Patents by Inventor Tetsuo Yamaji

Tetsuo Yamaji 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).

  • Crankshaft flaw detection device
    Patent number: 9279787
    Abstract: A crankshaft flaw detection device (1) used for detecting flaws in the crank pin, web, and fillet section of a crankshaft comprises: a pair of shaft flaw detection heads (2, 3) configured so as to be capable of sandwiching the crank pin (C2) therebetween, and having a first probe (2b) capable of detecting flaws on the shaft surface of the crank pin (C2) or a second probe (3b) capable of detecting flaws in a fillet section at the base of the shaft; and a perpendicular surface flaw detection head (4) configured so as to be capable of coming in contact with the crank pin (C2) and having a third probe (4b) capable of detecting flaws in the side surface of the web (C3).
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: March 8, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Tetsuo Yamaji, Yasuhiro Wasa, Akira Okamoto, Norio Suzuki, Hideyuki Chikuri
  • CRANKSHAFT FLAW DETECTION DEVICE
    Publication number: 20150300994
    Abstract: A crankshaft flaw detection device (1) used for detecting flaws in the crank pin, web, and fillet section of a crankshaft comprises: a pair of shaft flaw detection heads (2, 3) configured so as to be capable of sandwiching the crank pin (C2) therebetween, and having a first probe (2b) capable of detecting flaws on the shaft surface of the crank pin (C2) or a second probe (3b) capable of detecting flaws in a fillet section at the base of the shaft; and a perpendicular surface flaw detection head (4) configured so as to be capable of coming in contact with the crank pin (C2) and having a third probe (4b) capable of detecting flaws in the side surface of the web (C3).
    Type: Application
    Filed: August 22, 2013
    Publication date: October 22, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Tetsuo YAMAJI, Yasuhiro WASA, Akira OKAMOTO, Norio SUZUKI, Hideyuki CHIKURI
  • Seamless copper alloy tube for heat exchanger being excellent in 0.2% proof stress and fatigue strength
    Patent number: 6280541
    Abstract: A seamless pipe made of copper alloy consisting of, by weight % , a total amount of 0.02 to 0.2% of Co, 0.01 to 0.05% of P, 1 to 20 ppm of C if needed, and remainder Cu, and unavoidable impurities and, as said impurities, the total oxygen content is regulated to 50 ppm or less, and useful for a heat transfer pipe of a heat exchanger and especially, when HFC-type fluorocarbon is used as a heating medium.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: August 28, 2001
    Assignee: Mitsubishi Materials Corporation
    Inventors: Yuichiro Sudo, Tetsuo Yamaji, Yutaka Saito