Patents Assigned to Material Engineering Technology Laboratory, Incorporated
  • Patent number: 5871477
    Abstract: A medical container with an electrolyte solution stored therein is disclosed. It is formed of a resinmade container main body, a base solution compartment, at least one isolated compartment or connected compartment, and an openable portion. The base solution compartment is arranged in the container main body and is filled with the electrolyte solution in a state steamsterilized together with the container main body. The isolated compartment or connected compartment is arranged in the container main body, is isolated from the base solution compartment by an isolation wall interposed therebetween, and is filled with a bicarbonate. The openable portion permits aseptic communication between the base solution compartment and the isolated compartment or connected compartment by an operation from an outside of the container main body at the time of use. The openable portion is formed at at least a part of the isolation wall.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: February 16, 1999
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Keinosuke Isono, Hiroyuki Shichi, Hiroshi Motobayashi
  • Patent number: 5380315
    Abstract: An apparatus is provided for separately storing and selectively mixing a first component, which is in a liquid form, and a second component. The apparatus is formed of a first container made of a flexible material, having a communication mouth with an isolator and adapted to store the first component therein, a supporting case connected to the communication mouth, a second container having a mouth portion held in the case and a plug fitted in the mouth portion and adapted to store the second component, and a hollow, inflexible communication device capable of penetrating through the isolator and the plug. The communication device is accommodated in the first container and is attached to the communication mouth movably therein.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: January 10, 1995
    Assignee: Material Engineering Technology Laboratory Incorporated
    Inventors: Keinosuke Isono, Tatsuo Suzuki
  • Patent number: 5023026
    Abstract: Surface of synthetic resin object is hydrophilicated by irradiation of ultraviolet rays.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: June 11, 1991
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Takao Yoshida, Keinosuke Isono, Tatsuo Suzuki
  • Patent number: 4998400
    Abstract: Disclosed is a medical fluid-filled plastic container which includes (a) a sealed inner envelope of plastic material filled with a medical fluid containing a component subject to deterioration by oxygen, (b) a deoxidizer, and (c) a sealed outer envelope of plastic material enclosing both the medical fluid-filled inner envelope and the deoxidizer, as well as several methods of making such a medical fluid-filled plastic container. This medical fluid-filled plastic container will prevent the medical fluid therein from being deteriorated even if it is subjected to steam sterilization or is stored for a long period of time.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: March 12, 1991
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Tatsuo Suzuki, Keinosuke Isono
  • Patent number: 4961495
    Abstract: Disclosed herein is a container in which a mixture of resins having different melting starting temperatures is used as a heat-sealable layer. The heat-sealable layer is heat-sealed at two or more locations under different conditions so that at least one hermetic heat seal and at least one heat seal having easy-to-peel openability are formed to define plural compartments isolated from one another. The compartments can be filled with different materials. These materials are isolated from one another until immediately before use. Upon application, the heat seal having easy-to-peel openability is broken from the outside to permit mixing of the materials. The container is useful for foods, medical and pharmaceutical substances, and the like.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: October 9, 1990
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Takao Yoshida, Tatsuo Suzuki
  • Patent number: 4933123
    Abstract: A surface treatment method for improving the adhesiveness of a surface of a molded article made of a polyolefin resin with a printing ink, which entails irradiating the surface with an abundance of high-energy ultraviolet radiation from a high-output low-pressure mercury vapor lamp having an envelope made of synthetic quartz glass, and wherein the lamp has a wattage per unit lamp length of about 0.1-0.5 W/mm.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: June 12, 1990
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Takao Yoshida, Keinosuke Isono
  • Patent number: 4872553
    Abstract: Disclosed is a medical fluid-filled plastic container which includes (a) a sealed inner envelope of plastic material filled with a medical fluid containing a component subject to deterioration by oxygen, (b) a deoxidizer, and (c) a sealed outer envelope of plastic material enclosing both the medical fluid-filled inner envelope and the deoxidizer, as well as several methods of making such a medical fluid-filled plastic container. This medical fluid-filled plastic container will prevent the medical fluid therein from being deteriorated even it it is subjected to steam sterilization or is stored for a long period of time.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: October 10, 1989
    Assignee: Material Engineering Technology Laboratory, Incorporated
    Inventors: Tatsuo Suzuki, Keinosuke Isono