Patents by Inventor Takashi Kuwanote

Takashi Kuwanote 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).

  • Fusion-bonded product having high-strength part and manufacturing method thereof
    Patent number: 8202628
    Abstract: The present invention is a fusion-bonded product having a high-strength part, comprising: a first preform (2a) constituted by integrally, frictionally pressure-welding a first low-carbon steel part (L1) made of low-carbon steel containing less than 0.45% of C and a high-carbon steel part (H) made of high-carbon steel containing not less than 0.45% of C; and a second preform (2b) having a second low-carbon steel part (L2) made of second low-carbon steel containing less than 0.45% of C; wherein the high-carbon steel part (H) of the first preform (2a) is provided with a high-strength part (9) that has been previously formed into a desired shape and quenched, the second low-carbon steel part (L2) of the second preform (2b) has been previously formed into a predetermined shape, and the first low-carbon steel part (L1) of the first preform (2a) and the second low-carbon steel part (L2) of the second preform (2b) are bonded to each other by fusion welding.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: June 19, 2012
    Assignee: Musashi Seimitsu Kogyo Kabushiki Kaisha
    Inventors: Akira Mataga, Takashi Kuwanote
  • FUSION-BONDED PRODUCT HAVING HIGH-STRENGTH PART AND MANUFACTURING METHOD THEREOF
    Publication number: 20080138649
    Abstract: The present invention is a fusion-bonded product having a high-strength part, comprising: a first preform (2a) constituted by integrally, frictionally pressure-welding a first low-carbon steel part (L1) made of low-carbon steel containing less than 0.45% of C and a high-carbon steel part (H) made of high-carbon steel containing not less than 0.45% of C; and a second preform (2b) having a second low-carbon steel part (L2) made of second low-carbon steel containing less than 0.45% of C; wherein the high-carbon steel part (H) of the first preform (2a) is provided with a high-strength part (9) that has been previously formed into a desired shape and quenched, the second low-carbon steel part (L2) of the second preform (2b) has been previously formed into a predetermined shape, and the first low-carbon steel part (L1) of the first preform (2a) and the second low-carbon steel part (L2) of the second preform (2b) are bonded to each other by fusion welding.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 12, 2008
    Applicant: MUSASHI SEIMITSU KOGYO KABUSHIKI KAISHA
    Inventors: Akira MATAGA, Takashi Kuwanote