Inventor

Sanpei Usui

Inventor
Ibaraki, JP

Overview

1→
Patents
1985
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 1 as inventor

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

F22Bprimary
F22BMethods of steam generation50%
F25BRefrigeration machines, plants or systems50%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to HITACHI LTD (1)· patent assignee history
1985Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11985
Locations
LocationPatentsSpan
Ibaraki, JP11985