Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8383689 | Skin cosmetics comprising cocoon-shaped polymer fine particles | Koichiro Tanaka, Sadao Negayama, Naomi Ishii | 2013-02-26 |
| 4382896 | Process for producing 4,4'-diphenyldisulfonic acid and its monopotassium salt | Koji Nishihara, Takeshi Hashimoto, Katsuhiko Sato | 1983-05-10 |