Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7964222 | Aqueous external preparation for scalp | Hideshi Kidena | 2011-06-21 |
| 5980924 | Skin cleansing sheet | Ritsuko Yamazaki, Isao Umemoto, Manabu Kaneda, Yasuhiro Komori | 1999-11-09 |
| 5756437 | Aqueous gel cleanser comprising fatty acid ester of peg as nonionic surfactant | Ritsuko Yamazaki, Yasushi Kajihara | 1998-05-26 |