Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10607904 | Method for producing airtight package by sealing a glass lid to a container | Toru Shiragami | 2020-03-31 |
| 10586745 | Airtight package and method for manufacturing same | Koichi YABUUCHI, Toru Shiragami | 2020-03-10 |