Inventor · disambiguated record
Takehiko Nishiyama
Also filed as: NISHIYAMA TAKEHIKO
4 granted patents·1 pending application·118 citations·filing 1977–2003
80Inventor score
Top patents by PatentIndex Score
5 records- 0193US6580674B1Phase shifter and optical head device mounted with the sameASAHI GLASS CO LTD·Filed 2000·Granted Jun 17, 2003·60 cites·8 claims
- 0274US6917576B2Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2003·Granted Jul 12, 2005·8 cites·10 claims
- 0371US5331446ALiquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystalAG TECHNOLOGY CORP·Filed 1993·Granted Jul 19, 1994·37 cites·23 claims
- 0463US4120139ACable making apparatusTATSUTA DENSEN KK·Filed 1977·Granted Oct 17, 1978·13 cites·13 claims
- 0541US2003123371A1Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2002·Application pending·0 cites
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