1.

2.

3.

4.

5.

1.

3.

1.

2.

patent)

2522

,

,

2534

2) 2543

Trade Mark)

2. Service Mark)

3. Certification Mark)

4. Collective Mark)

!

ค.

ค.

25 2539 26 2539

27 2539 282539

.1997 1998

ค. 1999 5. Toward the Age of Digital Economy

patent)

ค.

2522 25232524 2525

2)

ค.

2533 25342535 2536

Answer