Patents by Inventor Yasuyuki Shiraishi

Yasuyuki Shiraishi 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).

  • Publication number: 20060155161
    Abstract: A container has a diaphragm in abutment with an outer wall of a heart, and contains silicone oil. An actuator driven by a motor applies pressure on the silicone oil in the container to drive the diaphragm. A controller controls the operation of the motor.
    Type: Application
    Filed: December 20, 2005
    Publication date: July 13, 2006
    Inventors: Tomoyuki Yambe, Yasuyuki Shiraishi
  • Patent number: 6708850
    Abstract: The present invention provides a discharging container whose main part is a squeeze-bottle adapted for use as eyedroppers and transparent to such a degree as required. This container has to perfectly shut off ambient air and bacteria not to flowing into a liquid content of the container so as to keep it sterilized even after unsealed for use. The discharging container has a laminated bottle 2, and a stopper 3 attached to a finish 2a of the laminated bottle, the bottle being composed of an outer layer 21 and an inner layer 22 delaminating from the outer layer 21. A vent hole 4 is formed in the outer layer so as to introduce ambient air in between the outer and inner layers 21, 22. A discharging passage 10 is formed in the stopper 3 so as to exude through it a liquid content inside the inner layer 22, and the stopper further has a check valve 8 and a filter 7 disposed on the downstream side of the valve.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 23, 2004
    Assignees: Taisei Kako Co., Ltd., Nihon Tenganyaku Kenkyusyo Co., Ltd.
    Inventors: Yorihisa Uetake, Keiji Hamamoto, Yasuyuki Shiraishi
  • Patent number: 6672479
    Abstract: A closing member 3 is equipped with a dispensing valve 8 and a filter 7. The valve 8 is deformed resiliently to shift its valve head 82 downstream with its orifice 82a remaining closed if pressure less than a first predetermined pressure and more than a second predetermined pressure is acted on the inner surface of the valve head 82. The valve 8 returns to its original shape to shift the valve head 82 upstream with its orifice 82a remaining closed if the pressure is removed, thereby sucking fluid remaining within the passage 10 back to the upstream side of the filter 7. The closing member 3 has a supporter 31d that prevents the orifice 82a of the valve head 82 from opening when a negative pressure is generated in the bottle.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: January 6, 2004
    Assignees: Taisai Kako Co., Ltd./Nihon Tenganyaku, Kenkyusyo Co., Ltd.
    Inventors: Yasuyuki Shiraishi, Keiji Hamamoto, Hirokazu Mihashi
  • Publication number: 20030158537
    Abstract: The present invention provides an infusion vessel, which is capable of separately containing a drug and a infusion liquid in a sterile manner and mixing the drug with the infusion liquid in a sterile manner by a simple operation for use, while ensuring the sterility of a connector thereof. The infusion vessel according to the present invention comprises a bag (2) for containing a infusion liquid, a two-mouth vial (3) for containing a drug, and a joint (4) connecting the bag and the vial. A lower mouth portion (33) of the vial (3) is sealed with a rubber plug (7). The joint (4) is air-tightly connected to a liquid outlet port (21) provided in a bottom portion of the bag (2), and extends downward. The joint (4) has an opening (46) for communication between the inside and the outside thereof. An O-ring (6) and an intermediate rubber plug (5) are respectively attached to the joint (4) above and below the opening (46), and fitted in the upper mouth portion (32) of the vial (3) in an axially movable manner.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 21, 2003
    Applicant: Taisei Kako Co., Ltd.
    Inventors: Yasuyuki Shiraishi, Keiji Hamamoto, Seiji Yoshimura
  • Publication number: 20030105448
    Abstract: An infusion vessel has a vessel body having an internal cavity to serve as an infusion medium space, a cylindrical discharge mouth continuing from a lower portion of the vessel body, a medicine chamber disposed in the discharge mouth and kept airtight against ambient air, and a separator intervening between the infusion medium space and the medicine chamber so as to keep the space in a liquid-tight state against the holder. The separator is subject to displacement, rotation or deformation such as to bring the infusion medium space into communication with the medicine chamber, so that the infusion vessel can be made ready for use by conducting a simple operation to mix the medicine with the infusion medium that have been separated from each other within the vessel during its normal state before use.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 5, 2003
    Inventors: Yasuyuki Shiraishi, Keiji Hamamoto, Masaharu Nakao, Makoto Kuroki, Seiji Yoshimura
  • Publication number: 20020153386
    Abstract: The present invention provides a discharging container whose main part is a squeeze-bottle adapted for use as eyedroppers and transparent to such a degree as required. This container has to perfectly shut off ambient air and bacteria not to flowing into a liquid content of the container so as to keep it sterilized even after unsealed for use.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 24, 2002
    Inventors: Yorihisa Uetake, Keiji Hamamoto, Yasuyuki Shiraishi
  • Publication number: 20020130139
    Abstract: A closing member 3 is equipped with a dispensing valve 8 and a filter 7. The valve 8 is deformed resiliently to shift its valve head 82 downstream with its orifice 82a remaining closed if pressure less than a first predetermined pressure and more than a second predetermined pressure is acted on the inner surface of the valve head 82. The valve 8 returns to its original shape to shift the valve head 82 upstream with its orifice 82a remaining closed if the pressure is removed, thereby sucking fluid remaining within the passage 10 back to the upstream side of the filter 7. The closing member 3 has a supporter 31d that prevents the orifice 82a of the valve head 82 from opening when a negative pressure is generated in the bottle.
    Type: Application
    Filed: February 4, 2002
    Publication date: September 19, 2002
    Inventors: Yasuyuki Shiraishi, Keiji Hamamoto, Hirokazu Mihashi