Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9735875 | Field device and communication system | — | 2017-08-15 |
| 9643238 | Manufacturing method of metal shell formed body for spark plug, manufacturing method of metal shell for spark plug, and spark plug manufacturing method | Mitsunari Kariya | 2017-05-09 |