Yes, he is married to a model called Shie Kohinata. She is also a bassist, a singer, an actress and a seiyuu. Her real name is Shouko, her friends call her as Shie-chan or Shieko. Shie started to work with 15 years in 1994, she was basically a gravure idol, appeared in a lot of magazines like Olive. In 1997 she started her singer carrer. Shie recorded an mini album and 7 singles. She has appeared in some commercials. Later she acted in a (terrible) movie. As seiyuu she worked in Trava Fist Planet, Michiko to Hatchin, Oden Kun and Ganbare! Oden Kun. Last year she was appeared in Hug Mug magazine covers (in this year she was replaced by Ellie Toyota). Now she is the vocalist and bassist of a starting (probably rock) girl band called nelca. Some japanese people consider Shie Kohinata the most beautiful of gaki no tsukai regular members wives
Tanaka's wife as appeared in 2 no laughing batsu games, in 2013 as a student and in 2014 in her first son video. She is really beautiful and talented (and tall as her husband).
Tanaka and Shie are married since 2003 and they have 2 child (the second have his b'day 2 days before Tanaka's), their marriage was a bit curious because, according Shie, they hadn't a dating before marry, Tanaka never kissed his wife, hold her hand, or other dating things. They acted together at Cocorico Miracle Type, sometimes Tanaka and Shie acted as lovers (they acted in an episode which they was marrying). Tanaka and Shie actually work together as seiyuu of the anime Ganbare! Oden Kun (years ago they at Oden Kun anime too). In Shie's first appearance, Tanaka was very surprised and delighted with his wife. It's so cute
Did you know that Ogawa Natsumi (Hamada's wife) invited Tanaka and Shie to her new years party? (Yes, Tanaka uses glasses
and Shie was with bowl hair)http://blogs.yahoo.co.jp/tabasa7_blog/25807611.html
I hope helped you