Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560739 | Method of forming a modified ground in an earthen foundation | — | 1996-10-01 |
| 5503501 | Excavator and a method of forming a modified ground in an earthen foundation with the use of the same | — | 1996-04-02 |
| 5484233 | Excavator and a method of forming a modified ground in an earthen foundation with the use of the same | — | 1996-01-16 |
| 5356241 | Foundation having cylindrical shell and construction method therefor | — | 1994-10-18 |
| 5320452 | Cast-in-place concrete pile and method of constructing the same in the ground | — | 1994-06-14 |
| 5304016 | Method for forming a pillar in an earthen foundation | — | 1994-04-19 |
| 5163784 | Double-tube type boring and kneading machine, and method for improving foundation ground therewith | — | 1992-11-17 |
| 4585678 | Steel sheet pile, sheet pile assembly thereof and the method of constructing the assembly | — | 1986-04-29 |