Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12358067 | Resistance spot welding method and weld member production method | Chikaumi Sawanishi, Hiroshi Matsuda | 2025-07-15 |
| 12208462 | Steel sheet assembly, method of manufacturing steel sheet assembly, and spot welding process | Hiroshi Matsuda, Muneo Matsushita, Rinsei Ikeda, Kenji Oi | 2025-01-28 |
| 11504796 | Resistance spot welding method | Chikaumi Sawanishi, Rinsei Ikeda | 2022-11-22 |
| 11427880 | High-strength galvanized steel sheet and method for manufacturing same | Hiromi Yoshitomi, Masaki Koba, Hiroshi Matsuda, Yoshihiko Ono | 2022-08-30 |
| 11408059 | High-strength galvanized steel sheet and method for manufacturing same | Hiromi Yoshitomi, Masaki Koba, Yoshihiko Ono, Hiroshi Matsuda | 2022-08-09 |
| 11168378 | Hot-pressed member and manufacturing method therefor | Rinsei Ikeda, Seiji Nakajima, Koichi Nakagawa | 2021-11-09 |
| 10722972 | Resistance spot welding device | Koichi Taniguchi, Rinsei Ikeda | 2020-07-28 |
| 10641304 | Resistance spot welding method and weld joint | Koichi Taniguchi, Rinsei Ikeda | 2020-05-05 |
| 10625365 | Resistance spot welding method | Chikaumi Sawanishi, Hiroshi Matsuda, Rinsei Ikeda | 2020-04-21 |
| 10328518 | Resistance spot welding method | Chikaumi Sawanishi, Rinsei Ikeda, Kenji Oi | 2019-06-25 |
| 10081074 | Resistance spot welding device and resistance spot welding method | Chikaumi Sawanishi, Hiroshi Matsuda, Rinsei Ikeda | 2018-09-25 |
| 9895764 | Resistance spot welding system | Chikaumi Sawanishi, Rinsei Ikeda | 2018-02-20 |
| 9895765 | Resistance spot welding method | Koichi Taniguchi, Rinsei Ikeda | 2018-02-20 |
| 9821404 | Resistance spot welding method | Chikaumi Sawanishi, Rinsei Ikeda | 2017-11-21 |
| 9737955 | Welded joint manufactured by method of resistance spot welding | Koichi Taniguchi, Rinsei Ikeda | 2017-08-22 |
| 9475147 | Method of resistance spot welding of high tensile strength steel sheet and welding joint manufactured by the method | Koichi Taniguchi, Rinsei Ikeda | 2016-10-25 |
| 8389128 | High tensile-strength galvanized steel sheet and process for manufacturing high tensile-strength galvanized steel sheet | Shusaku Takagi, Hidetaka Kawabe, Kohei Hasegawa, Toshihiko Ooi, Michitaka Sakurai | 2013-03-05 |