Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8888621 | Self-lubricating chain | Makoto Fujiwara | 2014-11-18 |
| 7467509 | Seal chain | Makoto Fujiwara | 2008-12-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8888621 | Self-lubricating chain | Makoto Fujiwara | 2014-11-18 |
| 7467509 | Seal chain | Makoto Fujiwara | 2008-12-23 |