TM

Takafumi Maruyama

Mitsubishi Electric: 8 patents #3,714 of 25,717Top 15%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
KC Kumiai Chemical Industry Co.: 1 patents #187 of 284Top 70%
NC Nissin Kogyo Co.: 1 patents #171 of 334Top 55%
HE Hioki E.E.: 1 patents #22 of 50Top 45%
Overall (All Time): #136,566 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5155675 Method of controlling an inverter Masayoshi Kumano 1992-10-13
5060129 Method of controlling three-phase, three-level inverter 1991-10-22
5041927 Magnetic disc driving apparatus having speed and position control 1991-08-20