Assignee
RENGO CO LTD
US·77 granted patents·4 pending applications·1,668 citations·filing 1973–2022
Top patents by PatentIndex Score
81 records- 0197US5709870AAntimicrobial agentRENGO CO LTD·Filed 1995·Granted Jan 20, 1998·209 cites·9 claims
- 0297US4481053AMethod and apparatus for splicing webRENGO CO LTD·Filed 1982·Granted Nov 6, 1984·68 cites·12 claims
- 0395US4224847ATool positioning apparatusRENGO CO LTD·Filed 1978·Granted Sep 30, 1980·68 cites·10 claims
- 0493US4369905AMethod and apparatus for guiding a corrugated fibreboard webRENGO CO LTD·Filed 1980·Granted Jan 25, 1983·40 cites·10 claims
- 0591US4684360ATool positioning deviceRENGO CO LTD·Filed 1986·Granted Aug 4, 1987·63 cites·13 claims
- 0690US4177102ASingle facer for manufacturing single-faced corrugated boardRENGO CO LTD·Filed 1978·Granted Dec 4, 1979·46 cites·12 claims
- 0789US4541335AWeb printing apparatus with printing plate cylinder and web speed controlRENGO CO LTD·Filed 1984·Granted Sep 17, 1985·29 cites·2 claims
- 0888US3974921ABoard piling apparatusRENGO CO LTD·Filed 1975·Granted Aug 17, 1976·36 cites·3 claims
- 0986US5981052AInorganic porous crystals-hydrophilic macromolecule compositeRENGO CO LTD·Filed 1997·Granted Nov 9, 1999·75 cites·13 claims
- 1086US4249847AApparatus for transporting boardsRENGO CO LTD·Filed 1978·Granted Feb 10, 1981·27 cites·15 claims
- 1185US5050852ABlank feeder and method for controlling the sameRENGO CO LTD·Filed 1990·Granted Sep 24, 1991·39 cites·3 claims
- 1284US9994355B2Packing box and box manufacturing apparatusRENGO CO LTD·Filed 2014·Granted Jun 12, 2018·9 cites·15 claims
- 1384US4508279ASurface winderRENGO CO LTD·Filed 1983·Granted Apr 2, 1985·30 cites·9 claims
- 1484US4103786ABoard piling-up apparatusRENGO CO LTD·Filed 1976·Granted Aug 1, 1978·26 cites·15 claims
- 1582US3948715AAuto-detecting means for detecting drawnout termination end of old paper roll and beginning end of new paper roll in paper splicing apparatusRENGO CO LTD·Filed 1973·Granted Apr 6, 1976·24 cites·5 claims
- 1681US4658723AColor printing machineRENGO CO LTD·Filed 1986·Granted Apr 21, 1987·21 cites·1 claims
- 1780US10662257B2Cellulose xanthate nanofiberRENGO CO LTD·Filed 2016·Granted May 26, 2020·1 cites·10 claims
- 1880US4577746AControl system for blank presserRENGO CO LTD·Filed 1985·Granted Mar 25, 1986·24 cites·2 claims
- 1980US4020406AWeb cutting control systemRENGO CO LTD·Filed 1975·Granted Apr 26, 1977·34 cites·1 claims
- 2079US5962005ATransparent cellulose hydrogel and production process thereofRENGO CO LTD·Filed 1998·Granted Oct 5, 1999·47 cites·6 claims
- 2179US4042234ABlank feeding machineRENGO CO LTD·Filed 1976·Granted Aug 16, 1977·21 cites·8 claims
- 2277US7910209B2Cellulose granules for carrying functional substancesRENGO CO LTD·Filed 2007·Granted Mar 22, 2011·10 cites·8 claims
- 2377US4592278APrinting apparatusRENGO CO LTD·Filed 1984·Granted Jun 3, 1986·18 cites·3 claims
- 2477US4586673AApparatus for automatically mounting a web roll on a mill roll standRENGO CO LTD·Filed 1984·Granted May 6, 1986·19 cites·1 claims
- 2576US4586434ADevice for replacing plate cylindersRENGO CO LTD·Filed 1985·Granted May 6, 1986·19 cites·4 claims
- 2675US5928661AControlled release composition containing volatile compoundRENGO CO LTD·Filed 1997·Granted Jul 27, 1999·24 cites·12 claims
- 2775US4425695ARolls for use in corrugated fibreboard production systemRENGO CO LTD·Filed 1981·Granted Jan 17, 1984·26 cites·13 claims
- 2873US4169752AProcess and apparatus for splicing webRENGO CO LTD·Filed 1977·Granted Oct 2, 1979·17 cites·8 claims
- 2973US4096941AConveyor system for a cutter for a web of corrugated fiberboardRENGO CO LTD·Filed 1976·Granted Jun 27, 1978·17 cites·3 claims
- 3073US3974490APaper roll diameter sensing device for use with paper splicing apparatusRENGO CO LTD·Filed 1974·Granted Aug 10, 1976·14 cites·6 claims
- 3172US6372333B1Composition containing inorganic porous crystals-hydrophilic macromolecule composite and product made therefromRENGO CO LTD·Filed 1999·Granted Apr 16, 2002·95 cites·14 claims
- 3271US6225461B1Cellulose microspheres and method of manufacturing the sameRENGO CO LTD·Filed 1998·Granted May 1, 2001·34 cites·4 claims
- 3369US10597184B2Method and device for assembling height-adjustable boxRENGO CO LTD·Filed 2017·Granted Mar 24, 2020·1 cites·1 claims
- 3469US4600841AApparatus for detecting marks on a running webRENGO CO LTD·Filed 1983·Granted Jul 15, 1986·21 cites·8 claims
- 3568US5489399ACarbon dioxide gas generating compositionsRENGO CO LTD·Filed 1994·Granted Feb 6, 1996·30 cites·4 claims
- 3668US4548109AApparatus for positioning toolsRENGO CO LTD·Filed 1983·Granted Oct 22, 1985·19 cites·2 claims
- 3768US4392910AWeb aligning process and apparatusRENGO CO LTD·Filed 1981·Granted Jul 12, 1983·36 cites·5 claims
- 3867US4232859ABlank feeding apparatusRENGO CO LTD·Filed 1979·Granted Nov 11, 1980·14 cites·1 claims
- 3966US4466320ARotary die cutterRENGO CO LTD·Filed 1982·Granted Aug 21, 1984·14 cites·3 claims
- 4066US4328727ASlitter-scorer apparatusRENGO CO LTD·Filed 1980·Granted May 11, 1982·15 cites·14 claims
- 4164US9938039B2Box for packing and exhibiting product, and packing device thereforRENGO CO LTD·Filed 2014·Granted Apr 10, 2018·2 cites·10 claims
- 4264US8383526B2Sheet for total heat exchangerRENGO CO LTD·Filed 2007·Granted Feb 26, 2013·2 cites·4 claims
- 4362US4737846ADevice for detecting defects in single faced corrugated fiberboardsRENGO CO LTD·Filed 1987·Granted Apr 12, 1988·22 cites·6 claims
- 4462US4319947ASingle facer with automatic roll gap control systemRENGO CO LTD·Filed 1980·Granted Mar 16, 1982·17 cites·3 claims
- 4562US4091167AMethod for preparing paper board having improved wet compression strengthRENGO CO LTD·Filed 1976·Granted May 23, 1978·17 cites·7 claims
- 4661US7021526B2Packaging caseRENGO CO LTD·Filed 2003·Granted Apr 4, 2006·11 cites·13 claims
- 4761US4682743AApparatus for automatically mounting a web roll on a mill roll standRENGO CO LTD·Filed 1986·Granted Jul 28, 1987·11 cites·1 claims
- 4861US4453436ADie cutter and process for die cuttingRENGO CO LTD·Filed 1981·Granted Jun 12, 1984·17 cites·2 claims
- 4960US4420998ADie cutter and die-cutting processRENGO CO LTD·Filed 1982·Granted Dec 20, 1983·15 cites·4 claims
- 5059US11149134B2Resin composition containing cellulose xanthate fine fibersRENGO CO LTD·Filed 2018·Granted Oct 19, 2021·0 cites·19 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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