Inventor · disambiguated record
Tetsuro Izumitani
Also filed as: IZUMITANI TETSURO
31 granted patents·666 citations·filing 1974–1994
98Inventor score
Top patents by PatentIndex Score
31 records- 0195US3958999AOptical glassHOYA GLASS WORKS LTD·Filed 1975·Granted May 25, 1976·77 cites·12 claims
- 0293US4778505AMethod of molding glass bodyHOYA CORP·Filed 1988·Granted Oct 18, 1988·52 cites·9 claims
- 0392US4629489AMethod of manufacturing pressed lensesHOYA CORP·Filed 1985·Granted Dec 16, 1986·46 cites·23 claims
- 0487US4892402AMethod for making contact lens hydrophilicHOYA CORP·Filed 1988·Granted Jan 9, 1990·51 cites·6 claims
- 0587US4239645APhosphate base laser glassesHOYA GLASS WORKS LTD·Filed 1976·Granted Dec 16, 1980·55 cites·3 claims
- 0687US4120814AFluorophosphate-base laser glassesHOYA CORP·Filed 1977·Granted Oct 17, 1978·55 cites·9 claims
- 0780US4871230ASingle mode phosphate laser glass fiberHOYA CORP·Filed 1988·Granted Oct 3, 1989·27 cites·4 claims
- 0880US4001019AReversible light sensitive glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jan 4, 1977·18 cites·1 claims
- 0974US4816049AProcess of surface treating laser glassHOYA CORP·Filed 1986·Granted Mar 28, 1989·32 cites·11 claims
- 1074US3971723AGlass for Faraday rotator elementHOYA GLASS WORKS LTD·Filed 1974·Granted Jul 27, 1976·14 cites·3 claims
- 1171US4589118AMethod of optical pumping of erbium-doped laser material and apparatus thereforHOYA CORP·Filed 1985·Granted May 13, 1986·18 cites·4 claims
- 1270US4738703AMethod of molding optical lensesIZUMITANI TETSURO·Filed 1986·Granted Apr 19, 1988·21 cites·1 claims
- 1369US4625009AHigh-hydration contact lensHOYA CORP·Filed 1986·Granted Nov 25, 1986·18 cites·5 claims
- 1465US4108673AOptical phosphate glass in which the length of the light path is temperature independentHOYA CORP·Filed 1977·Granted Aug 22, 1978·20 cites·1 claims
- 1563US4065283AMethod for making a glass-based soft-edged aperture filtersHOYA GLASS WORKS LTD·Filed 1976·Granted Dec 27, 1977·22 cites·9 claims
- 1663US3998647AReversible light-sensitive glassHOYA GLASS WORKS LTD·Filed 1974·Granted Dec 21, 1976·16 cites·1 claims
- 1759US4549895AMethod and apparatus for melting glassHOYA CORP·Filed 1982·Granted Oct 29, 1985·16 cites·4 claims
- 1859US4108621AProcess of producing soft aperture filterHOYA GLASS WORKS LTD·Filed 1976·Granted Aug 22, 1978·16 cites·6 claims
- 1955US3966447AHeat absorbing sealing method for laser glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jun 29, 1976·11 cites·8 claims
- 2054US4806138AMethod for melting fluorophosphate glassHOYA CORP·Filed 1988·Granted Feb 21, 1989·13 cites·8 claims
- 2151US4820662ASilicophosphate laser glassHOYA CORP·Filed 1986·Granted Apr 11, 1989·14 cites·1 claims
- 2247US4919699AProcess of removing platinum inclusions from laser glassHOYA CORP·Filed 1988·Granted Apr 24, 1990·12 cites·7 claims
- 2343US4761387AFluoride glassHOYA CORP·Filed 1987·Granted Aug 2, 1988·10 cites·4 claims
- 2442US5665135AMethod for fabricating preforms for molded lensesFiled 1994·Granted Sep 9, 1997·7 cites·5 claims
- 2542US4363852ACoated phosphate glassHOYA CORP·Filed 1979·Granted Dec 14, 1982·7 cites·6 claims
- 2638US4767435AProcess for producing transparent glass product having refractive index gradientHOYA CORP·Filed 1986·Granted Aug 30, 1988·6 cites·5 claims
- 2736US4042526ANon-crystalline substance having an optical memory effectHOYA GLASS WORKS LTD·Filed 1975·Granted Aug 16, 1977·2 cites·13 claims
- 2835US3966448ASealing method for laser glassHOYA GLASS WORKS LTD·Filed 1974·Granted Jun 29, 1976·1 cites·6 claims
- 2931US4415464AFaraday rotation glassHOYA CORP·Filed 1982·Granted Nov 15, 1983·3 cites·2 claims
- 3026US4043852AAnomalous 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
- 3125US4277523AMethod of preventing tarnishing of polished glass articlesHOYA GLASS WORKS LTD·Filed 1977·Granted Jul 7, 1981·4 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Tetsuro Izumitani files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →