Inventor

Kumiko Shimizu

Inventor
Tokyo, JP

Overview

3→
Patents
1981–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps40%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry20%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general20%
Y10TTechnical subjects covered by former us classification20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to KAWASAKI HEAVY IND LTD (1)· patent assignee history
1981Based in Kakogawa, JP· patent location history
2021Patents assigned to HITACHI HIGH TECH CORP (2)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI HIGH TECH CORP22021
KAWASAKI HEAVY IND LTD11981
Locations
LocationPatentsSpan
Tokyo, JP22021
Kakogawa, JP11981