Walter Frederick Morrison disc more cheaply. In 1955, he and Lu designed the Pluto Platter, the archetype of all modern flying discs. On January 23, 1957, they sold the rights for the Pluto Platter to the Wham-O toy company. Initially Wham-O continued to market the toy solely as the "Pluto Platter", but by June 1957 they also began using the name "Frisbee" after learning that college students in the Northeast were calling the Pluto Platter by that name. Morrison also invented several other products for Wham-O, but none were as successful as the Pluto Platter. Morrison and his wife, Lu Nay Morrison had
The Familiar of Zero volume three in English under the title "The Familiar of Zero", and in the Czech Republic by Zoner Press. A spin-off series, illustrated by Higa Yukari and titled as "Zero no Tsukaima Chevalier", was serialized between the March 2010 and May 2013 issues of "Comic Alive" and later compiled in four volumes. It was also released in North America by Seven Seas Entertainment under the name "Zero's Familiar Chevalier". Two other spin-offs were serialized in "Comic Alive": "Zero no Tsukaima Gaiden: Tabatha no Bōken" by Takuto Kon, which was serialized between December 2007 and August 2010 issues and compiled in