Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D638522 | Seal ring for stern tube | Motofumi Inaba, Minoru Takayasu | 2011-05-24 |
| D638523 | Seal ring for stern tube | Motofumi Inaba, Minoru Takayasu | 2011-05-24 |
| D631948 | Seal ring for stern tube | Motofumi Inaba, Minoru Takayasu | 2011-02-01 |