Patents by Inventor Tatsuaki Kamoi

Tatsuaki Kamoi 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).

  • Ultrasonic acoustic sensors for measuring formation velocities
    Patent number: 11921249
    Abstract: Example ultrasonic acoustic sensors for measuring formation velocities are disclosed herein. An example sensor includes a housing, a first transmitter carried by the housing, a second transmitter carried by the housing, and a receiver array carried by the housing and disposed between the first transmitter and the second transmitter. The first transmitter is disposed at a first angle relative to a surface the housing and the second transmitter is disposed at second angle relative to the surface the housing.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: March 5, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hiroshi Hori, Evgeniya Deger, Tatsuaki Kamoi, Hiroshi Nakajima
  • Ultrasonic transducers for measuring formation velocities
    Patent number: 11493657
    Abstract: Example ultrasonic transducers for measuring formation velocities are disclosed herein. An example apparatus includes a housing and an acoustic transducer having a first surface and a second surface opposite the first surface. The acoustic transducer is at least partially disposed in the housing. The example apparatus includes a window supported by the housing. At least a portion of the first surface of the acoustic transducer is in contact with the window. The housing and the window are to form a fluid seal for the acoustic transducer.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: November 8, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Hiroshi Nakajima, Tatsuaki Kamoi, Hiroshi Hori, Evgeniya Deger
  • ULTRASONIC ACOUSTIC SENSORS FOR MEASURING FORMATION VELOCITIES
    Publication number: 20210055444
    Abstract: Example ultrasonic acoustic sensors for measuring formation velocities are disclosed herein. An example sensor includes a housing, a first transmitter carried by the housing, a second transmitter carried by the housing, and a receiver array carried by the housing and disposed between the first transmitter and the second transmitter. The first transmitter is disposed at a first angle relative to a surface the housing and the second transmitter is disposed at second angle relative to the surface the housing.
    Type: Application
    Filed: February 8, 2019
    Publication date: February 25, 2021
    Inventors: Hiroshi Hori, Evgeniya Deger, Tatsuaki Kamoi, Hiroshi Nakajima
  • ULTRASONIC TRANSDUCERS FOR MEASURING FORMATION VELOCITIES
    Publication number: 20200363550
    Abstract: Example ultrasonic transducers for measuring formation velocities are disclosed herein. An example apparatus includes a housing and an acoustic transducer having a first surface and a second surface opposite the first surface. The acoustic transducer is at least partially disposed in the housing. The example apparatus includes a window supported by the housing. At least a portion of the first surface of the acoustic transducer is in contact with the window. The housing and the window are to form a fluid seal for the acoustic transducer.
    Type: Application
    Filed: February 8, 2019
    Publication date: November 19, 2020
    Inventors: Hiroshi Nakajima, Tatsuaki Kamoi, Hiroshi Hori, Evgeniya Deger