Thank you very much ALLurGroceries.
I succeeded applying the patch to my asus U30Jc on Ubuntu 10.04.
Touchpad is properly recognized as Elantech touchpad and I can turn off the tapping.
However, one problem remains.
The problem is that the cursor moves when I touch the pad.
For example, when I touch the right side of the pad, the cursor moves to the right side.
The situations of top, bottom, and left are also similar.
And I can not scroll with the touchpad.
I think scrolling may be correct when the solution for the cursor is found.
Are there the solution for this problem?