Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4619963 | Radiation shielding composite sheet material | Hisataka Shoji | 1986-10-28 |
| 4485838 | Methods for manufacturing lead fiber and radiation shielding material using the same | Hisataka Shoji | 1984-12-04 |