Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143786 | Composite fibers, water-absorbing material using the composite fibers as a base material and method for producing the same | Toyoaki Tanaka, Akira Nakamura, Akihiro Hashimoto | 1992-09-01 |
| 5071705 | Composite fibres, water-absorbing material using the composite fibres as a base material and method for producing the same | Toyoaki Tanaka, Akira Nakamura, Akihiro Hashimoto | 1991-12-10 |