Assignee
DIAFOIL CO LTD
JP·59 granted patents·1,274 citations·filing 1980–1993
Top patents by PatentIndex Score
59 records- 0194US4756953AUniaxially high-oriented polyethylene naphthalate film for polarizing platesDIAFOIL CO LTD·Filed 1986·Granted Jul 12, 1988·80 cites·13 claims
- 0293US4871784AMinute-cellular polyester filmDIAFOIL CO LTD·Filed 1988·Granted Oct 3, 1989·67 cites·7 claims
- 0389US4814426AShrinkable polyester film for packagingDIAFOIL CO LTD·Filed 1987·Granted Mar 21, 1989·61 cites·15 claims
- 0486US4799772AUniaxially high-oriented polyethylene naphthalate film for liquid crystal panel substratesDIAFOIL CO LTD·Filed 1986·Granted Jan 24, 1989·51 cites·7 claims
- 0583US4895830ASublimation type thermal ink transfer printing materialDIAFOIL CO LTD·Filed 1988·Granted Jan 23, 1990·29 cites·3 claims
- 0683US4320207APolyester film containing fine powder of crosslinked polymerDIAFOIL CO LTD·Filed 1980·Granted Mar 16, 1982·34 cites·2 claims
- 0782US4990400APolyester films, magnetic recording media and film capacitors produced therefromDIAFOIL CO LTD·Filed 1989·Granted Feb 5, 1991·45 cites·23 claims
- 0882US4939232AShrinkable polyester filmDIAFOIL CO LTD·Filed 1989·Granted Jul 3, 1990·43 cites·3 claims
- 0981US4677188ATransparent slippery biaxially stretched polyester filmDIAFOIL CO LTD·Filed 1986·Granted Jun 30, 1987·39 cites·3 claims
- 1080US5070180AShrinkable copolyester filmDIAFOIL CO LTD·Filed 1991·Granted Dec 3, 1991·38 cites·6 claims
- 1180US4985538AShrinkable polyester filmDIAFOIL CO LTD·Filed 1987·Granted Jan 15, 1991·42 cites·13 claims
- 1279US4983653APolyester shrinkable film containing benzotriazoleDIAFOIL CO LTD·Filed 1989·Granted Jan 8, 1991·33 cites·5 claims
- 1378US5096773ABiaxially oriented polyester filmDIAFOIL CO LTD·Filed 1990·Granted Mar 17, 1992·31 cites·8 claims
- 1476US4804736APolyethylene-2,6-naphthalate film for magnetic recording tapesDIAFOIL CO LTD·Filed 1986·Granted Feb 14, 1989·28 cites·15 claims
- 1575US5006589APolyester film for magnetic recording mediaDIAFOIL CO LTD·Filed 1989·Granted Apr 9, 1991·29 cites·6 claims
- 1673US5106681APolyester films, magnetic recording media and film capacitors produced therefromDIAFOIL CO LTD·Filed 1989·Granted Apr 21, 1992·29 cites·10 claims
- 1773US5087526ABiaxially oriented polyester film for use in floppy discDIAFOIL CO LTD·Filed 1990·Granted Feb 11, 1992·23 cites·4 claims
- 1873US4876137APolyethylene naphthalate film for high-density magnetic recording media of floppy diskDIAFOIL CO LTD·Filed 1987·Granted Oct 24, 1989·32 cites·11 claims
- 1972US5164439APolyester film for magnetic recording mediaDIAFOIL CO LTD·Filed 1991·Granted Nov 17, 1992·20 cites·14 claims
- 2071US5071690AMoldable biaxially stretched polyester filmDIAFOIL CO LTD·Filed 1990·Granted Dec 10, 1991·28 cites·4 claims
- 2171US5059470AHeat-sealable laminated polyester filmDIAFOIL CO LTD·Filed 1990·Granted Oct 22, 1991·50 cites·10 claims
- 2269US4985537AProcess of making a biaxially stretched polyester film and biaxially stretched polyester filmDIAFOIL CO LTD·Filed 1989·Granted Jan 15, 1991·23 cites·2 claims
- 2368US4814221APolyethylene-2,6-naphthalate film for capacitorDIAFOIL CO LTD·Filed 1986·Granted Mar 21, 1989·16 cites·3 claims
- 2465US5023291APolyester compositionDIAFOIL CO LTD·Filed 1989·Granted Jun 11, 1991·15 cites·6 claims
- 2565US4806422AThermal transfer (printing) filmDIAFOIL CO LTD·Filed 1987·Granted Feb 21, 1989·15 cites·9 claims
- 2664US5153302APolyester film for capacitorDIAFOIL CO LTD·Filed 1991·Granted Oct 6, 1992·28 cites·8 claims
- 2764US5093064ALow-shrinkage polyester film and preparation thereofDIAFOIL CO LTD·Filed 1990·Granted Mar 3, 1992·17 cites·5 claims
- 2863US5082730AStretched polyester film having an antistatic coating comprising a polymer having pyrrolidium rings in the main chainDIAFOIL CO LTD·Filed 1988·Granted Jan 21, 1992·23 cites·8 claims
- 2963US4725479APolyethylene naphthalate film for membrane switchDIAFOIL CO LTD·Filed 1986·Granted Feb 16, 1988·18 cites·7 claims
- 3062US4732799APolyethylene naphthalate filmDIAFOIL CO LTD·Filed 1986·Granted Mar 22, 1988·20 cites·14 claims
- 3161US4795672AMagnetic recording mediumDIAFOIL CO LTD·Filed 1987·Granted Jan 3, 1989·18 cites·7 claims
- 3257US5581435APolyester film capacitor elementDIAFOIL CO LTD·Filed 1991·Granted Dec 3, 1996·18 cites·10 claims
- 3357US4865898APolyester film for magnetic recording mediaDIAFOIL CO LTD·Filed 1987·Granted Sep 12, 1989·18 cites·11 claims
- 3457US4617164AProcess for stretching polyester filmsDIAFOIL CO LTD·Filed 1984·Granted Oct 14, 1986·13 cites·19 claims
- 3555US4680217APolyester film for magnetic recording mediaDIAFOIL CO LTD·Filed 1986·Granted Jul 14, 1987·19 cites·1 claims
- 3653US5100719ABiaxially oriented polyester film containing multilayered cross-linked particlesDIAFOIL CO LTD·Filed 1990·Granted Mar 31, 1992·13 cites·8 claims
- 3752US5188891AMagnetic recording medium comprising a polyester film substrate, a magnetic coating and a specified back coat layerDIAFOIL CO LTD·Filed 1991·Granted Feb 23, 1993·15 cites·4 claims
- 3850US5061571ABiaxially oriented polyester filmDIAFOIL CO LTD·Filed 1990·Granted Oct 29, 1991·10 cites·5 claims
- 3949US4767657APolyester films suitable for use in magnetic tapesDIAFOIL CO LTD·Filed 1986·Granted Aug 30, 1988·12 cites·8 claims
- 4048US4727108APolyester compositions and process of preparing polyester films from themDIAFOIL CO LTD·Filed 1986·Granted Feb 23, 1988·9 cites·8 claims
- 4148US4610833AProcess for preparing biaxially stretched polyester filmsDIAFOIL CO LTD·Filed 1983·Granted Sep 9, 1986·13 cites·8 claims
- 4246US5045379APolyester film for high density magnetic recording mediumDIAFOIL CO LTD·Filed 1989·Granted Sep 3, 1991·6 cites·8 claims
- 4346US4960636ABiaxially oriented polyester film for floppy diskDIAFOIL CO LTD·Filed 1990·Granted Oct 2, 1990·9 cites·2 claims
- 4445US4812360AThermal transfer (printing) materialDIAFOIL CO LTD·Filed 1988·Granted Mar 14, 1989·8 cites·2 claims
- 4545US4769190AProcess for producing polyphenylene sulfide filmDIAFOIL CO LTD·Filed 1987·Granted Sep 6, 1988·11 cites·21 claims
- 4644US4973515AMagnetic cardDIAFOIL CO LTD·Filed 1988·Granted Nov 27, 1990·8 cites·2 claims
- 4744US4781963AMagnetic recording mediumDIAFOIL CO LTD·Filed 1987·Granted Nov 1, 1988·9 cites·12 claims
- 4841US5145746ALaminating material for safety glassDIAFOIL CO LTD·Filed 1991·Granted Sep 8, 1992·21 cites·4 claims
- 4940US4729915AElectrical insulating materialDIAFOIL CO LTD·Filed 1986·Granted Mar 8, 1988·6 cites·12 claims
- 5037US4886705APolyphenylene sulfide filmDIAFOIL CO LTD·Filed 1988·Granted Dec 12, 1989·5 cites·17 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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