Inventor · disambiguated record
Izumi Ochiai
Also filed as: OCHIAI IZUMI
16 granted patents·433 citations·filing 1977–1988
95Inventor score
Files withHITACHI LTD16
Top patents by PatentIndex Score
16 records- 0190US4331280AMethod of jointing pipes by friction weldingHITACHI LTD·Filed 1980·Granted May 25, 1982·59 cites·7 claims
- 0288US4331286AMethod for pressure bonding metal members by utilizing eutectic reactionHITACHI LTD·Filed 1979·Granted May 25, 1982·38 cites·20 claims
- 0386US4351178AApparatus for bending a straight tube into a serpentine tubeHITACHI LTD·Filed 1981·Granted Sep 28, 1982·43 cites·1 claims
- 0485US4506423AMethod of producing a fluid pressure reducing deviceHITACHI LTD·Filed 1983·Granted Mar 26, 1985·52 cites·15 claims
- 0581US4860021AParabolic antennaHITACHI LTD·Filed 1986·Granted Aug 22, 1989·49 cites·12 claims
- 0680US4746827ARotor for electric motorHITACHI LTD·Filed 1987·Granted May 24, 1988·47 cites·5 claims
- 0768US4748837AMethod of forming spherical shellsHITACHI LTD·Filed 1986·Granted Jun 7, 1988·28 cites·2 claims
- 0868US4698904AApparatus for assembling fins and tubes for heat exchangersHITACHI LTD·Filed 1986·Granted Oct 13, 1987·21 cites·3 claims
- 0968US4597171ATube-enlarging press for use in heat exchanger fabricationHITACHI LTD·Filed 1984·Granted Jul 1, 1986·22 cites·2 claims
- 1056US4593756AFin-and-tube type heat exchangerHITACHI LTD·Filed 1985·Granted Jun 10, 1986·19 cites·2 claims
- 1150US4916459AParabolic antenna dishHITACHI LTD·Filed 1987·Granted Apr 10, 1990·15 cites·1 claims
- 1247US4689637AParabola antenna having increased mechanical strengthHITACHI LTD·Filed 1985·Granted Aug 25, 1987·12 cites·2 claims
- 1347US4142392AInternally groove forming apparatus for heat exchanging pipesHITACHI LTD·Filed 1977·Granted Mar 6, 1979·5 cites·3 claims
- 1446US4898232AHeat exchanger and process for producing the sameHITACHI LTD·Filed 1988·Granted Feb 6, 1990·10 cites·10 claims
- 1541US4583675AMethod of production of a part formed with an openingHITACHI LTD·Filed 1985·Granted Apr 22, 1986·9 cites·3 claims
- 1633US4509354AMethod of manufacturing fan guardHITACHI LTD·Filed 1982·Granted Apr 9, 1985·4 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →