Inventor
HAGINO KOICHI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “HAGINO KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
4 patentsUS7646179B2Jan 12, 2010
Electric power supply circuit and electronic device
RICOH KK10 citations79
US7564196B2Jul 21, 2009
Power supply device, and LED device and electronic device using same
RICOH KK10 citations79
US7663406B2Feb 16, 2010
Output circuit
RICOH KK4 citations58
US7619400B2Nov 17, 2009
Compact voltage step-up/step-down switching regulator
RICOH KK2 citations58