Inventor

NAGAHARA KOHTAROH

JP2 patents

⚠️ This page may combine multiple inventors who share the name “NAGAHARA KOHTAROH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI SHINDO KK

1 patent

US5704424AJan 6, 1998

Heat transfer tube having grooved inner surface and production method therefor

MITSUBISHI SHINDO KK43 citations85

JAPAN STEEL WORKS LTD

1 patent

US6662860B2Dec 16, 2003

Heat transfer pipe for liquid medium having grooved inner surface and heat exchanger employing the same

JAPAN STEEL WORKS LTD11 citations70