Patents by Inventor Tomoyuki MAKI

Tomoyuki MAKI 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).

  • Oil resistance test method and oil resistance test apparatus
    Patent number: 10330721
    Abstract: An oil resistance test method for an electronic device is provided. At least one type of resin material is provided on at least a portion of an outer surface of the electronic device. The oil resistance test method includes: setting a test temperature; and immersing the electronic device in a water-soluble cutting oil in an atmosphere of the set test temperature. This cutting oil contains a mineral oil and a surfactant, and exhibits a milky-white appearance when diluted with water. The oil resistance test method further includes: determining, based on an electrical characteristic of the electronic device, whether or not the electronic device has been degraded by the cutting oil; and estimating, based on a total immersion time of the electronic device in the cutting oil until degradation of the electronic device is detected, a life of oil resistance of the electronic device.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 25, 2019
    Assignee: OMRON CORPORATION
    Inventors: Tsutomu Kume, Tomoyuki Maki, Kyoji Kitamura, Masaki Nakamura
  • OIL RESISTANCE TEST METHOD AND OIL RESISTANCE TEST APPARATUS
    Publication number: 20170285093
    Abstract: An oil resistance test method for an electronic device is provided. At least one type of resin material is provided on at least a portion of an outer surface of the electronic device. The oil resistance test method includes: setting a test temperature; and immersing the electronic device in a water-soluble cutting oil in an atmosphere of the set test temperature. This cutting oil contains a mineral oil and a surfactant, and exhibits a milky-white appearance when diluted with water. The oil resistance test method further includes: determining, based on an electrical characteristic of the electronic device, whether or not the electronic device has been degraded by the cutting oil; and estimating, based on a total immersion time of the electronic device in the cutting oil until degradation of the electronic device is detected, a life of oil resistance of the electronic device.
    Type: Application
    Filed: February 6, 2017
    Publication date: October 5, 2017
    Applicant: OMRON Corporation
    Inventors: Tsutomu KUME, Tomoyuki MAKI, Kyoji KITAMURA, Masaki NAKAMURA