Inventor · disambiguated record
Norihiko Aoki
Also filed as: AOKI NORIHIKO
30 granted patents·914 citations·filing 1988–1999
98Inventor score
Top patents by PatentIndex Score
30 records- 0189US6327094B1High-performance and compact image-forming optical system using prism elementsOLYMPUS OPTICAL CO·Filed 1999·Granted Dec 4, 2001·88 cites·30 claims
- 0288US4999007AVari-focal lens systemOLYMPUS OPTICAL CO·Filed 1989·Granted Mar 12, 1991·72 cites·16 claims
- 0387US6704052B1Image pickup optical system comprising a prism fixing member for preventing a deterioration in the capability of correcting decentration abberation, and apparatus thereforeOLYMPUS CORP·Filed 1999·Granted Mar 9, 2004·104 cites·21 claims
- 0484US5157550AVari-focal lens systemOLYMPUS OPTICAL CO·Filed 1990·Granted Oct 20, 1992·61 cites·51 claims
- 0582US4998807AVariable focal length lens systemOLYMPUS OPTICAL CO·Filed 1989·Granted Mar 12, 1991·45 cites·9 claims
- 0677US5172272AImaging lens systemOLYMPUS OPTICAL CO·Filed 1990·Granted Dec 15, 1992·47 cites·17 claims
- 0776US6041193AReal-image zoom finder with rotationally asymmetric surfaceOLYMPUS OPTICAL CO·Filed 1998·Granted Mar 21, 2000·46 cites·23 claims
- 0876US5559638AWide-angle lens system #6OLYMPUS OPTICAL CO·Filed 1994·Granted Sep 24, 1996·41 cites·30 claims
- 0976US4830476ACompact zoom lens systemOLYMPUS OPTICAL CO·Filed 1988·Granted May 16, 1989·34 cites·8 claims
- 1074US6078411AReal-image finder optical system and apparatus using the sameOLYMPUS OPTICAL CO·Filed 1999·Granted Jun 20, 2000·40 cites·26 claims
- 1167US5610766AZooming lens systemOLYMPUS OPTICAL CO·Filed 1995·Granted Mar 11, 1997·31 cites·9 claims
- 1266US5184251AVari-focal lens systemOLYMPUS OPTICAL CO·Filed 1991·Granted Feb 2, 1993·27 cites·8 claims
- 1363US6178052B1Finder optical systemOLYMPUS OPTICAL CO·Filed 1997·Granted Jan 23, 2001·26 cites·5 claims
- 1460US6084715AImage-forming optical system and apparatus using the sameOLYMPUS OPTICAL CO·Filed 1999·Granted Jul 4, 2000·94 cites·20 claims
- 1558US6094315AImage-forming optical systemOLYMPUS OPTICAL CO·Filed 1999·Granted Jul 25, 2000·21 cites·14 claims
- 1658US5029994ALarge-aperture quasi-telephoto lens systemOLYMPUS OPTICAL CO·Filed 1989·Granted Jul 9, 1991·18 cites·24 claims
- 1755US5272566AVarifocal lens systemOLYMPUS OPTICAL CO·Filed 1992·Granted Dec 21, 1993·18 cites·27 claims
- 1851US4883346AZoom lens systemOLYMPUS OPTICAL CO·Filed 1988·Granted Nov 28, 1989·13 cites·9 claims
- 1950US5117309AVari-focal lens system having graded refractive index lensOLYMPUS OPTICAL CO·Filed 1990·Granted May 26, 1992·14 cites·34 claims
- 2049US5196962AVari-focal lens systemOLYMPUS OPTICAL CO·Filed 1991·Granted Mar 23, 1993·11 cites·32 claims
- 2146US5117308ALens system using unhomogenous mediaOLYMPUS OPTICAL CO·Filed 1991·Granted May 26, 1992·12 cites·4 claims
- 2246US4906079AZoom lens systemOLYMPUS OPTICAL CO·Filed 1988·Granted Mar 6, 1990·12 cites·13 claims
- 2342US5786945AZoom lens systemOLYMPUS OPTICAL CO·Filed 1996·Granted Jul 28, 1998·9 cites·21 claims
- 2441US5361167AVari-focal lens systemOLYMPUS OPTICAL CO·Filed 1992·Granted Nov 1, 1994·7 cites·24 claims
- 2539US5313328AOptical system comprising graded refractive index lens elementOLYMPUS OPTICAL CO·Filed 1992·Granted May 17, 1994·6 cites·7 claims
- 2638US5546229AOptical system comprising graded refractive index lens elementOLYMPUS OPTICAL CO·Filed 1994·Granted Aug 13, 1996·5 cites·4 claims
- 2734US5523885AViewfinder optical systemOLYMPUS OPTICAL CO·Filed 1990·Granted Jun 4, 1996·5 cites·12 claims
- 2833US5889621AOptical low pass filterOLYMPUS OPTICAL CO·Filed 1997·Granted Mar 30, 1999·2 cites·18 claims
- 2933US5703723AOptical system comprising graded refractive index lens elementOLYMPUS OPTICAL CO·Filed 1996·Granted Dec 30, 1997·2 cites·2 claims
- 3033US5032012ARear converter lens systemOLYMPUS OPTICAL CO·Filed 1989·Granted Jul 16, 1991·3 cites·18 claims
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