Inventor

TAKAI TADASHI

JP5 patents

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

HITACHI LTD

1 patent

US6647317B2Nov 11, 2003

Air conditioner management system

HITACHI LTD89 citations97

(unassigned)

1 patent

US6643611B1Nov 4, 2003

Service system for air conditioner and server system for monitoring center

47 citations94

HITACHI LTD TOKYO JAPAN AS TRU

1 patent

US7260451B2Aug 21, 2007

Air conditioner management system and converter unit therefor

HITACHI LTD TOKYO JAPAN AS TRU58 citations93

HITACHI LTD TRUSTEE FOR THE BE

1 patent

US6925420B2Aug 2, 2005

Service system for air conditioner and server system for monitoring center

HITACHI LTD TRUSTEE FOR THE BE5 citations72

HITCHI LTD

1 patent

US6823288B2Nov 23, 2004

Service system for air conditioner and server system for monitoring center

HITCHI LTD5 citations72