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Inventor

Tatsuo Sumi

Inventor
Tokyo, JP

Overview

2→
Patents
1989–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 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%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G01TMeasurement of nuclear or x-radiation20%
H01BCables20%
PatentTitleYear
10,920,306Aluminum alloy wire rod and producing method thereof20214,841,443'Method of and apparatus for automatically reading 5 band arrayal pattern'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to HITACHI LTD (1)· patent assignee history
1989Patents assigned to HITACHI SOFTWARE ENG (1)· patent assignee history
1989Based in Yokohama, JP· patent location history
2021Patents assigned to HITACHI METALS LTD (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11989
HITACHI METALS LTD12021
HITACHI SOFTWARE ENG11989
Locations
LocationPatentsSpan
Tokyo, JP12021
Yokohama, JP11989