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Inventor

Michio Itoh

Inventor
Tokyo, JP

Overview

13→
Patents
1985–2018
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 13 as inventor

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

E04Bprimary
E04BGeneral building constructions16%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients13%
E04HBuildings or like structures for particular purposes13%
Y10TTechnical subjects covered by former us classification13%
C08JWorking-up6%
E02DFoundations6%
E04CStructural elements6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B23KSoldering or unsoldering3%
B60CVehicle tyres3%
PatentTitleYear
10,000,919Connection structure of column and beam and method for connecting column and beam20189,476,218'Column base fitting and column base structure using it'20169,394,679'Connection structure of beam and column, and connection member'20169,353,544'Column base fitting and column base structure using it'20166,627,169'Silicon carbide powder and production method thereof'20035,505,033'Column base structure and connection arrangement'19965,082,166'Connector beam joining method'19925,063,719'Column base structure'19914,933,385'Rubber composition'19904,905,436'Column/beam joint structure'19904,871,794'Pneumatic tires'19894,818,601'Rubber-cord composite bodies'19894,545,416'Radial tires'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to BRIDGESTONE TIRE CO LTD (1)· patent assignee history
1989–2003Patents assigned to BRIDGESTONE CORP (4)· patent assignee history
1989Based in Kodaira, JP· patent location history
1990–1996Patents assigned to HITACHI METALS LTD (4)· patent assignee history
1990–2016Based in Tokyo, JP· patent location history
1990–1996Based in Kitakyushu, JP· patent location history
2003Based in Hachioji, JP· patent location history
2016–2018Patents assigned to SENQCIA CORP (3)· patent assignee history
2016Patents assigned to HITACHI METALS TECHNO LTD (2)· patent assignee history
2018Based in Kashiwa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRIDGESTONE CORP41989–2003
HITACHI METALS LTD41990–1996
SENQCIA CORP32016–2018
HITACHI METALS TECHNO LTD22016
BRIDGESTONE TIRE CO LTD11985
Locations
LocationPatentsSpan
Tokyo, JP41990–2016
Kitakyushu, JP41990–1996
Kodaira, JP21989
Kashiwa, JP12018
Hachioji, JP12003