AO

Akito Oba

Yamaha: 1 patents #81 of 230Top 40%
Overall (2011): #360,072 of 364,097Top 100%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8039725 Electronic keyboard instrument Takashi Kato, Takashi Fujita, Hideki Ishihara, Akiko Shinjo 2011-10-18