The things I planed to do in my third Japanese trip other than attending Idol events and visiting drama filming locations was having a yakiniku. However I missed chances to have it in the earlier days of the trip.
Finally I completed this wish at Pyon Pyon Sya GINZA UNA.
Speaking of famous green tea producers in Japan. One of them must be Ippodo. The over 300 years Kyoto tea producer that has its branch in New York. After I left NHK Studio Park, I had a chance to visit its branch in Marunouchi, Tokyo.
After I was full of sushi and do shopping enough. I was back in Japanese drama fan mode by visiting NHK Studio Park. The theme park of Japan major boardcastor NHK.
If you are asking about the famous sushi restaurant in Tokyo, one of them must be Sushi Midori or Umegaoka Sushi no Midori which is famous for fresh ingredients and good value.