Assignee
OBARA CORP
JP·46 granted patents·2 pending applications·579 citations·filing 1983–2024
Top patents by PatentIndex Score
48 records- 0196US6603228B1Driving unit of a welding equipmentOBARA CORP·Filed 2000·Granted Aug 5, 2003·62 cites·9 claims
- 0294US6223971B1Driving unit of a welding equipmentOBARA CORP·Filed 2000·Granted May 1, 2001·72 cites·20 claims
- 0381US4917619ATool changer for welding robotOBARA CORP·Filed 1988·Granted Apr 17, 1990·34 cites·11 claims
- 0477US5528011AControl system of a C-type welding gunOBARA CORP·Filed 1994·Granted Jun 18, 1996·43 cites·8 claims
- 0573US4733042AWelding control apparatus including a pressure regulating valve operated in accord with predetermined schedule of variations of a welding force control variableOBARA CORP·Filed 1987·Granted Mar 22, 1988·27 cites·11 claims
- 0672US5436422AResistance welding control methodOBARA CORP·Filed 1994·Granted Jul 25, 1995·29 cites·7 claims
- 0771US6718837B2Driving unit for pressure application shaft in a welding apparatusOBARA CORP·Filed 2003·Granted Apr 13, 2004·12 cites·16 claims
- 0870US4739149ACurrent sensor for welder conductorOBARA CORP·Filed 1987·Granted Apr 19, 1988·23 cites·4 claims
- 0967US7383976B2Friction stir spot joining deviceOBARA CORP·Filed 2005·Granted Jun 10, 2008·2 cites·4 claims
- 1067US4762446ACutter of tip dresser for welding apparatusOBARA CORP·Filed 1986·Granted Aug 9, 1988·21 cites·4 claims
- 1166US11203081B2Removal device of welding electrode tipOBARA CORP·Filed 2019·Granted Dec 21, 2021·2 cites·2 claims
- 1265US12311460B2Replacing and holding device for electrode tipOBARA CORP·Filed 2022·Granted May 27, 2025·0 cites·14 claims
- 1365US7422140B2Friction stir spot joining deviceOBARA CORP·Filed 2005·Granted Sep 9, 2008·1 cites·4 claims
- 1465US5072090AInverter type resistance welding machineOBARA CORP·Filed 1990·Granted Dec 10, 1991·23 cites·10 claims
- 1565US2023390856A1Welding gunOBARA CORP·Filed 2023·Application pending·0 cites
- 1664US7322509B2Friction stir spot joining deviceOBARA CORP·Filed 2005·Granted Jan 29, 2008·4 cites·8 claims
- 1762US2024359253A1One-sided spot welder and one-sided spot-welding methodOBARA CORP·Filed 2024·Application pending·0 cites
- 1858US5628923ARobot welding gun unitOBARA CORP·Filed 1995·Granted May 13, 1997·23 cites·9 claims
- 1956US5010228ATool changer for welding robotOBARA CORP·Filed 1988·Granted Apr 23, 1991·18 cites·5 claims
- 2055US7105767B2Fixed type electrode tip removal deviceOBARA CORP·Filed 2004·Granted Sep 12, 2006·7 cites·3 claims
- 2154US5914056AMethod of controlling a pressure application resistant welding machineOBARA CORP·Filed 1997·Granted Jun 22, 1999·19 cites·3 claims
- 2252US4999477AResistance measuring mechanism in a resistance welding machineOBARA CORP·Filed 1990·Granted Mar 12, 1991·15 cites·4 claims
- 2351US7105768B2Fixed type electrode tip take-out deviceOBARA CORP·Filed 2004·Granted Sep 12, 2006·5 cites·4 claims
- 2449US5036175AWelding gun having equalizing functionOBARA CORP·Filed 1990·Granted Jul 30, 1991·13 cites·5 claims
- 2548US4727775ADressing device for tip of welding gunOBARA CORP·Filed 1986·Granted Mar 1, 1988·10 cites·3 claims
- 2645US4750101ATransformer apparatus with rectifierOBARA CORP·Filed 1987·Granted Jun 7, 1988·7 cites·3 claims
- 2743US6813538B2Welding systemOBARA CORP·Filed 2002·Granted Nov 2, 2004·1 cites·13 claims
- 2843US4879447APiston actuated welding gun with pivoting armOBARA CORP·Filed 1988·Granted Nov 7, 1989·8 cites·10 claims
- 2943US4577090APrimary cable apparatus for robot welding gunOBARA CORP·Filed 1983·Granted Mar 18, 1986·6 cites·4 claims
- 3041US5091623AWelding gun provided with a backup cylinderOBARA CORP·Filed 1990·Granted Feb 25, 1992·8 cites·3 claims
- 3140US5157234AC-type welding gun robot holding apparatusOBARA CORP·Filed 1991·Granted Oct 20, 1992·8 cites·2 claims
- 3240US5153405ACooling water piping system for welding robot gunOBARA CORP·Filed 1991·Granted Oct 6, 1992·8 cites·1 claims
- 3340US5113053AWelding gun for robotOBARA CORP·Filed 1991·Granted May 12, 1992·8 cites·9 claims
- 3439US5198633AStopper device in a welding robot gunOBARA CORP·Filed 1991·Granted Mar 30, 1993·8 cites·2 claims
- 3539US4855532AWelding cableOBARA CORP·Filed 1988·Granted Aug 8, 1989·8 cites·4 claims
- 3636US5333975AMethod of and apparatus for dressing tips for welding machinesOBARA CORP·Filed 1992·Granted Aug 2, 1994·6 cites·8 claims
- 3735US5026963AC-type welding gunOBARA CORP·Filed 1990·Granted Jun 25, 1991·6 cites·6 claims
- 3834US6959228B2Method of protecting data stored in a memory of welding controllerOBARA CORP·Filed 2002·Granted Oct 25, 2005·0 cites·6 claims
- 3934US5173066AChip holder fixing deviceOBARA CORP·Filed 1991·Granted Dec 22, 1992·4 cites·2 claims
- 4034US5138129AWelding transformer in a welding gun for robotOBARA CORP·Filed 1991·Granted Aug 11, 1992·5 cites·2 claims
- 4133US5122634AWelding transformer control apparatusOBARA CORP·Filed 1990·Granted Jun 16, 1992·4 cites·8 claims
- 4232US6252193B1X type electric welding machineOBARA CORP·Filed 1999·Granted Jun 26, 2001·4 cites·8 claims
- 4332US5111018AConnection member in a welding gun for robotOBARA CORP·Filed 1991·Granted May 5, 1992·4 cites·8 claims
- 4431US5164564AWelding robot gun connecting deviceOBARA CORP·Filed 1991·Granted Nov 17, 1992·3 cites·4 claims
- 4530US4673793AConnecting metal fittings for resistance welderOBARA CORP·Filed 1985·Granted Jun 16, 1987·0 cites·2 claims
- 4629US5981898AMethod of controlling electrode pressure application force in an electric gunOBARA CORP·Filed 1997·Granted Nov 9, 1999·4 cites·7 claims
- 4722US4868348AWelding cableOBARA CORP·Filed 1988·Granted Sep 19, 1989·2 cites·2 claims
- 4818US5084605AWelding torch having improved gas jetting capabilityOBARA CORP·Filed 1990·Granted Jan 28, 1992·2 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →