SS

Shigeaki Sato

Yamaha: 2 patents #23 of 215Top 15%
Overall (2005): #34,965 of 245,428Top 15%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6933435 Easily installable optical position transducer and keyboard musical instrument having the same Tadaharu Kato, Shigeru Muramatsu 2005-08-23
6846982 Key depression detection apparatus for keyboard instrument 2005-01-25