Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974470 | Heat-generative, steam generation sheet for face | Satoshi Tsunakawa, Masataka Ishikawa, Yoshiaki Kumamoto, Takao Orii, Haruyo Kojima | 2005-12-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974470 | Heat-generative, steam generation sheet for face | Satoshi Tsunakawa, Masataka Ishikawa, Yoshiaki Kumamoto, Takao Orii, Haruyo Kojima | 2005-12-13 |