Is Sun Guangru famous in Tianjin? thank you

Mr. Sun Guangru, a native of Tianjin, is now a member of Tianjin Calligraphers Association. His invention of "paper (golden nine-grid)", that is, "golden nine-grid in character frame", was approved by China Patent Office on August 29th, 1998 with the patent number of "ZL 97 3 28 10 1.4". In the same year, Tianjin Ancient Books Publishing House published his own "Golden Rate of Regular Script". Mr. Sun Guangru went to Hong Kong in July 200012000 to hold a calligraphy exhibition and lecture at the Hong Kong Visual Arts Center, which was warmly praised. In May, 2007, Tianjin People's Fine Arts Publishing House published a new book "Decoding Chinese Character Structure Codes", which has been fully sold in major cities in China, Hong Kong, Macao and Taiwan, and has been welcomed by the majority of calligraphy lovers.