Inventor · disambiguated record
Nagahisa Matsudaira
Also filed as: MATSUDAIRA NAGAHISA
5 granted patents·279 citations·filing 1982–1999
85Inventor score
Files withTOPPAN PRINTING CO LTD5
Top patents by PatentIndex Score
5 records- 0192US5700550ATransparent hologram sealTOPPAN PRINTING CO LTD·Filed 1994·Granted Dec 23, 1997·118 cites·15 claims
- 0288US4448493AElectrochromic display deviceTOPPAN PRINTING CO LTD·Filed 1982·Granted May 15, 1984·75 cites·14 claims
- 0374US6096431ABiodegradable cardsTOPPAN PRINTING CO LTD·Filed 1995·Granted Aug 1, 2000·39 cites·13 claims
- 0467US5486933AMonochromatic-light reproduction type hologram, and method and apparatus for its image reproductionTOPPAN PRINTING CO LTD·Filed 1993·Granted Jan 23, 1996·30 cites·1 claims
- 0552USRE38321ETransparent hologram sealTOPPAN PRINTING CO LTD·Filed 1999·Granted Nov 18, 2003·17 cites·71 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →