Inventor
SHUHEI NAGATA
Inventor
JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids21%
H02KDynamo-electric machines21%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids14%
F25BRefrigeration machines, plants or systems14%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%
F01CRotary-piston or oscillating-piston machines or engines7%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g7%
PatentTitleYear
12,313,069Screw compressor202512,135,032Screw compressor having working chamber closing member to regulate suction working medium flow to a working chamber202411,411,522Linear motor system and compressor202211,329,541Linear motor control apparatus and compressor equipped with the same202211,211,858Linear motor and compressor2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (3)· patent assignee history
2021–2022Patents assigned to HITACHI ASTEMO LTD (2)· patent assignee history
2021–2022Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (2)· patent assignee history
2021–2025Based in JP· patent location history
2022Patents assigned to HITACHI LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD | 3 | 2021–2025 |
| HITACHI ASTEMO LTD | 2 | 2021–2022 |
| HITACHI AUTOMOTIVE SYSTEMS LTD | 2 | 2021–2022 |
| HITACHI LTD | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 5 | 2021–2025 |