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Inventor

Hikoji Iwasaki

Inventor
Konosu, JP

Overview

6→
Patents
1978–2021
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

G10Kprimary
G10KSound-producing devices43%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material14%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls14%
G08BSignalling systems, e.g. personal calling systems14%
H01HElectric switches14%
PatentTitleYear
11,117,177Spinning forming method20214,742,328'Audio and visual alarm device'19884,692,741'Motor actuated buzzer assembly with a plurality of leaf springs of different frequencies'19874,599,498'Tamper switch'1986RE031152'Alarm buzzer'19834,075,626'Alarm buzzer'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1988Patents assigned to KOBISHI ELECTRIC CO LTD (4)· patent assignee history
1978–1983Based in Tokyo, JP· patent location history
1986–1987Based in Konosu, JP· patent location history
1988Based in Kohnosu, JP· patent location history
2021Patents assigned to KAWASAKI HEAVY IND LTD (1)· patent assignee history
2021Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOBISHI ELECTRIC CO LTD41978–1988
KAWASAKI HEAVY IND LTD12021
Locations
LocationPatentsSpan
Konosu, JP21986–1987
Tokyo, JP21978–1983
Kobe, JP12021
Kohnosu, JP11988