Inventor · disambiguated record
Isao Ishibai
Also filed as: ISHIBAI ISAO
13 granted patents·194 citations·filing 1979–1991
92Inventor score
Files withHOYA CORP13
Top patents by PatentIndex Score
13 records- 0178US4262988ABinoculars with automatic focusing systemHOYA CORP·Filed 1979·Granted Apr 21, 1981·31 cites·5 claims
- 0270US5166830AAspherical lens system for a bar code sensorHOYA CORP·Filed 1990·Granted Nov 24, 1992·52 cites·5 claims
- 0355US4284325AEye span adjustment mechanism for binocularsHOYA CORP·Filed 1979·Granted Aug 18, 1981·13 cites·4 claims
- 0452US5204781AInfinite large-aperture lens system with aspherical surfacesHOYA CORP·Filed 1991·Granted Apr 20, 1993·9 cites·4 claims
- 0551US4293187ABinocular optical system with automatic focussingHOYA CORP·Filed 1979·Granted Oct 6, 1981·11 cites·16 claims
- 0650US5087115AAspherical glass lens element suitable for an object lens element of a disk deviceHOYA CORP·Filed 1990·Granted Feb 11, 1992·16 cites·8 claims
- 0748US4776101AMethod and apparatus for testing aspherical lensesHOYA CORP·Filed 1987·Granted Oct 11, 1988·11 cites·6 claims
- 0848US4650297ABinocular optical system with automatic focusing mechanismHOYA CORP·Filed 1984·Granted Mar 17, 1987·11 cites·7 claims
- 0943US4488037AAutomatic focusing binocularHOYA CORP·Filed 1982·Granted Dec 11, 1984·8 cites·11 claims
- 1042US4436386ABinoculars housingHOYA CORP·Filed 1981·Granted Mar 13, 1984·8 cites·4 claims
- 1141US5002374AFinite conjugation large-aperture lens with aspherical surfacesHOYA CORP·Filed 1990·Granted Mar 26, 1991·9 cites·3 claims
- 1236US5020888AAspherical glass lens element suitable for a collimator lensHOYA CORP·Filed 1990·Granted Jun 4, 1991·8 cites·3 claims
- 1334US5004330AAspherical glass lens element formed by a low dispersion glass materialHOYA CORP·Filed 1990·Granted Apr 2, 1991·7 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →