Patents by Inventor Hideaki Oana

Hideaki Oana 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).

  • Absorption refrigerating machines group apparatus
    Patent number: 5737933
    Abstract: An absorption refrigerating machines-group apparatus that can be installed at reduced cost and prevent the occurrence of abnormal situations due to the unexpected suspension of the operation of a cooling water pump is provided. The absorption refrigerating machines-group apparatus according to the invention comprises a control panel 200 for issuing control signals, an adapter 300 having a control section 310 for relaying control signals and absorption refrigerating machines 100A, 100B, 100C having respective control sections 80, said control sections 310 and 80 being connected by a telecommunications line L51. When a signal for suspending the operation of the shared cooling water pump is relayed, the currently operating absorption refrigerating machines are brought into a temporary state that allows the operation of the cooling water pump P2 to be suspended through an exchange of signals between the control sections 310 and 80.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: April 14, 1998
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Nobuhiro Idei, Yasuo Sakata, Hideaki Oana, Yuichi Suzuki