Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276337 | Annular metal seal, attachment structure for annular metal seal, and attachment method for annular metal seal | Kazuyuki Kashihara | 2025-04-15 |
| 11732803 | Metal seal | Kazuyuki Kashihara | 2023-08-22 |