Inventor · disambiguated record
Keiji Tokunaga
Also filed as: TOKUNAGA KEIJI
4 granted patents·3 pending applications·78 citations·filing 2003–2020
76Inventor score
Top patents by PatentIndex Score
7 records- 0192US6866949B2Substrate film, gas barrier film, and display using the sameDAINIPPON PRINTING CO LTD·Filed 2003·Granted Mar 15, 2005·49 cites·11 claims
- 0278US7229703B2Gas barrier substrateDAINIPPON PRINTING CO LTD·Filed 2004·Granted Jun 12, 2007·25 cites·22 claims
- 0375US7442428B2Gas barrier substrateDAINIPPON PRINTING CO LTD·Filed 2006·Granted Oct 28, 2008·4 cites·7 claims
- 0469US12041801B2Liquid organic semiconductor materialJAPAN SCIENCE & TECH AGENCY·Filed 2020·Granted Jul 16, 2024·0 cites·13 claims
- 0560US2019044082A1Liquid organic semiconductor materialJAPAN SCIENCE & TECH AGENCY·Filed 2018·Application pending·0 cites
- 0648US2012175604A1Liquid organic semiconductor materialHANNA JUN-ICHI·Filed 2010·Application pending·0 cites
- 0741US2006231832A1Liquid crystalline organic compound, organic semiconductor structure, organic semiconductor device, and process for producing liquid crystalline organic compoundTOKUNAGA KEIJI·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →