Patents by Inventor Katsuyoshi Nagao

Katsuyoshi Nagao 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).

  • Drug solution filling plastic ampoule and process for producing the same
    Patent number: 8377029
    Abstract: A drug solution filling plastic ampoule having gas, steam and light ray barrier properties, a drug permeation preventing capability and an absorption/adsorption preventing capability, and a production method for the plastic ampoule. The drug solution filling plastic ampoule includes a container body, a fusion-bonded portion which seals a mouth of the container body, and a wrench-off holder tab connected to the fusion-bonded portion. The ampoule is formed from a parison including two or more layers, at least one of which is a functional layer having at least one characteristic property selected from the group consisting of a gas permeation preventing capability, a steam permeation preventing capability, a light ray permeation preventing capability, a drug permeation preventing capability and a drug absorption/adsorption preventing capability.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: February 19, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsuyoshi Nagao, Hideshi Okamoto, Masamitsu Izumi, Keiichi Kawakami, Fujio Inoue
  • Multiple-chamber medical container and bag for enclosing same
    Patent number: 8343128
    Abstract: A multiple-chamber medical container 1 comprises a container body 5 having two chambers 9, 11 for containing medicaments therein and a partitioning weak seal portion 13 for separating the chambers 9, 11 from each other, a medicinal outlet portion 7 attached to the container body 5 for discharging the medicaments from the chambers therethrough, and an openable small container 15 disposed in the first chamber 9 and having a medicament enclosed therein, the partitioning seal portion 15 being openable so as to cause the chambers 9, 11 to communicate with each other for use. The small container 15 can be opened by opening the partitioning weak seal portion 13.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 1, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsuyoshi Nagao, Toshiharu Yokoyama, Keiichi Kawakami
  • Drug solution filling plastic ampoule and process for producing the same
    Publication number: 20060229583
    Abstract: The present invention provides a drug solution filling plastic ampoule having gas, steam and light ray barrier properties, a drug permeation preventing capability and an absorption/adsorption preventing capability, and a production method for the plastic ampoule. The drug solution filling plastic ampoule (10) according to the present invention includes a container body (11), a fusion-bonded portion (13) which seals a mouth (12) of the container body, and a wrench-off holder tab (14) connected to the fusion-bonded portion. The ampoule (10) is formed from a parison including two or more layers, at least one of which is a functional layer having at least one characteristic property selected from the group consisting of a gas permeation preventing capability, a steam permeation preventing capability, a light ray permeation preventing capability, a drug permeation preventing capability and a drug absorption/adsorption preventing capability.
    Type: Application
    Filed: April 19, 2004
    Publication date: October 12, 2006
    Inventors: Katsuyoshi Nagao, Hideshi Okamoto, Masamitsu Izumi, Fujio Inoue
  • Multiple-chamber medical container and bag for enclosing same
    Publication number: 20050177128
    Abstract: A multiple-chamber medical container 1 comprises a container body 5 having two chambers 9, 11 for containing medicaments therein and a partitioning weak seal portion 13 for separating the chambers 9, 11 from each other, a medicinal outlet portion 7 attached to the container body 5 for discharging the medicaments from the chambers therethrough, and an openable small container 15 disposed in the first chamber 9 and having a medicament enclosed therein, the partitioning seal portion 15 being openable so as to cause the chambers 9, 11 to communicate with each other for use. The small container 15 can be opened by opening the partitioning weak seal portion 13.
    Type: Application
    Filed: April 25, 2003
    Publication date: August 11, 2005
    Inventors: Katsuyoshi Nagao, Toshiharu Yokoyama, Keiichi Kawakami