Patents by Inventor Shunji Ishiwata

Shunji Ishiwata 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: 20200254123
    Abstract: A treatment method is capable of degrading or sterilizing harmful substances or microorganisms of which the degradation, detoxification, or the like is not easy for ozone gas alone. A harmful substance treatment method is one that makes ozone gas act on harmful substances, microorganisms, or the like in an environment humidified using a surfactant solution. The harmful substances include anticancer drugs. As a surfactant to be used, a non-ionic surfactant, an anionic surfactant, a cationic surfactant, or an amphoteric surfactant can be used.
    Type: Application
    Filed: October 10, 2018
    Publication date: August 13, 2020
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo TAMURA, Shunji ISHIWATA, Tomomi INOUE, Takeshi KOTAKE
  • Patent number: 10675495
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 9, 2020
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Publication number: 20180200554
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo TAMURA, Yoshiyuki FUKUDA, Shunji ISHIWATA, Atsushi TAGA
  • Patent number: 10004932
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 26, 2018
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Patent number: 9808401
    Abstract: Provided is an exposure-preventing cap of a novel and simple structure that, by being mounted on a vial, can more reliably inhibit leaking of drug solution to an outside when pulling out and collecting drug solution in a syringe from the vial. An exposure-preventing cap, which is mounted on a mouth of a vial sealed with a rubber stopper, wherein a puncturing hole is formed in a center part of a cap-shaped housing that is attached to a mouth of the vial, and a rubber membrane is arranged at the puncturing hole so as to form an internal space between facing surfaces of the rubber membrane and the rubber stopper. The rubber membrane has a dome shape that is convex facing the rubber stopper.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: November 7, 2017
    Assignees: KINKI UNIVERSITY, GTO, LTD., NIPRO CORPORATION
    Inventors: Shunji Ishiwata, Atsushi Taga, Shozo Nishida, Ayako Kita, Reiko Sugiura, Hideki Fujita, Mitsuru Hasegawa
  • Publication number: 20160121152
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Application
    Filed: June 18, 2014
    Publication date: May 5, 2016
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Publication number: 20150112296
    Abstract: Provided is an exposure-preventing cap of a novel and simple structure that, by being mounted on a vial, can more reliably inhibit leaking of drug solution to an outside when pulling out and collecting drug solution in a syringe from the vial. An exposure-preventing cap, which is mounted on a mouth of a vial sealed with a rubber stopper, wherein a puncturing hole is formed in a center part of a cap-shaped housing that is attached to a mouth of the vial, and a rubber membrane is arranged at the puncturing hole so as to form an internal space between facing surfaces of the rubber membrane and the rubber stopper. The rubber membrane has a dome shape that is convex facing the rubber stopper.
    Type: Application
    Filed: May 15, 2013
    Publication date: April 23, 2015
    Inventors: Shunji Ishiwata, Atsushi Taga, Shozo Nishida, Ayako Kita, Reiko Sugiura, Hideki Fujita, Mitsuru Hasegawa
  • Patent number: 8888756
    Abstract: A plug for a container capable of improving air-tightness and liquid-tightness is provided. A plug includes a first split piece having a cylindrical first fitting portion to be mounted on an opening portion of a container body and fitted to an opening portion space of the opening portion, an end wall which blocks one end of the first fitting portion, and a first flange portion extending outwardly in a radial direction of the first fitting portion from the other end thereof; and a second split piece having a second fitting portion which is fitted to the first fitting portion of the first split piece and forms a closed space between the end wall and the second fitting portion and a second flange portion extending outwardly in a radial direction of the second fitting portion therefrom.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 18, 2014
    Assignee: GTO Ltd.
    Inventors: Shunji Ishiwata, Atsushi Taga, Hideki Fujita, Shozo Nishida, Ayako Kita, Reiko Sugiura
  • Publication number: 20130085466
    Abstract: A plug for a container capable of improving air-tightness and liquid-tightness is provided. A plug includes a first split piece having a cylindrical first fitting portion to be mounted on an opening portion of a container body and fitted to an opening portion space of the opening portion, an end wall which blocks one end of the first fitting portion, and a first flange portion extending outwardly in a radial direction of the first fitting portion from the other end thereof; and a second split piece having a second fitting portion which is fitted to the first fitting portion of the first split piece and forms a closed space between the end wall and the second fitting portion and a second flange portion extending outwardly in a radial direction of the second fitting portion therefrom.
    Type: Application
    Filed: March 26, 2010
    Publication date: April 4, 2013
    Applicants: Shinagawa Co., Ltd, Kinki University
    Inventors: Shunji Ishiwata, Atsushi Taga, Hideki Fujita, Shozo Nishida, Ayako Kita, Reiko Sugiura