Patents by Inventor Munekazu Maeda

Munekazu Maeda 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).

  • Thermoelectric cooling system
    Patent number: 6293107
    Abstract: Air traps 37a, 37b are disposed on one side adjacent at least one of suction and discharge ports of circulating pumps 14a, 14b forming a heat radiating or heat absorbing cycle. Also, the circulating pumps 14a, 14b are disposed at a level higher than heat-radiating and cooling heat exchangers 10, 20 and first and second heat exchanging portions 26a, 26b to recover air bubbles mixed therein so that the air bubbles circulated can be reduced to improve the heat efficiency.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: September 25, 2001
    Assignee: Matsushita Refrigeration Company
    Inventors: Hiroaki Kitagawa, Munekazu Maeda, Osamu Nakagawa, Shigetomi Tokunaga