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Inventor

Eiji Matsushita

Inventor
Fujisawa, JP

Overview

5→
Patents
1976–1993
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 5 as inventor

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

E04Bprimary
E04BGeneral building constructions33%
G08BSignalling systems, e.g. personal calling systems22%
Y10TTechnical subjects covered by former us classification22%
E04HBuildings or like structures for particular purposes11%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges11%
PatentTitleYear
5,189,851'Movable dome-type roof for structure'19934,884,222'Fire alarm system'19894,803,469'Fire alarm system'19894,014,089'Method of connecting beams and columns of steel frame construction'19773,938,297'Fittings for connecting columns and beams of steel frame construction'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to KAJIMA CORP (3)· patent assignee history
1976–1977Based in Fujisawa, JP· patent location history
1989Patents assigned to HOCHIKI CO (1)· patent assignee history
1989Patents assigned to KITAJIMA AKIRA (1)· patent assignee history
1989Patents assigned to MATSUSHITA EIJI (1)· patent assignee history
1989Patents assigned to NAGASHIMA TETSUYA (1)· patent assignee history
1989Based in Yokohama, JP· patent location history
1989Based in Yamato, JP· patent location history
1993Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAJIMA CORP31976–1993
HOCHIKI CO11989
KITAJIMA AKIRA11989
MATSUSHITA EIJIself11989
NAGASHIMA TETSUYA11989
Locations
LocationPatentsSpan
Fujisawa, JP21976–1977
Tokyo, JP11993
Yokohama, JP11989
Yamato, JP11989