I do. The oldest Jomon skeleton ever found is 13,000 years old and was found in Japan. The Jomon are believed to have been the first pottery makers and their pottery is marked with a distinctive 'cord-marked' pattern. Similar 'cord-markings' have been found in the Olmec sites in Mexico.
Ainu: Spirit of a Northern People
Recent DNA research shows that they are descended from the ancient Jomon people of Japan. Physically, the Ainu differed from Japanese and other nearby Asian peoples in language and especially in ...
www.mnh.si.edu/arctic/ainu/html/ room01.html · Cached page
I assume you saw the recent articles about those writings from Olmecs. I have read that Olmec could of came from the Shang Dynasty in an article you posted. I wonder if Ancient Chinese had Jomons amongst them?