Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322544 | Ultraviolet absorbing agent | Kenichi Tomita, Hakuji Katsura, Masayuki Tejima, Masako Naganuma | 1982-03-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322544 | Ultraviolet absorbing agent | Kenichi Tomita, Hakuji Katsura, Masayuki Tejima, Masako Naganuma | 1982-03-30 |