Patents by Inventor Masashi Seino

Masashi Seino 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).

  • Press die for metal plate molding, the processing method of the surface of the press die, and manufacturing method of a vehicle body
    Patent number: 9126255
    Abstract: A press die and a processing method of the press die surface, and a manufacturing method of a vehicle body of an automobile, are capable of maintaining a high non-defective product rate of works after press processing, even in a case in which foreign matter such as iron filings and the like have adhered to a die surface. A press die for sheet metal forming has a multitude of concave portions on a die surface, and has a roughness (Ry) of a die surface on which the multitude of concave portions has been formed of 30 to 38 ?m.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: September 8, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takayuki Yagi, Akihiro Matsuyama, Shinichi Koyama, Masato Fukushima, Kinji Takahashi, Kazumichi Tosa, Masashi Seino, Takeshi Terada, Yuu Yamakawa, Motoo Takano
  • PRESS DIE FOR METAL PLATE MOLDING, THE PROCESSING METHOD OF THE SURFACE OF THE PRESS DIE, AND MANUFACTURING METHOD OF A VEHICLE BODY
    Publication number: 20100206037
    Abstract: A press die and a processing method of the press die surface, and a manufacturing method of a vehicle body of an automobile, are capable of maintaining a high non-defective product rate of works after press processing, even in a case in which foreign matter such as iron filings and the like have adhered to a die surface. A press die for sheet metal forming has a multitude of concave portions on a die surface, and has a roughness (Ry) of a die surface on which the multitude of concave portions has been formed of 30 to 38 ?m.
    Type: Application
    Filed: July 31, 2008
    Publication date: August 19, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takayuki Yagi, Akihiro Matsuyama, Shinichi Koyama, Masato Fukushima, Kinji Takahashi, Kazumichi Tosa, Masashi Seino, Takeshi Terada, Yuu Yamakawa, Motoo Takano