Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10047009 | Cement mortar composition | Tsutomu Yamakawa | 2018-08-14 |
| 10035728 | Concrete composition and making method | Tsutomu Yamakawa | 2018-07-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10047009 | Cement mortar composition | Tsutomu Yamakawa | 2018-08-14 |
| 10035728 | Concrete composition and making method | Tsutomu Yamakawa | 2018-07-31 |