Inventor · disambiguated record
Yuuetsu Takuma
Also filed as: TAKUMA YUUETSU
4 granted patents·346 citations·filing 1987–1993
82Inventor score
Top patents by PatentIndex Score
4 records- 0196US5482525AMethod of producing elliptic core type polarization-maintaining optical fiberHITACHI CABLE·Filed 1993·Granted Jan 9, 1996·262 cites·8 claims
- 0285US4859223AMethod of manufacturing polarization-maintaining optical fibersHITACHI CABLE·Filed 1988·Granted Aug 22, 1989·37 cites·4 claims
- 0380US4946242AOptical part including integral combination of optical fiber and light emitting or receiving element and method of manufacturing the sameHITACHI LTD·Filed 1988·Granted Aug 7, 1990·34 cites·37 claims
- 0447US4818047APolarized wave preserving fiberHITACHI CABLE·Filed 1987·Granted Apr 4, 1989·13 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →