Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5613714 | Separation-preventive pipe joint | Takahiro Ishihara, Takashi Yokomizo | 1997-03-25 |
| 5609368 | Separation preventive pipe joint | Atsushi Maki, Takahiro Ishihara | 1997-03-11 |
TT
Toshio Toshima
Overall (1997): #21,116 of 185,788Top 15%
2
Patents 1997