Patents by Inventor Matsuhiko Nishizawa

Matsuhiko Nishizawa 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: 20130126220
    Abstract: A porous structure (1) provided with a pattern that is composed of a conductive polymer, which comprises a porous body (2) and a pattern (3) that is composed of a conductive polymer and arranged on the porous body (2). The porous body (2) is preferably a gel, and a dopant may be added to the pattern (3) that is composed of a conductive polymer. If an agarose gel is used as the gel (2) and a PEDOT electrode (3A) is used as the pattern (3) that is composed of a conductive polymer in the porous structure (1) which is provided with the pattern (3) that is composed of a conductive polymer, the porous structure (1) can be used as an electrode for cell stimulation. The porous structure (1) provided with the pattern (3) that is composed of a conductive polymer can be produced by an electropolymerization method.
    Type: Application
    Filed: March 25, 2011
    Publication date: May 23, 2013
    Applicant: TOHOKU UNIVERSITY
    Inventors: Matsuhiko Nishizawa, Soichiro Sekine, Yuichiro Ido
  • Publication number: 20120177717
    Abstract: Disclosed is a drug delivery system for delivering a drug at a sustained constant rate for a long period, which can be transplanted into an affected part safely and in a simple manner and can deliver a drug to the affected part for a long period. Specifically disclosed is a sustained drug delivery system in which an implant is implanted into a body, wherein the implant is a PEG capsule comprising a box-shaped PEG and a porous PEG sheet.
    Type: Application
    Filed: February 16, 2012
    Publication date: July 12, 2012
    Applicant: TOHOKU UNIVERSITY
    Inventors: Toshiaki ABE, Nobuhiro NAGAI, Hirokazu KAJI, Takeaki KAWASHIMA, Matsuhiko NISHIZAWA, Koji NISHIDA
  • Publication number: 20110046509
    Abstract: The invention provides a method for evaluating a corneal disorder quantitatively and is applicable to living eyes. In particular, the invention provides a method for measuring a corneal transepithelial electric resistance, which method comprises: (1) a step of placing a first electrode on the cornea and a second electrode on the conjunctiva; and (2) a step of flowing an electric current between the first electrode and the second electrode to measure the electric resistance. The invention also provides a device for measuring a corneal transepithelial electric resistance value.
    Type: Application
    Filed: March 3, 2009
    Publication date: February 24, 2011
    Applicants: NAGASAKI UNIVERSITY, TOHOKU UNIVERSITY
    Inventors: Masafumi Uematsu, Takashi Kitaoka, Koji Nishida, Yuji Tanaka, Matsuhiko Nishizawa, Hirokazu Kaji, Soichiro Sekine
  • Patent number: 7544438
    Abstract: An object of the present invention is to provide a highly functional mediator capable of smoothly proceeding electron transfer between an electrode and a biocatalyst based on the premise that the mediator excels in safety and cost and to provide an electrode and a cell with sufficient amount of such a mediator molecule immobilized efficiently and strongly. The present invention provides a mediator mediating electron transfer between an enzyme and an electrode and containing a quinone molecule derivative, in particular, a mediator containing a VK3 derivative. In addition, the present invention provides an electrode and a biofuel cell to which those mediators are applied.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: June 9, 2009
    Assignee: Daiichi Pure Chemicals Co., Ltd
    Inventors: Matsuhiko Nishizawa, Tomokazu Matsue, Jun-ichi Kosuge, Noboru Fukasaku
  • Publication number: 20080248972
    Abstract: It is intended to provide a novel method of immobilizing a protein and a protein chip, by which the protein can be immobilized at a high reproducibility while preventing the protein from inactivation without resort to a large-scaled apparatus and the protein can be immobilized even in a microchannel. Further, by using a cell adhesive protein as the protein to be immobilized, it is also possible to use a cell as a target and to provide a method of immobilizing a cell and a cell chip, by which a cell can be immobilized in an arbitrary region on a substrate.
    Type: Application
    Filed: March 10, 2005
    Publication date: October 9, 2008
    Inventors: Matsuhiko Nishizawa, Hirokazu Kaji, Tomokazu Matsue
  • Publication number: 20050049313
    Abstract: An object of the present invention is to provide a highly functional mediator capable of smoothly proceeding electron transfer between an electrode and a biocatalyst based on the premise that the mediator excels in safety and cost and to provide an electrode and a cell with sufficient amount of such a mediator molecule immobilized efficiently and strongly. The present invention provides a mediator mediating electron transfer between an enzyme and an electrode and containing a quinone molecule derivative, in particular, a mediator containing a VK3 derivative. In addition, the present invention provides an electrode and a biofuel cell to which those mediators are applied.
    Type: Application
    Filed: March 23, 2004
    Publication date: March 3, 2005
    Inventors: Matsuhiko Nishizawa, Tomokazu Matsue, Jun-ichi Kosuge, Noboru Fukasaku