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Inventor

Yoshikuni Ohshima

Inventor
Hitachi, JP

Overview

6→
Patents
1980–1989
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 6 as inventor

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

C22Cprimary
C22CAlloys20%
F22DPreheating, or accumulating preheated, feed-water for steam generation20%
F28BSteam or vapour condensers20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
F01KSteam engine plants10%
F22BMethods of steam generation10%
PatentTitleYear
RE033006'Feed-water heater comprising low C-Cr-Mo steel components used under wet steam'19894,637,350'System for recovering drain'19874,631,925'Apparatus for deaerating condensate in a condenser'19864,592,419'Condenser'19864,529,454'Low C-Cr-Mo steel used under wet steam'19854,219,077'Multitubular heat exchanger used in a power plant'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1987Patents assigned to HITACHI LTD (5)· patent assignee history
1980–1989Based in Hitachi, JP· patent location history
1985Patents assigned to AKUTSU KOICHI (1)· patent assignee history
1985Patents assigned to ISHIKAWA MASAAKI (1)· patent assignee history
1985Patents assigned to KAWASAKI STEEL CO (1)· patent assignee history
1985Patents assigned to KUSUHARA YUI (1)· patent assignee history
1985Based in Kariya, Aichi-pref., JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD51980–1987
AKUTSU KOICHI11985
ISHIKAWA MASAAKI11985
KAWASAKI STEEL CO11985
KUSUHARA YUI11985
Locations
LocationPatentsSpan
Hitachi, JP51980–1989
Kariya, Aichi-pref., JP11985