Gakken Co., Ltd. (株式会社学習研究社, Kabushiki-gaisha Gakushū Kenkyū Sha)is a Japanese publishing company founded in 1947 by Hideto Furuoka, which also produces educational toys. Their annual sales is reported at ¥ 821 billion ($6.5 billion US).
Gakken is perhaps originally known for producing Denshi blocks and packaging them within electronic toy kits such as the Gakken EX-System, as far back as the 1970s. One of their original lines, the EX-150, was reissued in 2002, and was so popular as to inspire an expansion pack. - http://en.wikipedia.org/wiki/Gakken
Gakken is known in our circles for producing toys for the TV show Genesis Climber Mospeada, which went on to be adapted as Robotech, the Next Generation.
Database listings may be incomplete and / or out of date and is not meant to be a complete listing of all toys. If you are on a parent topic, click on the child topic in the list above to get more concise results