Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10265800 | Welding apparatus and nozzle device | Naotada Okada, Susumu Yahagi | 2019-04-23 |
| 10224519 | Secondary battery and method of manufacturing the same | Tetsuo Sakai, Natsuki Toyota, Naotada Okada, Susumu Yahagi | 2019-03-05 |