Inventor
Kumiko Shimizu
Inventor
Tokyo, JP
Overview
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
| Assignee | Patents | Span |
|---|---|---|
| HITACHI HIGH TECH CORP | 2 | 2021 |
| KAWASAKI HEAVY IND LTD | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2021 |
| Kakogawa, JP | 1 | 1981 |