Inventor
SUGIYAMA TATSUYA
JP8 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
4 patentsUS6865898B2Mar 15, 2005
Air conditioning system
HITACHI LTD68 citations94
US5435147AJul 25, 1995
Air conditioning control system
HITACHI LTD70 citations93
US6050328AApr 18, 2000
Heat exchanger and air conditioner using same
HITACHI LTD27 citations92
US6738014B2May 18, 2004
Monitoring center and service system of air conditioner
HITACHI LTD4 citations61
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED
2 patentsUS10190795B2Jan 29, 2019
Air conditioner diagnostic system, air conditioner and mobile communication terminal
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED2 citations71
US10240810B2Mar 26, 2019
Display device and application program
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED0 citations36