Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9332760 | Wet hand towel and method for producing the same | Katsuaki Dan, Hiromichi Ichikawa | 2016-05-10 |
| 6565890 | Antiviral drugs containing heteropolyanions | Shiro Shigeta | 2003-05-20 |
| 4345982 | Process for the production of hydrogen utilizing a photogalvanic effect of a polyacid ion | Tsuneo Ikawa | 1982-08-24 |