Inventor
KATSUMATA NAOTO
JP6 patents
⚠️ This page may combine multiple inventors who share the name “KATSUMATA NAOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
5 patentsUS5709090AJan 20, 1998
Refrigerating system and operating method thereof
HITACHI LTD33 citations92
US5360060ANov 1, 1994
Fin-tube type heat exchanger
HITACHI LTD45 citations92
US5410887AMay 2, 1995
Apparatus for detecting composition of refrigerant and method therefor
HITACHI LTD41 citations91
US4411140AOct 25, 1983
Absorption type cooling and heating system
HITACHI LTD24 citations79
US6101837AAug 15, 2000
Ice thermal storage type air-conditioner and ice thermal storage tank
HITACHI LTD9 citations72