Inventor · disambiguated record
Yukio Koumura
Also filed as: KOUMURA YUKIO
4 granted patents·9 citations·filing 2001–2004
66Inventor score
Files withFURUKAWA ELECTRIC CO LTD4
Top patents by PatentIndex Score
4 records- 0155US6542680B2Optical fiber preformFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Apr 1, 2003·4 cites·3 claims
- 0250US6823125B2Optical fiber base material, its manufacturing method and optical fiberFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Nov 23, 2004·5 cites·6 claims
- 0349US7135235B2Optical fiber preform and the method of producing the sameFURUKAWA ELECTRIC CO LTD·Filed 2004·Granted Nov 14, 2006·0 cites·4 claims
- 0449US6827883B2Optical fiber preform and the method of producing the sameFURUKAWA ELECTRIC CO LTD·Filed 2002·Granted Dec 7, 2004·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →