Patents by Inventor Mayu Hasegawa

Mayu Hasegawa 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).

  • Water-based coolant
    Patent number: 10421924
    Abstract: Disclosed herein is a method of using a water-based coolant for quenching or cutting a metal material. The water-based coolant is formed of: water; at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate; a metal corrosion inhibitor; and optionally at least one of a bactericide, a water-soluble rust inhibitor, an antioxidant and a detergent dispersant.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: September 24, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Mayu Hasegawa, Masahisa Goto, Katsumi Ichitani, Kenro Noguchi
  • WATER-BASED COOLANT
    Publication number: 20170247633
    Abstract: Disclosed herein is a method of using a water-based coolant for quenching or cutting a metal material. The water-based coolant is formed of: water; at least one inorganic acid salt selected from the group consisting of a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate and a tungstate; a metal corrosion inhibitor; and optionally at least one of a bactericide, a water-soluble rust inhibitor, an antioxidant and a detergent dispersant.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Mayu HASEGAWA, Masahisa GOTO, Katsumi ICHITANI, Kenro NOGUCHI
  • WATER-BASED COOLANT
    Publication number: 20150315512
    Abstract: A water-based coolant contains: at least one inorganic acid salt selected from among carbonate, hydrogen carbonate, sesquicarbonate, phosphate, borate, molybdate and tungstate; and a metal corrosion inhibitor. The water-based coolant is excellent in cooling performance and unlikely to cause corrosion of a metal material to be cooled. Therefore, the water-based coolant is suitably usable as a quenchant or a cutting oil.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 5, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Mayu HASEGAWA, Masahisa GOTO, Katsumi ICHITANI, Kenro NOGUCHI
  • WATER-BASED COOLANT
    Publication number: 20150000710
    Abstract: A water-based coolant contains at least one inorganic acid salt of phosphate, phosphite, sulfate, sulfite, borate, molybdate, tungstate, carbonate, hydrogen carbonate and sesquicarbonate. Since the water-based coolant of the invention exhibits a high cooling capability but does not easily corrode a metallic material (a cooling object), the water-based coolant of the invention is suitable as a quenching oil or a cutting oil for the metallic material.
    Type: Application
    Filed: February 27, 2013
    Publication date: January 1, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Mayu Hasegawa, Masahisa Goto, Katsumi Ichitani, Kenro Noguchi