Inventor

SUNAGA TSUTOMU

JP3 patents

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

HITACHI LTD

2 patents

US5600807AFeb 4, 1997

Programmable controller capable of updating a user program during operation by switching between user program memories

HITACHI LTD19 citations82

US5699080ADec 16, 1997

Programming method and apparatus for programmable controller

HITACHI LTD12 citations70

CALSONIC CORP

1 patent

US5560425AOct 1, 1996

Multi-flow type heat exchanger

CALSONIC CORP59 citations90