Patents by Inventor Masakazu Shigiishi

Masakazu Shigiishi 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).

  • Syringe Cylinder
    Publication number: 20090105660
    Abstract: A syringe cylinder 12 includes a groove 32 formed in an inner peripheral surface thereof and extending over a predetermined length from an opening end 30 thereof. Even with the intermediate sliding stopper 14 located at a position where the groove 32 is formed, the pressure inside the syringe cylinder 12 can be reduced. Thus, during vacuum tapping, the intermediate sliding stopper 14 can be held in the vicinity of the opening end 30 of the syringe cylinder 12. Consequently, the intermediate sliding stopper 14 can be inserted into the syringe cylinder 12 in a correct posture and reliably moved to a predetermined position in the syringe cylinder 12.
    Type: Application
    Filed: February 23, 2007
    Publication date: April 23, 2009
    Applicant: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Kazunori Muta, Shigeo Ota, Takaaki Yoshinaga, Masakazu Shigiishi, Junichi Kubo, Nobuo Tsutsumi
  • Medical patch
    Patent number: D512509
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: December 6, 2005
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shinji Yamasoto, Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D536621
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: February 13, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Nobuo Tsutsumi, Masakazu Shigiishi
  • Medical patch
    Patent number: D545441
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: June 26, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Takafumi Miyachika, Kenichi Yamashita, Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D545690
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: July 3, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D548616
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: August 14, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D551090
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: September 18, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D554530
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: November 6, 2007
    Assignee: Hisamitsu Pharmaceuticals Co., Inc.
    Inventors: Nobuo Tsutsumi, Masakazu Shigiishi
  • Package
    Patent number: D558062
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: December 25, 2007
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Naruhito Higo, Tetsuro Tateishi, Takeshi Ito, Nobuo Tsutsumi, Masakazu Shigiishi
  • Injector
    Patent number: D578210
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: October 7, 2008
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Kazunori Muta, Shigeo Ohta, Takaaki Yoshinaga, Masakazu Shigiishi, Junichi Kubo, Nobuo Tsutsumi
  • Packaging box
    Patent number: D603270
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: November 3, 2009
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D603271
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 3, 2009
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D618548
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: June 29, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D619015
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: July 6, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D621700
    Type: Grant
    Filed: May 24, 2008
    Date of Patent: August 17, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D621701
    Type: Grant
    Filed: May 24, 2008
    Date of Patent: August 17, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D628063
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: November 30, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D634623
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 22, 2011
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D634624
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 22, 2011
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi
  • Packaging box
    Patent number: D641621
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 19, 2011
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Shigeo Kusumi, Nobuo Tsutsumi, Masakazu Shigiishi