Inventor · disambiguated record
Masaharu Koyama
Also filed as: KOYAMA MASAHARU
13 granted patents·489 citations·filing 1976–1995
94Inventor score
Top patents by PatentIndex Score
13 records- 0192US5582103AMethod for making an anti-counterfeit latent image formation object for bills, credit cards, etc.DIRECTOR GENERAL PRINTING BURE·Filed 1995·Granted Dec 10, 1996·153 cites·2 claims
- 0291US5437897AAnti-counterfeit latent image formation object for bills, credit cards, etc. and method for making the sameDIRECTOR GENERAL PRINTING BURE·Filed 1993·Granted Aug 1, 1995·78 cites·12 claims
- 0380US4910478AAmplifier circuit and method of controlling output power thereofMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Mar 20, 1990·32 cites·12 claims
- 0478US4412214ALiquid crystal display element having non-display electrode arrangementHITACHI LTD·Filed 1981·Granted Oct 25, 1983·43 cites·11 claims
- 0576US4269617AProcess for the manufacture of liquid crystal display elementHITACHI LTD·Filed 1979·Granted May 26, 1981·27 cites·10 claims
- 0673US4458987AMulti-layer liquid crystal panel with sealing members and retainers in registrationHITACHI LTD·Filed 1981·Granted Jul 10, 1984·38 cites·11 claims
- 0771US4341445ALiquid crystal display element and production thereofHITACHI LTD·Filed 1980·Granted Jul 27, 1982·28 cites·9 claims
- 0861US4127321ALiquid crystal display apparatusHITACHI LTD·Filed 1976·Granted Nov 28, 1978·16 cites·6 claims
- 0960US4037930ALiquid crystal display cellsHITACHI LTD·Filed 1976·Granted Jul 26, 1977·15 cites·5 claims
- 1059US4494825AFill port seal with first and second photosensitizersHITACHI LTD·Filed 1982·Granted Jan 22, 1985·20 cites·10 claims
- 1159US4070749AMethod of manufacturing liquid crystal display devicesHITACHI LTD·Filed 1976·Granted Jan 31, 1978·16 cites·11 claims
- 1253US4043639AField effect type liquid crystal display elements provided with polarizing platesHITACHI LTD·Filed 1976·Granted Aug 23, 1977·12 cites·4 claims
- 1348US4431683AProcess for producing transparent electroconductive filmHITACHI LTD·Filed 1982·Granted Feb 14, 1984·11 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →