Patents by Inventor Katsumi Hazama

Katsumi Hazama 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).

  • Combustion apparatus and melting furnace for nonferrous metals
    Patent number: 6495092
    Abstract: A combustion apparatus comprises a pair or more than two pairs of burner groups. Each burner group comprises one regenerator per a plurality of burners. In each pair of burner groups, a first burner group and a second burner group are fired alternately and waste heat produced when the first burner group is fired is stored in a regenerator of the second burner group. The stored waste heat is utilized to preheat the combustion air of the second burner group when the second burner group is fired. Similarly, waste heat produced when the second burner group is fired is stored in a regenerator of the first burner group, and the stored waste heat is utilized to preheat the combustion air of the first burner group when the first burner group is fired.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: December 17, 2002
    Assignee: Sanken Sangyo Co., Ltd.
    Inventors: Katsumi Hazama, Keinosuke Masuki, Takayuki Inami, Miki Takai, Eiichi Kashima, Tetsuya Yamada