Patents by Inventor Zenichi Nishi

Zenichi Nishi 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 forming hypobromous acid in aqueous system
    Patent number: 7785559
    Abstract: A method which especially can safely produce a hypobromous acid or a water-soluble salt thereof, that does not require expensive equipment or the like, does not involve extra work such as pre-mixing or have restrictions such as producing immediately prior to use, and is simple. Further, a method which can efficiently and rapidly form a hypobromous acid or a water-soluble salt thereof which is stable and has high sterilization/anti-microbial effect, and which does not form harmful bromic acid. At least either a hypobromous acid or a water-soluble salt thereof is formed by reacting at least either a hypochlorous acid or a water-soluble salt thereof with a bromide in a liquid to be treated, wherein the at least either hypobromous acid a water-soluble salt thereof is formed by adding a modified chlorite to the liquid to be treated.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: August 31, 2010
    Assignee: Tohzai Chemical Industry Co., Ltd.
    Inventors: Zenichi Nishi, Koichi Kudoh, Naoya Okamoto
  • Method of forming hypobromous acid in aqueous system
    Publication number: 20090047208
    Abstract: A method which especially can safely produce a hypobromous acid or a water-soluble salt thereof, that does not require expensive equipment or the like, does not involve extra work such as pre-mixing or have restrictions such as producing immediately prior to use, and is simple. Further, a method which can efficiently and rapidly form a hypobromous acid or a water-soluble salt thereof which is stable and has high sterilization/anti-microbial effect, and which does not form harmful bromic acid. At least either a hypobromous acid or a water-soluble salt thereof is formed by reacting at least either a hypochlorous acid or a water-soluble salt thereof with a bromide in a liquid to be treated, wherein the at least either hypobromous acid a water-soluble salt thereof is formed by adding a modified chlorite to the liquid to be treated.
    Type: Application
    Filed: November 22, 2004
    Publication date: February 19, 2009
    Applicant: TOHZAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Zenichi Nishi, Koichi Kudoh, Naoya Okamoto