Patents by Inventor Kenjiro Kawatsu

Kenjiro Kawatsu 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).

  • Method of viral purification
    Patent number: 10392603
    Abstract: A method of producing a virus in cell culture comprising at least the steps of a) providing a population of cells cultured in a cell culture medium, b) infecting the population of cells by i. inoculating the population with the virus, and ii. incubating the inoculated population so as to allow the virus to replicate and propagate, c) collecting the produced virus, thereby providing a viral harvest, and d) purifying the virus, wherein a power density of at least 15 W/m3, at least 30 W/m3, at least 60 W/m3, at least 100 W/m3, at least 120 W/m3 is applied to the cell culture at least during step b).
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: August 27, 2019
    Assignee: The Chemo-Sero-Therapeutic Research Institute
    Inventors: Pascal Charles Louis Gerkens, Michele Therese Rita Lecocq, Tatsuya Kasugaya, Kenjiro Kawatsu, Yoshinobu Miyatsu, Tetsuro Tanabe
  • NOVEL METHOD
    Publication number: 20160208220
    Abstract: A method of producing a virus in cell culture comprising at least the steps of a) providing a population of cells cultured in a cell culture medium, b) infecting the population of cells by i. inoculating the population with the virus, and ii. incubating the inoculated population so as to allow the virus to replicate and propagate, c) collecting the produced virus, thereby providing a viral harvest, and d) purifying the virus, wherein a power density of at least 15 W/m3, at least 30 W/m3, at least 60 W/m3, at least 100 W/m3, at least 120 W/m3 is applied to the cell culture at least during step b).
    Type: Application
    Filed: August 28, 2014
    Publication date: July 21, 2016
    Inventors: Pascal Charles Louis GERKENS, Michele Therese Rita LECOCQ, Tatsuya KASUGAYA, Kenjiro KAWATSU, Yoshinobu MIYATSU, Tetsuro TANABE
  • Method for purifying modified major mite allergen
    Patent number: 7667009
    Abstract: A method for purifying a modified major mite allergen obtained by the genetic recombination technique and a purified modified major mite allergen obtained by said method for purification are provided.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: February 23, 2010
    Assignee: Juridical Foundation the Chemo-Sero-Therapeutic Research Institute
    Inventors: Satoshi Koyanagi, Kenjiro Kawatsu, Toshio Murakami, Yoshinobu Miyatsu, Toshihiro Maeda, Hiroshi Mizokami
  • Method for Purifying Modified Major Mite Allergen
    Publication number: 20080113424
    Abstract: A method for purifying a modified major mite allergen obtained by the genetic recombination technique and a purified modified major mite allergen obtained by said method for purification are provided.
    Type: Application
    Filed: April 14, 2004
    Publication date: May 15, 2008
    Applicant: Juridicical Foundation the Chemo-Sero-Therapeutic Research Institute
    Inventors: Satoshi Koyanagi, Kenjiro Kawatsu, Toshio Murakami, Yoshinobu Miyatsu, Toshihiro Maeda, Hiroshi Mizokami