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Inventor

Sumihisa Aoki

Inventor
Kokubunji, JP

Overview

3→
Patents
1992–1998
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C22Cprimary
C22CAlloys20%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys20%
H01BCables20%
B21BRolling of metal10%
B21FWorking or processing of metal wire10%
B60MPower supply lines, and devices along rails, for electrically- propelled vehicles10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,705,125'Wire for electric railways'19985,391,243'Method for producing wire for electric railways'19955,087,300'Method for manufacturing high-conductivity copper-clad steel trolley wire'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to FUJIKURA LTD (1)· patent assignee history
1992–1998Based in Kokubunji, JP· patent location history
1995–1998Patents assigned to MITSUBISHI MATERIALS CORP (2)· patent assignee history
1995–1998Patents assigned to RAILWAY TECHNICAL RES INST (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI MATERIALS CORP21995–1998
RAILWAY TECHNICAL RES INST21995–1998
FUJIKURA LTD11992
Locations
LocationPatentsSpan
Kokubunji, JP31992–1998