Masayuki Iwamatsu

Yamaha: 1 patents #26 of 106Top 25%

Overall (1989): #20,859 of 140,708Top 15%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4856064	Sound field control apparatus	—	1989-08-08
4851842	Analog-to-digital conversion circuit	—	1989-07-25