Inventor

Takeo Itoh

Inventor

Tokyo, JP

Overview

1983–2020

Patent span

Performing operations

Primary field (CPC B)

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

B21Bprimary

B21BRolling of metal12%

B41JTypewriters8%

C21DModifying the physical structure of ferrous metals8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Y10TTechnical subjects covered by former us classification8%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling4%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

C22CAlloys4%

C23CCoating metallic material4%

F16FSprings4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to BROTHER IND LTD (2)· patent assignee history

1983Based in Nagoya, JP· patent location history

1984Based in Sagamihara, JP· patent location history

1987–2000Based in Yokohama, JP· patent location history

2013–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (5)· patent assignee history

2013–2015Patents assigned to ITOH TAKEO (2)· patent assignee history

2013Patents assigned to HONDA KAZUHIKO (1)· patent assignee history

2013Based in Chiba, JP· patent location history

2015Patents assigned to AKASHI TOORU (1)· patent assignee history

2015–2020Based in Tokyo, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL & SUMITOMO METAL CORP	5	2013–2020
BROTHER IND LTD	2	1983
ITOH TAKEOself	2	2013–2015
AKASHI TOORU	1	2015
HONDA KAZUHIKO	1	2013

Locations