Masayuki Hirai

NI Nifco: 1 patents #9 of 31Top 30%

SO Sony: 1 patents #749 of 2,293Top 35%

📍 Shinagawa, JP: #15 of 67 inventorsTop 25%

Overall (2003): #166,645 of 273,478Top 65%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6666615	Spacer and parts attachment device	Satoshi Mukouyama, Kiyoshi Onuma, Jun Zhang, Minoru Araki	2003-12-23