Patents by Inventor Yasuhiko Kasahara

Yasuhiko Kasahara 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 for regenerating hyaline cartilage
    Patent number: 9216201
    Abstract: The present invention provides a composition for regenerating cartilage or treating a cartilage disease containing a monovalent metal salt of alginic acid for which the endotoxin level thereof has been lowered to an extent that does not substantially induce inflammation or fever. As a result, it is possible to provide a composition for regenerating cartilage that improves cartilage regenerative action and ease of application to a cartilage injury lesion, and a composition for treating a cartilage disease, which has the effects of protecting cartilage from mechanical irritation, inhibiting degenerative changes in cartilage caused by wear and inflammation, repairing a cartilage injury lesion, and inhibiting inflammation and pain of joint tissue.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 22, 2015
    Assignees: Mochida Pharmaceutical Co., Ltd., National University Corporation Hokkaido University
    Inventors: Norimasa Iwasaki, Akio Minami, Yasuhiko Kasahara, Tatsuya Igarashi, Daisuke Kawamura, Fumiyoshi Kasahara, Chihiro Miyajima, Nobuo Ohzawa, Mariko Imai
  • Compositions and methods for treating cartilage disease
    Patent number: 8372394
    Abstract: The present invention provides a composition for regenerating cartilage or treating a cartilage disease containing a monovalent metal salt of alginic acid for which the endotoxin level thereof has been lowered to an extent that does not substantially induce inflammation or fever. As a result, it is possible to provide a composition for regenerating cartilage that improves cartilage regenerative action and ease of application to a cartilage injury lesion, and a composition for treating a cartilage disease, which has the effects of protecting cartilage from mechanical irritation, inhibiting degenerative changes in cartilage caused by wear and inflammation, repairing a cartilage injury lesion, and inhibiting inflammation and pain of joint tissue.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: February 12, 2013
    Assignees: Mochida Pharmaceutical Co., Ltd., National University Corporation Hokkaido University
    Inventors: Norimasa Iwasaki, Akio Minami, Yasuhiko Kasahara, Tatsuya Igarashi, Daisuke Kawamura, Fumiyoshi Kasahara, Chihiro Miyajima, Nobuo Ohzawa, Mariko Imai
  • Composition for treating arthritic disorder
    Patent number: 8367637
    Abstract: The present invention provides compositions and methods for treating a joint disease containing as an active ingredient thereof a monovalent metal salt of alginic acid for which the endotoxin level thereof has been lowered to an extent that does not substantially induce inflammation or fever. As a result, it is possible to provide a composition for treating a joint disease which has the effects of protecting cartilage from mechanical irritation, inhibiting degenerative changes in cartilage caused by wear and inflammation, repairing cartilage injuries, suppressing inflammation and pain of joint tissue, inhibiting degeneration of synovial tissue, and inhibiting osteochondral destruction.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 5, 2013
    Assignees: Mochida Pharmaceutical Co., Ltd., National University Corporation Hokkaido University
    Inventors: Norimasa Iwasaki, Akio Minami, Yasuhiko Kasahara, Tatsuya Igarashi, Daisuke Kawamura, Nobuo Ohzawa, Mariko Imai
  • Composition for treating arthritic disorder
    Publication number: 20100048506
    Abstract: The present invention provides compositions and methods for treating a joint disease containing as an active ingredient thereof a monovalent metal salt of alginic acid for which the endotoxin level thereof has been lowered to an extent that does not substantially induce inflammation or fever. As a result, it is possible to provide a composition for treating a joint disease which has the effects of protecting cartilage from mechanical irritation, inhibiting degenerative changes in cartilage caused by wear and inflammation, repairing cartilage injuries, suppressing inflammation and pain of joint tissue, inhibiting degeneration of synovial tissue, and inhibiting osteochondral destruction.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 25, 2010
    Inventors: Norimasa Iwasaki, Akio Minami, Yasuhiko Kasahara, Tatsuya Igarashi, Daisuke Kawamura, Nobuo Ohzawa, Mariko Imai
  • Composition for treatment of cartilage disease
    Publication number: 20100015102
    Abstract: The present invention provides a composition for regenerating cartilage or treating a cartilage disease containing a monovalent metal salt of alginic acid for which the endotoxin level thereof has been lowered to an extent that does not substantially induce inflammation or fever. As a result, it is possible to provide a composition for regenerating cartilage that improves cartilage regenerative action and ease of application to a cartilage injury lesion, and a composition for treating a cartilage disease, which has the effects of protecting cartilage from mechanical irritation, inhibiting degenerative changes in cartilage caused by wear and inflammation, repairing a cartilage injury lesion, and inhibiting inflammation and pain of joint tissue.
    Type: Application
    Filed: February 21, 2008
    Publication date: January 21, 2010
    Inventors: Norimasa Iwasaki, Akio Minami, Yasuhiko Kasahara, Tatsuya Igarashi, Daisuke Kawamura, Fumiyoshi Kasahara, Chihiro Miyajima, Nobuo Ohzawa, Mariko Imai