Patents by Inventor Tomoaki Asaoka

Tomoaki Asaoka 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).

  • Heat treatment furnace, heating device, manufacturing method of wire electrode and heat diffusion treatment method
    Patent number: 11835294
    Abstract: The disclosure is a heat treatment furnace which heats an element wire for a wire electrode to perform a heat diffusion treatment and includes: first, second and third rotary electrodes to which a voltage is applied; a motor that rotationally drives the rotary electrodes; and a control device. The first, second and third rotary electrodes are arranged in a manner that the element wire is laid in a V-shape or an I-shape in an order of the second rotary electrode, the first rotary electrode and the third rotary electrode from the upstream side in a travel direction of the element wire. The element wire is caused to travel, a voltage is applied to the first, second and third rotary electrodes, and a current flows through and heats the element wire which travels in a first heating section and a second heating section.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: December 5, 2023
    Assignee: Sodick Co., Ltd.
    Inventors: Tetsuro Kawahara, Tomoaki Asaoka, Masaru Nakamura
  • HEAT TREATMENT FURNACE, HEATING DEVICE, MANUFACTURING METHOD OF WIRE ELECTRODE AND HEAT DIFFUSION TREATMENT METHOD
    Publication number: 20210239398
    Abstract: The disclosure is a heat treatment furnace which heats an element wire for a wire electrode to perform a heat diffusion treatment and includes: first, second and third rotary electrodes to which a voltage is applied; a motor that rotationally drives the rotary electrodes; and a control device. The first, second and third rotary electrodes are arranged in a manner that the element wire is laid in a V-shape or an I-shape in an order of the second rotary electrode, the first rotary electrode and the third rotary electrode from the upstream side in a travel direction of the element wire. The element wire is caused to travel, a voltage is applied to the first, second and third rotary electrodes, and a current flows through and heats the element wire which travels in a first heating section and a second heating section.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 5, 2021
    Applicant: Sodick Co., Ltd.
    Inventors: Tetsuro Kawahara, Tomoaki Asaoka, Masaru Nakamura