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Syoji Hirao Patents |
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Inventor: Hirao; Syoji
Address: Takatsuki, JP
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6905286 |
Porous pipe and apparatus and method of producing the same |
June 14, 2005 |
| A porous pipe having an excellent absorbing and draining function, a producing apparatus capable of producing a porous pipe at high speed and low cost, and a method of producing a porous pipe are provided. The porous pipe is a pipe formed by spirally winding a tape. The pipe is formed by |
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