Assignee
OSAKA OXYGEN IND
JP·24 granted patents·610 citations·filing 1976–2002
Top patents by PatentIndex Score
24 records- 0196US4331455AMethod of producing oxygen rich gas utilizing an oxygen concentrator having good start-up characteristicsOSAKA OXYGEN IND·Filed 1980·Granted May 25, 1982·105 cites·2 claims
- 0288US4781735AEnrichment in oxygen gasOSAKA OXYGEN IND·Filed 1987·Granted Nov 1, 1988·95 cites·6 claims
- 0385US4307067AProcess for deodorizing exhaust gas containing smelly componentsOSAKA OXYGEN IND·Filed 1979·Granted Dec 22, 1981·52 cites·13 claims
- 0482US4519813AProcess for extraction of highly purified oxygenOSAKA OXYGEN IND·Filed 1979·Granted May 28, 1985·50 cites·8 claims
- 0582US4259299AProcess for removing ozone from an ozone-containing gasOSAKA OXYGEN IND·Filed 1979·Granted Mar 31, 1981·36 cites·6 claims
- 0677US4154364AThermally insulating containers for liquefied gasesOSAKA OXYGEN IND·Filed 1976·Granted May 15, 1979·30 cites·8 claims
- 0770US4732577AProcess for separating carbon monoxide having substantially constant purityOSAKA OXYGEN IND·Filed 1987·Granted Mar 22, 1988·38 cites·7 claims
- 0860US5597109AWelding method for forming chromium oxide passivated film at welded portion, welding apparatus, and process apparatusOSAKA OXYGEN IND·Filed 1994·Granted Jan 28, 1997·21 cites·18 claims
- 0960US4468238AProcess for removing a nitrogen gas from mixture comprising N2 and CO or N2 ' CO2 and COOSAKA OXYGEN IND·Filed 1983·Granted Aug 28, 1984·23 cites·12 claims
- 1058US5407492AProcess for forming passivated filmOSAKA OXYGEN IND·Filed 1992·Granted Apr 18, 1995·20 cites·4 claims
- 1152US5971609AMethod of measuring the dew point or frost point of a gas having low water contentOSAKA OXYGEN IND·Filed 1995·Granted Oct 26, 1999·17 cites·9 claims
- 1252US5470154AMethod of cleaning the reflector mirror in an optical dew point meter and an optical dew point meter equipped with a cleaning deviceOSAKA OXYGEN IND·Filed 1994·Granted Nov 28, 1995·20 cites·6 claims
- 1350US4960568AOxygen analyzerOSAKA OXYGEN IND·Filed 1988·Granted Oct 2, 1990·16 cites·3 claims
- 1450US4830727AComposite probe for measuring the concentration of an impurity element in molten ironOSAKA OXYGEN IND·Filed 1988·Granted May 16, 1989·14 cites·1 claims
- 1548US5385611AApparatus for forming resin coating on surface of article having three-dimensional structureOSAKA OXYGEN IND·Filed 1993·Granted Jan 31, 1995·15 cites·6 claims
- 1647US7025870B2Method for analyzing the oxygen concentration of a gasOSAKA OXYGEN IND·Filed 2002·Granted Apr 11, 2006·3 cites·8 claims
- 1747US5615954AApparatus for measuring the dew point or frost point of a gas having low water contentOSAKA OXYGEN IND·Filed 1994·Granted Apr 1, 1997·12 cites·2 claims
- 1846US5482371AMethod and apparatus for measuring the dew point and/or frost point of a gas having low water contentOSAKA OXYGEN IND·Filed 1994·Granted Jan 9, 1996·11 cites·8 claims
- 1944US5295668AMetal tube oxidation treatment apparatusOSAKA OXYGEN IND·Filed 1990·Granted Mar 22, 1994·11 cites·10 claims
- 2033US4215008ARare earth-containing alloys and method for purification of hydrogen gas therewithOSAKA OXYGEN IND·Filed 1978·Granted Jul 29, 1980·5 cites·1 claims
- 2130US5295621AMethod of soldering using a special atmospheric gasOSAKA OXYGEN IND·Filed 1992·Granted Mar 22, 1994·7 cites·3 claims
- 2225US6165275AAtmospheric gas generator for heat treatmentOSAKA OXYGEN IND·Filed 1998·Granted Dec 26, 2000·7 cites·6 claims
- 2325US6024922AMethod of controlling an oxygen analyzer of the Hersch galvanic typeOSAKA OXYGEN IND·Filed 1994·Granted Feb 15, 2000·0 cites·7 claims
- 2425US5827949AMethod and system for measuring external leakageOSAKA OXYGEN IND·Filed 1995·Granted Oct 27, 1998·2 cites·14 claims
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