Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10294640 | Storage tank and method for constructing same | — | 2019-05-21 |
| 9079708 | Storage composite, and storage tank and permeable storage tank using same | — | 2015-07-14 |
| 8926836 | Rainwater filtering device for inflow path | — | 2015-01-06 |
| 8028713 | Underground water storage tank | — | 2011-10-04 |
| 7775232 | Flowing-down rainwater filtration device and rainwater storage device using the same | — | 2010-08-17 |
| 7549687 | Dismounting device for heavy load hoisting sling | — | 2009-06-23 |
| 6382237 | Wide area water collection type underground water tank | — | 2002-05-07 |
| 5873383 | General service water storing equipment | Mitsuhiko Tsuchiya | 1999-02-23 |
| 5681455 | Flowing-down rainwater flow-separating pipe | Masuji Oi | 1997-10-28 |
| 5161705 | Dismounting device for heavy load hoisting member | — | 1992-11-10 |