Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830899 | Light reflection material, its manufacture and application | Sumio Nakahashi, Nobuki Seike | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830899 | Light reflection material, its manufacture and application | Sumio Nakahashi, Nobuki Seike | 1989-05-16 |