Inventor · disambiguated record
Keiji Osawa
Also filed as: OSAWA KEIJI
12 granted patents·1 pending application·171 citations·filing 1993–2006
92Inventor score
Files withNIKON CORP13
Top patents by PatentIndex Score
13 records- 0192US6272292B1Electronic flash control apparatusNIKON CORP·Filed 1999·Granted Aug 7, 2001·40 cites·10 claims
- 0287US6778325B2Optical filter and optical device provided with this optical filterNIKON CORP·Filed 2002·Granted Aug 17, 2004·24 cites·1 claims
- 0382US6650474B2Optical filter and optical device provided with this optical filterNIKON CORP·Filed 2002·Granted Nov 18, 2003·14 cites·5 claims
- 0481US6392803B2Optical filter and optical device provided with this optical filterNIKON CORP·Filed 2001·Granted May 21, 2002·15 cites·2 claims
- 0578US6327085B1Optical filter and optical device provided with this optical filterNIKON CORP·Filed 1999·Granted Dec 4, 2001·37 cites·1 claims
- 0671US7075719B2Optical filter and optical device provided with this optical filterNIKON CORP·Filed 2003·Granted Jul 11, 2006·6 cites·14 claims
- 0769US6803961B1Image-capturing apparatus, electronic still camera, method and apparatus for processing mounting surface of image-capturing apparatus and metal member contact structureNIKON CORP·Filed 2000·Granted Oct 12, 2004·9 cites·21 claims
- 0861US5678074APower focus device for a cameraNIKON CORP·Filed 1996·Granted Oct 14, 1997·6 cites·12 claims
- 0954US2006139752A1Optical filter and optical device provided with this optical filterNIKON CORP·Filed 2006·Application pending·0 cites
- 1049US7929858B2Image-capturing apparatus, electronic still camera, method and apparatus for processing mounting surface of image-capturing apparatus and metal member contact structureNIKON CORP·Filed 2004·Granted Apr 19, 2011·0 cites·1 claims
- 1144US5875360AFocus detection deviceNIKON CORP·Filed 1997·Granted Feb 23, 1999·11 cites·23 claims
- 1242US5412445APower focus device for a cameraNIKON CORP·Filed 1993·Granted May 2, 1995·3 cites·8 claims
- 1335US5498864ACamera focus detection apparatus detecting focus conditions among multiple areas within a photographic sceneNIKON CORP·Filed 1995·Granted Mar 12, 1996·6 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →