Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10464107 | Substrate processing method and substrate processing apparatus | Keiji Iwata, Sei NEGORO, Yuji Sugahara | 2019-11-05 |
| 6607719 | Keratotic plug remover | Masanori Tanahashi, Yoshiyuki Muroi, Yoshinao Kono | 2003-08-19 |
| 6306382 | Keratotic plug remover | Masanori Tanahashi, Yoshinao Kono | 2001-10-23 |
| D388533 | Beauty mask sheet for nose | Koichi Ishida | 1997-12-30 |
| D388534 | Beauty mask sheet for nose | Koichi Ishida | 1997-12-30 |
| 5512277 | Keratotic plug remover | Masanori Tanahashi, Yoshiyuki Muroi, Yoshinao Kono | 1996-04-30 |