Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11729868 | Induction heating device, induction heating equipment, induction heating method, and heat treatment method | Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi +3 more | 2023-08-15 |
| 10952288 | Induction heating device, induction heating equipment, induction heating method, and heat treatment method | Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi +3 more | 2021-03-16 |
| 10582575 | Heating coil | Yutaka Kiyosawa, Yutaka Sugiyama | 2020-03-03 |
| 10462854 | Apparatus and method for heating annular workpiece, and heating coil | Yutaka Kiyosawa, Shigeo Takahashi | 2019-10-29 |
| 10057945 | Induction heating device, induction heating equipment, induction heating method, and heat treatment method | Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi +3 more | 2018-08-21 |
| 6024913 | Precision quenching apparatus and method with induction heating | Daiji Itoh, Yoshimasa Tanaka, Hisashi Tabuchi | 2000-02-15 |