Inventor · disambiguated record
Eiichi Shirayanagi
Also filed as: SHIRAYANAGI EIICHI
4 granted patents·25 citations·filing 2003–2004
70Inventor score
Files withYAMAHA CORP4
Top patents by PatentIndex Score
4 records- 0169US6992242B2Keyboard musical instrument equipped with automatic top board spacerYAMAHA CORP·Filed 2003·Granted Jan 31, 2006·16 cites·22 claims
- 0258US7368644B2Top board structure for keyboard instrumentYAMAHA CORP·Filed 2003·Granted May 6, 2008·7 cites·14 claims
- 0345US7140588B2Brace rotating mechanismYAMAHA CORP·Filed 2003·Granted Nov 28, 2006·2 cites·4 claims
- 0441US7267316B2Brace rotating mechanismYAMAHA CORP·Filed 2004·Granted Sep 11, 2007·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →