AN

Akihiro Nagayama

Yamaha: 2 patents #899 of 2,001Top 45%
Overall (All Time): #1,804,921 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11631357 Display device for musical instrument and display switching method of display device for musical instrument Takaaki Makino, Koichi Matsuno, Takashi Handa, Haruo Okuyama, Yosuke Harada 2023-04-18
7700860 Keyboard instrument and fallboard structure thereof 2010-04-20