordance with atmospheric ambient temperature changes to actuate with an output signal derived from the differential amplifier a Schmidt circuit and relays in accordance with temperature conditions prevailing in the ice-making chamber and compensated for ambient temperature changes, thereby to terminate the ice-making operation upon p
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: August 31, 1976
    Assignee: Hoshizaki Electric Co., Ltd.
    Inventor: Ko Toya