Inventor
Fumio Harada
Inventor
Shimizu, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
F04BPositive-displacement machines for liquids20%
F25BRefrigeration machines, plants or systems13%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application13%
C23FNon-mechanical removal of metallic material from surface7%
F24FAir-conditioning7%
Y10TTechnical subjects covered by former us classification7%
PatentTitleYear
5,279,131'Multi-airconditioner'19944,411,600'Hermetic motor compressor'19834,371,319'Hermetic motor compressor'19834,365,667'Heat exchanger'19824,352,642'Hermetic motor-compressor'19824,300,629'Cross-fin tube type heat exchanger'19814,122,688'Refrigerating system'19784,051,001'Process for regenerating etching solution'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1994Patents assigned to HITACHI LTD (8)· patent assignee history
1977Based in Yokohama, JP· patent location history
1978–1994Based in Shimizu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 8 | 1977–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shimizu, JP | 7 | 1978–1994 |
| Yokohama, JP | 1 | 1977 |