Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497871 | Simple warmth-retaining article and a warmth-retaining cloth | — | 2009-03-03 |
| 7498281 | Nonwoven fabric and tea bag | Hirohiko Nagao, Naoko Yamaguchi, Mitsunori Saito | 2009-03-03 |