Assignee
SUWA SEIKOSHA KK
JP·345 granted patents·6,787 citations·filing 1972–1985
Top patents by PatentIndex Score
345 records- 0199US4582395AActive matrix assembly for a liquid crystal display device including an insulated-gate-transistorSUWA SEIKOSHA KK·Filed 1981·Granted Apr 15, 1986·208 cites·53 claims
- 0298US4556605APhotochromic coating composition and photochromic synthetic resin ophthalmic lensSUWA SEIKOSHA KK·Filed 1983·Granted Dec 3, 1985·220 cites·18 claims
- 0398US4113391AMethod for controlling voltage and providing temperature compensation in a thermal printerSUWA SEIKOSHA KK·Filed 1976·Granted Sep 12, 1978·82 cites·14 claims
- 0496US4538291AX-ray sourceSUWA SEIKOSHA KK·Filed 1982·Granted Aug 27, 1985·114 cites·14 claims
- 0596US4517519AFSK Demodulator employing a switched capacitor filter and period countersSUWA SEIKOSHA KK·Filed 1981·Granted May 14, 1985·130 cites·7 claims
- 0696US4320320ACoupled mode tuning fork type quartz crystal vibratorSUWA SEIKOSHA KK·Filed 1979·Granted Mar 16, 1982·66 cites·45 claims
- 0793US4580883AProgressive multifocal ophthalmic lensesSUWA SEIKOSHA KK·Filed 1981·Granted Apr 8, 1986·75 cites·13 claims
- 0893US4393380ALiquid crystal display systemsSUWA SEIKOSHA KK·Filed 1980·Granted Jul 12, 1983·98 cites·18 claims
- 0993US4259026ADot printer having concentric driving camsSUWA SEIKOSHA KK·Filed 1979·Granted Mar 31, 1981·46 cites·29 claims
- 1093US4103187APower-on reset semiconductor integrated circuitSUWA SEIKOSHA KK·Filed 1976·Granted Jul 25, 1978·38 cites·14 claims
- 1193US3955190AElectro-optical digital displaySUWA SEIKOSHA KK·Filed 1973·Granted May 4, 1976·193 cites·7 claims
- 1292US4431272ALiquid crystal display deviceSUWA SEIKOSHA KK·Filed 1981·Granted Feb 14, 1984·105 cites·26 claims
- 1392US4364067AHighly integrated ink jet headSUWA SEIKOSHA KK·Filed 1980·Granted Dec 14, 1982·61 cites·10 claims
- 1491US4570115AVoltage regulator for liquid crystal displaySUWA SEIKOSHA KK·Filed 1984·Granted Feb 11, 1986·58 cites·25 claims
- 1591US4429305ALiquid crystal display systemSUWA SEIKOSHA KK·Filed 1980·Granted Jan 31, 1984·85 cites·13 claims
- 1691US4244658ADot printer headSUWA SEIKOSHA KK·Filed 1979·Granted Jan 13, 1981·38 cites·10 claims
- 1791US4023344AAutomatically corrected electronic timepieceSUWA SEIKOSHA KK·Filed 1975·Granted May 17, 1977·54 cites·17 claims
- 1890US4423929AMulti-layer display deviceSUWA SEIKOSHA KK·Filed 1980·Granted Jan 3, 1984·160 cites·17 claims
- 1990US4258310ASelectively adjustable voltage detection integrated circuitSUWA SEIKOSHA KK·Filed 1978·Granted Mar 24, 1981·33 cites·35 claims
- 2089US4575777AMagnetic recording and reproducing headSUWA SEIKOSHA KK·Filed 1982·Granted Mar 11, 1986·36 cites·32 claims
- 2189US4537479AProgressive multifocal ophthalmic lensSUWA SEIKOSHA KK·Filed 1984·Granted Aug 27, 1985·57 cites·12 claims
- 2289US4428802APalladium-nickel alloy electroplating and solutions thereforSUWA SEIKOSHA KK·Filed 1981·Granted Jan 31, 1984·57 cites·17 claims
- 2389US4377765AMode coupled tuning fork type quartz crystal vibrator and method of tuningSUWA SEIKOSHA KK·Filed 1981·Granted Mar 22, 1983·49 cites·33 claims
- 2489US4358837ATime correcting methodSUWA SEIKOSHA KK·Filed 1979·Granted Nov 9, 1982·41 cites·20 claims
- 2589US4274152ASetting mechanism of a watchSUWA SEIKOSHA KK·Filed 1979·Granted Jun 16, 1981·45 cites·19 claims
- 2689US4241339AMulti-colored display deviceSUWA SEIKOSHA KK·Filed 1978·Granted Dec 23, 1980·77 cites·9 claims
- 2789US4105902ATouch sensitive input for electronic wristwatch and/or electronic calculatorSUWA SEIKOSHA KK·Filed 1976·Granted Aug 8, 1978·36 cites·11 claims
- 2888US4490112AOrthodontic system and methodSUWA SEIKOSHA KK·Filed 1982·Granted Dec 25, 1984·131 cites·11 claims
- 2988US4386836AElectro-photographic printerSUWA SEIKOSHA KK·Filed 1980·Granted Jun 7, 1983·84 cites·36 claims
- 3087US4410827AMode coupled notched tuning fork type quartz crystal resonatorSUWA SEIKOSHA KK·Filed 1981·Granted Oct 18, 1983·31 cites·28 claims
- 3187US4191906ATuning fork type quartz crystal resonator with notched tinesSUWA SEIKOSHA KK·Filed 1978·Granted Mar 4, 1980·28 cites·6 claims
- 3285US4523811ALiquid crystal display matrix including a non-linear deviceSUWA SEIKOSHA KK·Filed 1982·Granted Jun 18, 1985·55 cites·9 claims
- 3385US4466713ALens holding structure and wire materialSUWA SEIKOSHA KK·Filed 1981·Granted Aug 21, 1984·41 cites·6 claims
- 3485US4456393AWire dot printerSUWA SEIKOSHA KK·Filed 1981·Granted Jun 26, 1984·35 cites·67 claims
- 3585US4421621AQuartz crystal oscillatorSUWA SEIKOSHA KK·Filed 1981·Granted Dec 20, 1983·29 cites·11 claims
- 3685US4212156AStep motor control mechanism for electronic timepieceSUWA SEIKOSHA KK·Filed 1977·Granted Jul 15, 1980·22 cites·5 claims
- 3784US4418299AFace-shear mode quartz crystal vibrators and method of manufactureSUWA SEIKOSHA KK·Filed 1982·Granted Nov 29, 1983·28 cites·10 claims
- 3884US4316272AElectronic timepiece with global time zone displaySUWA SEIKOSHA KK·Filed 1979·Granted Feb 16, 1982·22 cites·14 claims
- 3984US4272840ASemiconductor integrated circuit for a timepieceSUWA SEIKOSHA KK·Filed 1978·Granted Jun 9, 1981·22 cites·15 claims
- 4084US4182110AElectronic wristwatch including auxiliary power supplySUWA SEIKOSHA KK·Filed 1977·Granted Jan 8, 1980·31 cites·16 claims
- 4184US4103191AStep motorSUWA SEIKOSHA KK·Filed 1974·Granted Jul 25, 1978·28 cites·9 claims
- 4284US3979656ABattery charging circuitSUWA SEIKOSHA KK·Filed 1974·Granted Sep 7, 1976·31 cites·5 claims
- 4383US4183203AElectronic timepiece time zone displaySUWA SEIKOSHA KK·Filed 1977·Granted Jan 15, 1980·31 cites·7 claims
- 4483US4099078AQuartz crystal tuning fork with three electrodes on each major tine faceSUWA SEIKOSHA KK·Filed 1976·Granted Jul 4, 1978·32 cites·8 claims
- 4583US4041691AElectronic timepiece battery monitoring circuitSUWA SEIKOSHA KK·Filed 1975·Granted Aug 16, 1977·30 cites·12 claims
- 4683US3967253ADisplay deviceSUWA SEIKOSHA KK·Filed 1974·Granted Jun 29, 1976·55 cites·20 claims
- 4782US4534623AHorizontally-stacked metal-insulator-metal element for electro-optical device and method for manufactureSUWA SEIKOSHA KK·Filed 1984·Granted Aug 13, 1985·42 cites·16 claims
- 4882US3969641AQuartz crystal vibratorSUWA SEIKOSHA KK·Filed 1974·Granted Jul 13, 1976·30 cites·26 claims
- 4981US4496246ATimepiece constructionSUWA SEIKOSHA KK·Filed 1981·Granted Jan 29, 1985·38 cites·10 claims
- 5081US4242679ALiquid crystal display mechanismSUWA SEIKOSHA KK·Filed 1978·Granted Dec 30, 1980·34 cites·14 claims
Showing the top 50 of 345 patent records by PatentIndex Score.
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