Inventor

Fumitaka Abukawa

Inventor

Tokyo, JP

Overview

1990–2009

Patent span

Chemistry

Primary field (CPC C)

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

C23Cprimary

C23CCoating metallic material35%

C21DModifying the physical structure of ferrous metals15%

F27BFurnaces, kilns, ovens or retorts in general15%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace15%

G01NInvestigating or analysing materials by determining their chemical or physical properties10%

F27MIndexing scheme relating to aspects of the charges or furnaces, kilns, ovens or retorts5%

Y02PClimate change mitigation technologies in the production or processing of goods5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to MITSUBISHI MOTORS CORP (1)· patent assignee history

1990Patents assigned to TOKYO HEAT TREATING (1)· patent assignee history

1990–1998Based in Yokohama, JP· patent location history

1998–2009Patents assigned to DOWA MINING CO (6)· patent assignee history

1998–2009Based in Tokyo, JP· patent location history

2007Patents assigned to DOWA THERMOTECH CO LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Tokyo, JP	6	1998–2009
Yokohama, JP	2	1990–1998