Assignee
YAMAMURA GLASS CO LTD
29 granted patents·1,028 citations·filing 1974–2000
Top patents by PatentIndex Score
29 records- 0194US5691256AGlass composition for magnetic disk substrates and magnetic disk substrateYAMAMURA GLASS CO LTD·Filed 1996·Granted Nov 25, 1997·112 cites·6 claims
- 0292US5874376AMagnetic disk substrateYAMAMURA GLASS CO LTD·Filed 1997·Granted Feb 23, 1999·79 cites·18 claims
- 0390US4021218AChemical method of strengthening glass articles subjected to abrasion resistance treatmentYAMAMURA GLASS CO LTD·Filed 1975·Granted May 3, 1977·73 cites·10 claims
- 0490US3934714AMethod and apparatus for regulating orientation of containers or the likeYAMAMURA GLASS CO LTD·Filed 1974·Granted Jan 27, 1976·43 cites·2 claims
- 0586US4325725AApparatus for producing glass bottlesYAMAMURA GLASS CO LTD·Filed 1980·Granted Apr 20, 1982·31 cites·3 claims
- 0686US4164402AStrengthening of thin-walled, light glass containersYAMAMURA GLASS CO LTD·Filed 1978·Granted Aug 14, 1979·51 cites·6 claims
- 0786US3963348ADevice for detecting strain and foreign matters in glass container by a non-storage type pickup tubeYAMAMURA GLASS CO LTD·Filed 1975·Granted Jun 15, 1976·52 cites·9 claims
- 0885US5726108AGlass-ceramic magnetic disk substrateYAMAMURA GLASS CO LTD·Filed 1997·Granted Mar 10, 1998·68 cites·5 claims
- 0984US5858280APreparation of transparent methyl-modified silica gelYAMAMURA GLASS CO LTD·Filed 1996·Granted Jan 12, 1999·47 cites·21 claims
- 1080US4547067AApparatus for detecting faults in transparent objectsYAMAMURA GLASS CO LTD·Filed 1983·Granted Oct 15, 1985·35 cites·13 claims
- 1179US5470506AHeat-generating compositionYAMAMURA GLASS CO LTD·Filed 1994·Granted Nov 28, 1995·36 cites·14 claims
- 1276US4136832AMethod and apparatus for breaking up and separating waste glass to obtain culletYAMAMURA GLASS CO LTD·Filed 1977·Granted Jan 30, 1979·21 cites·5 claims
- 1375US5588544ABottle neck structure and a manufacturing method thereforYAMAMURA GLASS CO LTD·Filed 1992·Granted Dec 31, 1996·38 cites·27 claims
- 1475US5468694AComposition for producing low temperature co-fired substrateYAMAMURA GLASS CO LTD·Filed 1993·Granted Nov 21, 1995·61 cites·20 claims
- 1570US4083776AMethod and apparatus for removing extraneous matter from waste glass with use of flow of waterYAMAMURA GLASS CO LTD·Filed 1976·Granted Apr 11, 1978·25 cites·7 claims
- 1668US5984124APilfer-proof cap made of synthetic resinYAMAMURA GLASS CO LTD·Filed 1997·Granted Nov 16, 1999·46 cites·15 claims
- 1768US4206253AMethod of strengthening chemically a glass containerYAMAMURA GLASS CO LTD·Filed 1978·Granted Jun 3, 1980·26 cites·9 claims
- 1867US6464093B1Pilfer-proof capYAMAMURA GLASS CO LTD·Filed 2000·Granted Oct 15, 2002·15 cites·3 claims
- 1967US4493722AMethod of producing glass bottlesYAMAMURA GLASS CO LTD·Filed 1982·Granted Jan 15, 1985·16 cites·8 claims
- 2066US5824419AThin film of potassium niobate, process for producing the thin film, and optical device using the thin filmYAMAMURA GLASS CO LTD·Filed 1996·Granted Oct 20, 1998·25 cites·13 claims
- 2164US3972435ASafety glass containerYAMAMURA GLASS CO LTD·Filed 1975·Granted Aug 3, 1976·23 cites·17 claims
- 2262US5762970AParison forming apparatus including core insert and parison transfer devices for forming a composite parisonYAMAMURA GLASS CO LTD·Filed 1995·Granted Jun 9, 1998·24 cites·12 claims
- 2360US4069979AMethod and apparatus for breaking up and separating waste glass to obtain culletYAMAMURA GLASS CO LTD·Filed 1976·Granted Jan 24, 1978·13 cites·1 claims
- 2457US5597396AMethod of and device for lubricating molds of bottle making machineYAMAMURA GLASS CO LTD·Filed 1994·Granted Jan 28, 1997·21 cites·33 claims
- 2549US4579574AMold lubricating apparatus for glassware making machinesYAMAMURA GLASS CO LTD·Filed 1984·Granted Apr 1, 1986·12 cites·4 claims
- 2648US5891531AProcess for producing a thin film of a flourideYAMAMURA GLASS CO LTD·Filed 1997·Granted Apr 6, 1999·13 cites·7 claims
- 2741US6203860B1Thin film of potassium niobate process for producing the thin film and optical device using the thin filmYAMAMURA GLASS CO LTD·Filed 1998·Granted Mar 20, 2001·7 cites·7 claims
- 2840US6109464APilfer-proof plastic cap screwable onto a bottle mouthYAMAMURA GLASS CO LTD·Filed 1996·Granted Aug 29, 2000·14 cites·3 claims
- 2916US4737183ABottle manufacturing apparatusYAMAMURA GLASS CO LTD·Filed 1987·Granted Apr 12, 1988·1 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →