Patents by Inventor Masakazu Mameta

Masakazu Mameta 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).

  • Patent number: 8727651
    Abstract: An elevating container includes an elliptically shaped main tube, a non-circularly shaped moveable support unit which moves upwardly or downwardly along an inner surface of a storage tube of the main tube without rotating, and a driving unit fitted to the main tube to rotate in threaded engagement to the support unit without moving upwardly or downwardly. A seal section at the lower end of the inner peripheral surface of the storage tube and a sealing cylinder at the lower end of the support unit are air-tightly fitted to each other. In addition, positioning ribs are provided at the lower end of the storage tube, and positioning notches are provided at the lower end of the moveable support unit. When the positioning ribs and the positioning notches are engaged with each other, a circumferential misalignment between the main tube and the support unit is corrected.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: May 20, 2014
    Assignees: Rohto Pharmaceutical Co., Ltd., Yoshino Kogyosho Co., Ltd
    Inventors: Ken Arai, Takamitsu Okawara, Masakazu Mameta, Tsutomu Kobayashi, Hideo Uemura
  • Publication number: 20110033220
    Abstract: An advancing container constructed from an elliptically tubular body tube (1), a tubular tray body (21) having a non-circular shaped lateral cross-section and non-rotatably moves up and down in a containing tube section (2) in the body tube (1), and a driving body (11) mounted to the body tube (1) so as to be able to rotate and not to be able to move up and down and screw-fitted to the tray body (21). A seal section (3) at the lower end of the inner peripheral surface of the containing tube section (2) and a seal tube section (24) at the lower end of the tray body (21) are adapted to be able to be tightly fitted to each other. A positioning rib (4) is provided at the lower end of the containing tube section (2), and a positioning cutout (25) is provided at the lower end of the tray body (21). When the positioning rib (4) and the positioning cutout (25) are engaged with each other, circumferential displacements of the body tube (1) and the tray body (21) are corrected.
    Type: Application
    Filed: February 3, 2009
    Publication date: February 10, 2011
    Applicants: ROHTO PHARMACEUTICAL CO., LTD., YOSHINO KOGYOSHO CO., LTD.
    Inventors: Ken Arai, Takamitsu Okawara, Masakazu Mameta, Tsutomu Kobayashi, Hideo Uemura
  • Patent number: 6475206
    Abstract: There is provided a liquid container capable of transferring liquids germ free in a simple manner within a short period of time and with inconsiderable solution remaining after transfer. The liquid container includes a vessel main body 1, a mouth portion 11 of which is closed by an easily breakable closing member 12, and a hollow needle member 2 crowned pivotably on the mouth portion 11 of the container main body 1. The closing member 12 is provided with a flat knob portion 121. A knob-containing portion 22 of the hollow needle member 2 is provided with a protrusion 24 for joining the knob portion 121 when the hollow needle member 2 is pivoted.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: November 5, 2002
    Assignee: Nipro Corporation
    Inventors: Yoshihisa Hama, Masakazu Mameta, Takamitsu Okawara
  • Patent number: 6326010
    Abstract: To provide a plastic vessel containing an albumin preparation which completely restrains formation of thermally denatured albumin, a plastic molded member in a cylindrical shape is extruded in a molten state into opened dies, one end of which is closed in the dies, and a vessel is molded by blowing a compressed gas into the molded member in the dies or by bringing inner portions of the dies into a vacuum state. While the vessel is still disposed in the dies, an albumin preparation is introduced from an opening portion into an inner portion of the vessel and, therefore, the albumin preparation can be filled into the vessel in a sterilized state without being brought into contact with the atmosphere. Then, an opening portion of the vessel filled with the albumin preparation is hermetically sealed at an internal temperature of the opening portion of about 40 to 70° C. Thus formation of thermally denatured albumin can be completely restrained.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: December 4, 2001
    Assignee: Nipro Corporation
    Inventors: Minoru Sano, Yoshihisa Hama, Toshiya Kai, Masakazu Mameta
  • Patent number: 6197936
    Abstract: To provide a plastic vessel containing an albumin preparation which completely restrains formation of thermally denatured albumin, a plastic molded member in a cylindrical shape is extruded in a molten state into opened dies, one end of which is closed in the dies, and a vessel is molded by blowing a compressed gas into the molded member in the dies or by bringing inner portions of the dies into a vacuum state. While the vessel is still disposed in the dies, an albumin preparation is introduced from an opening portion into an inner portion of the vessel and, therefore, the albumin preparation can be filled into the vessel in a sterilized state without being brought into contact with the atmosphere. Then, an opening portion of the vessel filled with the albumin preparation is hermetically sealed at an internal temperature of the opening portion of about 40° to 70° C. Thus formation of thermally denatured albumin can be completely restrained.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: March 6, 2001
    Assignee: Nissho Corporation
    Inventors: Minoru Sano, Yoshihisa Hama, Toshiya Kai, Masakazu Mameta
  • Patent number: D548585
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: August 14, 2007
    Assignee: Kobayashi Pharmaceutical Co., Ltd.
    Inventors: Kyosuke Okabe, Tomohiro Saito, Masakazu Mameta