Patents by Inventor Matsufumi Takaya

Matsufumi Takaya 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).

  • Medical supplies and method of producing the same
    Patent number: 10668187
    Abstract: A method of producing metallic medical supplies includes supplying a metallic material selected from the group consisting of Ti, a Ti alloy, stainless steel and a Co—Cr alloy as a base material; treating the base material by carrying out anodic oxidation treatment in which an acid electrolytic bath or an alkali electrolytic bath is used as an electrolytic solution, and pulsed current having a frequency of 50 to 10,000 Hz is applied to the base material in the electrolytic solution to carry out electrolysis treatment to form a film having micro pores and/or micro unevennesses having a density of 5×104/mm2 or more on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds, wherein the metallic medical supplies have an antimicrobial activity value of not less than 2 to not more than 4.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 2, 2020
    Assignee: PROSTEC Co., Ltd.
    Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
  • MEDICAL SUPPLIES AND METHOD OF PRODUCING THE SAME
    Publication number: 20180243483
    Abstract: A method of producing metallic medical supplies includes supplying a metallic material selected from the group consisting of Ti, a Ti alloy, stainless steel and a Co—Cr alloy as a base material; treating the base material by carrying out anodic oxidation treatment in which an acid electrolytic bath or an alkali electrolytic bath is used as an electrolytic solution, and pulsed current having a frequency of 50 to 10,000 Hz is applied to the base material in the electrolytic solution to carry out electrolysis treatment to form a film having micro pores and/or micro unevennesses having a density of 5×104/mm2 or more on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds, wherein the metallic medical supplies have an antimicrobial activity value of not less than 2 to not more than 4.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 30, 2018
    Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
  • Medical supplies and method of producing the same
    Patent number: 9889231
    Abstract: A method of producing metallic medical supplies includes supplying a metallic material as a base material; treating the base material by carrying out any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments to form a film having micro pores and/or micro unevennesses having a density of 5? 104/mm2 on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 13, 2018
    Assignee: PROSTEC Co., Ltd.
    Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
  • MEDICAL SUPPLIES AND METHOD OF PRODUCING THE SAME
    Publication number: 20130240365
    Abstract: A method of producing metallic medical supplies includes supplying a metallic material as a base material; treating the base material by carrying out any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments to form a film having micro pores and/or micro unevennesses having a density of 5? 104/mm2 on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Applicant: PROSTEC CO., LTD.
    Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
  • MEDICAL SUPPLIES AND METHOD OF PRODUCING THE SAME
    Publication number: 20110313539
    Abstract: Metallic medical supplies include a metallic material as a base material, and a film having micro pores and/or micro unevenness on a surface of the base material, wherein the micro pores and/or micro unevennesses are impregnated with iodine or iodine compounds.
    Type: Application
    Filed: August 25, 2009
    Publication date: December 22, 2011
    Applicant: PROSTEC CO., LTD.
    Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
  • Black chromium electroplating process
    Patent number: 4174265
    Abstract: A conductive body as a cathode is electroplated with chromium in the presence of radioactive rays in a plating bath comprising an aqueous solution of chromium trioxide.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: November 13, 1979
    Inventors: Tomoya Minegishi, Matsufumi Takaya