Restaurant chain owner Monteroza has filed a claim against Nintendo over the use of its "WaraWara Plaza" trademark.
Monteroza — which operates 300 restaurants in the far east and runs a chain of Japanese-style public houses under the brand Wara-wara — filed a request with the Japanese Patent Office at the end of March to have Nintendo’s trademark declared void.
Nintendo is currently pleading ignorance, stating that it registered its own trademark without incident and was unaware of the Monteroza's chain of public houses at the time.
The term "Warawara" is actually quite commonly used in Japan, and means “laugh laugh". The two companies have registered the trademark in different ways, with Monteroza using kanji while Nintendo has opted for hiragana.