Patents by Inventor Shigenobu Nagamori

Shigenobu Nagamori 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).

  • Micropump with liquid-absorptive polymer gel actuator
    Patent number: 5336057
    Abstract: A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: August 9, 1994
    Assignee: Nippon Densan Corporation
    Inventors: Toshio Fukuda, Shinobu Hattori, Shigenobu Nagamori
  • Micropump
    Patent number: 5288214
    Abstract: A micropump comprises a housing for defining a pump chamber, an inlet valve disposed in an inlet flow passage, a outlet valve disposed in a outlet flow passage, and an actuator for changing a volume of the pump chamber. The actuator is formed of a thermo-responsive polymer gel material. Fluid is supplied and fed by heating and cooling the actuator.A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator, for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: February 22, 1994
    Assignees: Toshio Fukuda, Nippon Densan Corporation
    Inventors: Toshio Fukuda, Shinobu Hattori, Shigenobu Nagamori