Masayuki Yasumura

SO Sony: 4 patents #79 of 2,293Top 4%

Overall (2003): #14,301 of 273,478Top 6%

Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6590787	Wide range zero voltage switching resonance type converter	—	2003-07-08
6587358	Switching power supply circuit	—	2003-07-01
6577510	Switching power supply	—	2003-06-10
6515875	Switching power supply circuit	—	2003-02-04