Patents by Inventor Takeshi Tsunezumi

Takeshi Tsunezumi 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).

  • Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
    Patent number: 8661867
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: March 4, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
    Patent number: 7485884
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: February 3, 2009
    Assignee: Mitsubishi Heavy Industries Ltd.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • Radioactive substance containment vessel, and radioactive substance containment vessel producing device and producing method
    Patent number: 7462853
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: December 9, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • RADIOACTIVE SUBSTANCE CONTAINER, MANUFACTURING APPARATUS THEREOF AND MANUFACTURING METHOD THEREOF
    Publication number: 20080209972
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Application
    Filed: May 6, 2008
    Publication date: September 4, 2008
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Yoshihiko FUNAKOSHI, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • RADIOACTIVE SUBSTANCE CONTAINER, MANUFACTURING APPARATUS THEREOF AND MANUFACTURING METHOD THEREOF
    Publication number: 20070089474
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 26, 2007
    Applicants: Japan Casting & Forging Corporation, MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
    Patent number: 7176472
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: February 13, 2007
    Assignee: Mitsubishi Heavy Industries Ltd.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof
    Publication number: 20050087704
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Application
    Filed: December 14, 2004
    Publication date: April 28, 2005
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharo Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka
  • Radioactive substance containment vessel, and radioactive substance contaiment vessel producing device and producing method
    Publication number: 20040025560
    Abstract: In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
    Type: Application
    Filed: July 1, 2002
    Publication date: February 12, 2004
    Inventors: Yoshihiko Funakoshi, Takeshi Tsunezumi, Naohiro Mizuno, Katsuhiko Tokuno, Chikayuki Matsumoto, Yoshiharu Taura, Shigenori Shirogane, Katsunari Ohsono, Toshihiro Matsuoka