Patents by Inventor Ivandini TRIBIDASARIANGGRANINGRUM

Ivandini TRIBIDASARIANGGRANINGRUM 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).

  • Ozone water concentration measurement apparatus and ozone water concentration measurement method
    Patent number: 9625405
    Abstract: An ozone water concentration measurement apparatus that is capable of measuring ozone concentrations with high accuracy and without using an electrolyte brings at least a counter electrode and a working electrode into contact with ozone water, which is a sample solution (S), applies voltage between the counter electrode and the working electrode, and measures the current value at that voltage, to thereby calculate the ozone concentration in the ozone water. In the ozone water concentration measurement apparatus, the working electrode is a conductive diamond electrode, and the surface area that contacts the ozone water of the working electrode is within the range of 628 to 392,500 ?m2.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 18, 2017
    Assignees: KEIO UNIVERSITY, NIKKA MICRON CO., LTD.
    Inventors: Yasuaki Einaga, Ivandini Tribidasarianggraningrum, Yuya Ishii, Shigeo Sekiguchi, Kazutaka Murata
  • OZONE WATER CONCENTRATION MEASUREMENT APPARATUS AND OZONE WATER CONCENTRATION MEASUREMENT METHOD
    Publication number: 20150330929
    Abstract: An ozone water concentration measurement apparatus that is capable of measuring ozone concentrations with high accuracy and without using an electrolyte brings at least a counter electrode and a working electrode into contact with ozone water, which is a sample solution (S), applies voltage between the counter electrode and the working electrode, and measures the current value at that voltage, to thereby calculate the ozone concentration in the ozone water. In the ozone water concentration measurement apparatus, the working electrode is a conductive diamond electrode, and the surface area that contacts the ozone water of the working electrode is within the range of 628 to 392,500 ?m2.
    Type: Application
    Filed: August 27, 2013
    Publication date: November 19, 2015
    Applicants: KEIO UNIVERSITY, NIKKA MICRON CO., LTD.
    Inventors: Yasuaki EINAGA, Ivandini TRIBIDASARIANGGRANINGRUM, Yuya ISHII, Shigeo SEKIGUCHI, Kazutaka MURATA