NM

Naoki Maru

HI Hitachi: 9 patents #4,653 of 28,497Top 20%
DK Densei Lambda K.K.: 1 patents #8 of 14Top 60%
HC Hitachi Information Technology Co.: 1 patents #20 of 121Top 20%
Overall (All Time): #573,967 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8928363 Semiconductor drive circuit and power conversion apparatus using same Ayumu Hatanaka, Kaoru Kato, Katsumi Ishikawa 2015-01-06
7911769 Electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus Hideho Yamamura, Kazunori Nakajima, Koji Nisisu, Shigeo Oomae 2011-03-22
7548411 Electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus Hideho Yamamura, Kazunori Nakajima, Koji Nisisu, Shigeo Oomae 2009-06-16
7372683 Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit Hideho Yamamura 2008-05-13
7355829 Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuit Hideho Yamamura, Satoshi Tomioka, Motoharu Ueguri 2008-04-08
7208883 Current detection circuit, and power supply apparatus, power supply system and electronic apparatus using the current detection circuit Hideho Yamamura, Koji Nisisu, Shigeo Oomae 2007-04-24
6894882 D.C. power supply circuit and electronic apparatus using such circuits Akihiro Sakurai, Hiroshi Kamee 2005-05-17
6628010 Parallel power system and an electronic apparatus using the power system Hideho Yamamura, Mamoru Ogihara 2003-09-30
5844762 Electronic circuit device having a function of inhibiting resonance in power wiring Hideho Yamamura, Masakazu Yamamoto, Satoshi Muraoka 1998-12-01