Inventor
Izumi Ochiai
Inventor
Tochigi, JP
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B21Dprimary
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material28%
Y10TTechnical subjects covered by former us classification21%
H01QAntennas, i.e. radio aerials10%
B23KSoldering or unsoldering7%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling3%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls3%
B23PMetal-working not otherwise provided for3%
F25BRefrigeration machines, plants or systems3%
PatentTitleYear
4,916,459'Parabolic antenna dish'19904,898,232'Heat exchanger and process for producing the same'19904,860,021'Parabolic antenna'19894,748,837'Method of forming spherical shells'19884,746,827'Rotor for electric motor'19884,698,904'Apparatus for assembling fins and tubes for heat exchangers'19874,689,637'Parabola antenna having increased mechanical strength'19874,597,171'Tube-enlarging press for use in heat exchanger fabrication'19864,593,756'Fin-and-tube type heat exchanger'19864,583,675'Method of production of a part formed with an opening'19864,509,354'Method of manufacturing fan guard'19854,506,423'Method of producing a fluid pressure reducing device'19854,351,178'Apparatus for bending a straight tube into a serpentine tube'19824,331,280'Method of jointing pipes by friction welding'19824,331,286'Method for pressure bonding metal members by utilizing eutectic reaction'19824,142,392'Internally groove forming apparatus for heat exchanging pipes'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1990Patents assigned to HITACHI LTD (16)· patent assignee history
1979–1982Based in Ohiramachi, JP· patent location history
1982–1990Based in Tochigi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 16 | 1979–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tochigi, JP | 13 | 1982–1990 |
| Ohiramachi, JP | 3 | 1979–1982 |