Inventor · disambiguated record
Nobuo Yamashita
Also filed as: YAMASHITA NOBUO
29 granted patents·1,258 citations·filing 1974–2010
98Inventor score
Top patents by PatentIndex Score
29 records- 0194US4140364AVariable field optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1977·Granted Feb 20, 1979·317 cites·5 claims
- 0293US4596449AZoom lens apparatusWEST ELECTRIC CO·Filed 1983·Granted Jun 24, 1986·98 cites·7 claims
- 0392US4467361AImage pick-up apparatusOLYMPUS OPTICAL CO·Filed 1982·Granted Aug 21, 1984·84 cites·15 claims
- 0491US4684224AField view direction changing optical systemOLYMPUS OPTICAL CO·Filed 1983·Granted Aug 4, 1987·61 cites·3 claims
- 0588US4312572AFocusing objective lens system for endoscopesOLYMPUS OPTICAL CO·Filed 1979·Granted Jan 26, 1982·53 cites·8 claims
- 0687US4415240AIllumination optical system for an endoscopeOLYMPUS OPTICAL CO·Filed 1980·Granted Nov 15, 1983·43 cites·13 claims
- 0787US4037938ARetrofocus-type objective for endoscopesOLYMPUS OPTICAL CO·Filed 1975·Granted Jul 26, 1977·49 cites·13 claims
- 0885US4195904AOptical system of viewing-direction changing attachment for endoscopesOLYMPUS OPTICAL CO·Filed 1978·Granted Apr 1, 1980·42 cites·4 claims
- 0983US8676PPink dogwood "Benifuji"YAMASHITA NOBUO·Filed 1992·Granted Apr 5, 1994·3 cites·1 claims
- 1083US4285578APhoto eyepiece for endoscopesOLYMPUS OPTICAL CO·Filed 1978·Granted Aug 25, 1981·42 cites·4 claims
- 1182US4398811AViewing-direction changing optical systemOLYMPUS OPTICAL CO·Filed 1982·Granted Aug 16, 1983·140 cites·8 claims
- 1278US4610513AIllumination optical system for an endoscopeOLYMPUS OPTICAL CO·Filed 1984·Granted Sep 9, 1986·27 cites·6 claims
- 1378US4585313ALens drive device and optical lens assembly utilizing the sameWEST ELECTRIC CO·Filed 1983·Granted Apr 29, 1986·34 cites·13 claims
- 1474US4036218AEndoscopeOLYMPUS OPTICAL CO·Filed 1975·Granted Jul 19, 1977·63 cites·8 claims
- 1569US8070304B2Camera lens unitMATSUOKA KOUICHIRO·Filed 2006·Granted Dec 6, 2011·9 cites·19 claims
- 1668US4269485AMethod for focusing an objective lens of endoscopeOLYMPUS OPTICAL CO·Filed 1978·Granted May 26, 1981·21 cites·2 claims
- 1767US4824205AApparatus for improving image formed by imaging optical systemOLYMPUS OPTICAL CO·Filed 1987·Granted Apr 25, 1989·21 cites·25 claims
- 1864US8675PWhite dogwood Tsukuba-No-MineYAMASHITA NOBUO·Filed 1992·Granted Apr 5, 1994·1 cites·1 claims
- 1962US4294511AConnecting optical system for light guidesOLYMPUS OPTICAL CO·Filed 1979·Granted Oct 13, 1981·18 cites·1 claims
- 2062US4111529AOptical system for an endoscopeOLYMPUS OPTICAL CO·Filed 1977·Granted Sep 5, 1978·18 cites·1 claims
- 2154US4340811AFocusing method and apparatus for use in an optical systemOLYMPUS OPTICAL CO·Filed 1980·Granted Jul 20, 1982·34 cites·17 claims
- 2253US4029397ARetrofocus-type wide-angle photographic lens systemOLYMPUS OPTICAL CO·Filed 1974·Granted Jun 14, 1977·12 cites·7 claims
- 2347US4867136AEndoscope apparatusOLYMPUS OPTICAL CO·Filed 1988·Granted Sep 19, 1989·31 cites·36 claims
- 2442US4580552AIlluminating optical system for endoscopesOLYMPUS OPTICAL CO·Filed 1985·Granted Apr 8, 1986·21 cites·4 claims
- 2540US8241960B2Semiconductor device manufacturing equipment and semiconductor device manufacturing methodYAMASHITA NOBUO·Filed 2010·Granted Aug 14, 2012·0 cites·13 claims
- 2635US4350149AEndoscope and illumination optical system thereforOLYMPUS OPTICAL CO·Filed 1979·Granted Sep 21, 1982·9 cites·17 claims
- 2734US3992086ACompact retrofocus-type wide-angle photographic lens systemOLYMPUS OPTICAL CO·Filed 1974·Granted Nov 16, 1976·3 cites·2 claims
- 2832US3976366ARetrofocus-type ultra-wide angle photographic lens systemOLYMPUS OPTICAL CO·Filed 1974·Granted Aug 24, 1976·2 cites·11 claims
- 2931US3972594ARetrofocus-type wide-angle photographic lens systemOLYMPUS OPTICAL CO·Filed 1974·Granted Aug 3, 1976·2 cites·1 claims
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