Tohoku Electrical Safety Inspection Association is the organization in Japan founded in 1966.
According to PR-model, t-hoan.or.jp is ranked 1,132,829th in multilingual Wikipedia, in particular this website is ranked 92,295th in Japanese Wikipedia.
The website is placed before diwaniyya.blogspot.com and after rectron.com in the BestRef global ranking of the most important sources of Wikipedia.