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Inventor

Tsutomu Konno

Inventor
Tokyo, JP

Overview

2→
Patents
1980–2021
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.

C10Cprimary
C10CWorking-up pitch, asphalt, bitumen, tar25%
C10GCracking hydrocarbon oils25%
G06FElectric digital data processing25%
H04LTransmission of digital information, e.g. telegraphic communication25%
PatentTitleYear
11,063,873Data collection server and data collection method20214,242,196'Mass production system of highly aromatic petroleum pitch'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to KUREHA CHEMICAL IND CO LTD (1)· patent assignee history
1980Patents assigned to SUMIKIN COKE CO LTD (1)· patent assignee history
1980Patents assigned to SUMITOMO METAL IND (1)· patent assignee history
1980–2021Based in Tokyo, JP· patent location history
2021Patents assigned to HITACHI LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD12021
KUREHA CHEMICAL IND CO LTD11980
SUMIKIN COKE CO LTD11980
SUMITOMO METAL IND11980
Locations
LocationPatentsSpan
Tokyo, JP21980–2021