Inventor
DOI HIROAKI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “DOI HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
4 patentsUS6889516B2May 10, 2005
Cooling system for motor and cooling control method
HITACHI LTD24 citations92
US4528223AJul 9, 1985
Composite fibrous product
HITACHI LTD49 citations92
US6265784B1Jul 24, 2001
Resin sealed semiconductor device having improved arrangement for reducing thermal stress within the device
HITACHI LTD32 citations91
US7230320B2Jun 12, 2007
Electronic circuit device with reduced breaking and cracking
HITACHI LTD0 citations40