Patents by Inventor Tetsuo Hamamoto

Tetsuo Hamamoto 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).

  • Method of producing metal closed-section member
    Patent number: 8365411
    Abstract: The present invention provides a method capable of accurately producing a metal closed-section member in a relatively simple manner.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: February 5, 2013
    Assignee: Mazda Motor Corporation
    Inventors: Naoko Saito, Kyosou Ishida, Tetsuo Hamamoto
  • METHOD OF PRODUCING METAL CLOSED-SECTION MEMBER
    Publication number: 20100218375
    Abstract: The present invention provides a method capable of accurately producing a metal closed-section member in a relatively simple manner.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 2, 2010
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Naoko SAITO, Kyosou ISHIDA, Tetsuo HAMAMOTO
  • Process for purifying gases
    Patent number: 4062931
    Abstract: In purifying a gas containing at least one of hydrogen cyanide and hydrogen sulfide as a harmful component by fixing the harmful component in water as an aqueous solution of nitrogen-containing sulfur compound so as to render the gas free of the harmful component, an improvement characterized by:1. burning the aqueous solution of nitrogen-containing sulfur compound to obtain an exhaust gas containing sulfur dioxide,2. separating the sulfur dioxide from the exhaust gas for recovery, and3. exhausting the gas after the separation of the sulfur dioxide.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: December 13, 1977
    Inventors: Yoshio Nogami, Isami Ooka, Tetsuo Hamamoto, Hirofumi Shibano, Kenji Miyao, deceased, by Mieko Miyao, legal heir