Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7427640 | Oil materials comprising dimerdiol ester and cosmetics comprising the ester | Tsuyoshi Katayama, Masakazu Okumura, Makoto Nakajima, Osamu Kimura | 2008-09-23 |
| 6183759 | Cosmetic composition | Masakazu Okumura, Masato Yoshioka, Sueko Kobayashi | 2001-02-06 |
| 5075131 | Method for preservation treatment of wood | Kuniharu Yokoo | 1991-12-24 |