The most finely handwoven carpet has 14,440,000 knots per m² and was made by Zhenping Carpet Industry (Group) Corp, China to celebrate the 30th anniversary of the Chiyoda Rugs Company (Japan). The carpet was completed on 1 November 2004 after being in production for over 3 years.

The carpet is now owned by Mrs Mitsue Takitai, Japan.