LexDanaLexDanabeta
Inventor

Hiroaki Nakagawa

Inventor
Tokyo, JP

Overview

5→
Patents
1991–1998
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.

E06Bprimary
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates44%
Y10TTechnical subjects covered by former us classification33%
B28BShaping clay or other ceramic compositions11%
E04BGeneral building constructions11%
PatentTitleYear
5,798,011'Method of making window frame for concrete wall panel'19985,591,286'Method of making window frame for concrete wall panel'19975,575,870'Method of making window frame for concrete wall panel'19965,356,687'Window frame for concrete wall panel'19945,010,705'Curtain wall'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1998Patents assigned to KAJIMA CORP (5)· patent assignee history
1991–1998Based in Tokyo, JP· patent location history
1994–1998Patents assigned to FRC KK (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAJIMA CORP51991–1998
FRC KK41994–1998
Locations
LocationPatentsSpan
Tokyo, JP51991–1998