LexDanaLexDanabeta
Inventor

Yukio Akatsu

Inventor
Tokyo, JP

Overview

2→
Patents
1989–1990
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A62Cprimary
A62CFire-fighting100%
PatentTitleYear
D0307647'Automatic fire extinguisher'19904,838,356'Fire extinguisher foam chamber with remote maintenance and testing for oil tanks'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to TOKYO BOSAI SETSUBI COMPANY LI (1)· patent assignee history
1989–1990Based in Tokyo, JP· patent location history
1990Patents assigned to FS MFG CO LTD (1)· patent assignee history
1990Patents assigned to MARUBENI CONSTRUCTION MAT LEASE CO LTD (1)· patent assignee history
1990Patents assigned to TOKYO BOSAI SETSUBI CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FS MFG CO LTD11990
MARUBENI CONSTRUCTION MAT LEASE CO LTD11990
TOKYO BOSAI SETSUBI CO LTD11990
TOKYO BOSAI SETSUBI COMPANY LI11989
Locations
LocationPatentsSpan
Tokyo, JP21989–1990