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Inventor

Chika Iri

Inventor
Tokyo, JP

Overview

4→
Patents
1998–2013
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E04Bprimary
E04BGeneral building constructions80%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
8,397,445'Joint connection in which a beam end or column base of a structure, or a peripheral members rigidly joined to the beam end or column base, are joined to another structure via supporting means'20137,637,069'Steel frame building and joint structure of column and beam'20096,073,401'Building unit, unit building and method of constructing the same'20005,755,063'Unit buildings and their construction process'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2000Patents assigned to SEIKISUI CHEMICAL CO LTD (2)· patent assignee history
1998Based in Ibaraki, JP· patent location history
2000–2013Based in Tokyo, JP· patent location history
2009–2013Patents assigned to SEKISUI CHEMICAL CO LTD (2)· patent assignee history
2009Based in Chiyoda-ku, JP· patent location history
2013Patents assigned to IRI CHIKA (1)· patent assignee history
2013Patents assigned to OHNISHI KATSUNORI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKISUI CHEMICAL CO LTD21998–2000
SEKISUI CHEMICAL CO LTD22009–2013
IRI CHIKAself12013
OHNISHI KATSUNORI12013
Locations
LocationPatentsSpan
Tokyo, JP22000–2013
Chiyoda-ku, JP12009
Ibaraki, JP11998