Patents by Inventor Masahumi Tomita

Masahumi Tomita 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).

  • Air conditioning apparatus
    Patent number: 7987679
    Abstract: By studying or storing refrigerating cycle characteristics of an air conditioning apparatus at the normal time and comparing them with refrigerating cycle characteristics acquired from the air conditioning apparatus at the time of operation, it becomes possible to exactly and accurately diagnose normality or abnormality of the air conditioning apparatus under any installation conditions and environmental conditions, which eliminates operations of inputting a difference between apparatus model names, a piping length, a height difference, etc at the time of apparatus installation. Accordingly, it aims at shortening the time of judging normality or abnormality, and improving the operability.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: August 2, 2011
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kousuke Tanaka, Kouji Yamashita, Yasunori Shida, Masahumi Tomita
  • Air Conditioning Apparatus
    Publication number: 20070204635
    Abstract: By studying or storing refrigerating cycle characteristics of an air conditioning apparatus at the normal time and comparing them with refrigerating cycle characteristics acquired from the air conditioning apparatus at the time of operation, it becomes possible to exactly and accurately diagnose normality or abnormality of the air conditioning apparatus under any installation conditions and environmental conditions, which eliminates operations of inputting a difference between apparatus model names, a piping length, a height difference, etc at the time of apparatus installation. Accordingly, it aims at shortening the time of judging normality or abnormality, and improving the operability.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 6, 2007
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kousuke Tanaka, Kouji Yamashita, Yasunori Shida, Masahumi Tomita