IS

Ichi Sugawara

Yamaha: 1 patents #63 of 215Top 30%
📍 Nanbu, JP: #31 of 126 inventorsTop 25%
Overall (2005): #185,012 of 245,428Top 80%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6972361 Woodwind instrument equipped with pad sealing mechanism automatically adjustable to tone hole Jun Shibamiya, Tsunehiko Fuse, Keisuke Tanaka 2005-12-06