Assignee
HOYA GLASS WORKS LTD
18 granted patents·392 citations·filing 1974–1977
Top patents by PatentIndex Score
18 records- 0195US3958999AOptical glassHOYA GLASS WORKS LTD·Filed 1975·Granted May 25, 1976·77 cites·12 claims
- 0289US3959000AHigh strength glass made by ion exchangeHOYA GLASS WORKS LTD·Filed 1974·Granted May 25, 1976·60 cites·7 claims
- 0387US4239645APhosphate base laser glassesHOYA GLASS WORKS LTD·Filed 1976·Granted Dec 16, 1980·55 cites·3 claims
- 0480US4001019AReversible light sensitive glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jan 4, 1977·18 cites·1 claims
- 0579US4055435AGlass compositions for ophthalmic lensesHOYA GLASS WORKS LTD·Filed 1976·Granted Oct 25, 1977·32 cites·4 claims
- 0674US3971723AGlass for Faraday rotator elementHOYA GLASS WORKS LTD·Filed 1974·Granted Jul 27, 1976·14 cites·3 claims
- 0769US3961931AApparatus for heat-bonding optical fibersHOYA GLASS WORKS LTD·Filed 1975·Granted Jun 8, 1976·16 cites·7 claims
- 0867US3941605AReversible light-sensitive glassHOYA GLASS WORKS LTD·Filed 1974·Granted Mar 2, 1976·19 cites·2 claims
- 0963US4065283AMethod for making a glass-based soft-edged aperture filtersHOYA GLASS WORKS LTD·Filed 1976·Granted Dec 27, 1977·22 cites·9 claims
- 1063US3998647AReversible light-sensitive glassHOYA GLASS WORKS LTD·Filed 1974·Granted Dec 21, 1976·16 cites·1 claims
- 1162US4097258AOptical fiberHOYA GLASS WORKS LTD·Filed 1976·Granted Jun 27, 1978·23 cites·4 claims
- 1259US4108621AProcess of producing soft aperture filterHOYA GLASS WORKS LTD·Filed 1976·Granted Aug 22, 1978·16 cites·6 claims
- 1355US3966447AHeat absorbing sealing method for laser glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jun 29, 1976·11 cites·8 claims
- 1442US3942965AProcess for producing a gas tight light transmitting optical fiber plateHOYA GLASS WORKS LTD·Filed 1974·Granted Mar 9, 1976·4 cites·2 claims
- 1536US4042526ANon-crystalline substance having an optical memory effectHOYA GLASS WORKS LTD·Filed 1975·Granted Aug 16, 1977·2 cites·13 claims
- 1635US3966448ASealing method for laser glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jun 29, 1976·1 cites·6 claims
- 1726US4043852AAnomalous dispersion glass exhibiting the anomalous partially dispersing property in the long wave length regionHOYA GLASS WORKS LTD·Filed 1976·Granted Aug 23, 1977·2 cites·7 claims
- 1825US4277523AMethod of preventing tarnishing of polished glass articlesHOYA GLASS WORKS LTD·Filed 1977·Granted Jul 7, 1981·4 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →