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Inventor

Hiroshi Ohmachi

Inventor
Ibaraki, JP

Overview

2→
Patents
1981–1988
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Dprimary
F04DNon-positive-displacement pumps100%
PatentTitleYear
4,770,602'Method of capacity controlling of multistage compressor and apparatus therefor'19884,288,198'Method of controlling multistage centrifugal compressor equipment'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1988Patents assigned to HITACHI LTD (2)· patent assignee history
1981Based in Shimoinayoshi, JP· patent location history
1988Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD21981–1988
Locations
LocationPatentsSpan
Ibaraki, JP11988
Shimoinayoshi, JP11981