Inventor · disambiguated record
Eiji Akiyama
Also filed as: AKIYAMA EIJI
5 granted patents·7 pending applications·35 citations·filing 1987–2021
70Inventor score
Top patents by PatentIndex Score
12 records- 0186US7645536B2Fuel cell, fuel cartridge and fuel cell systemNEC CORP·Filed 2004·Granted Jan 12, 2010·34 cites·19 claims
- 0249US7618733B2Fuel cellNEC CORP·Filed 2005·Granted Nov 17, 2009·0 cites·8 claims
- 0347US7678485B2Fuel cartridge, fuel cell and portable electrical appliance including fuel cellNEC CORP·Filed 2004·Granted Mar 16, 2010·0 cites·6 claims
- 0447US2007154768A1Fuel cartridge for fuel cell and fuel cell using the sameWATANABE YOSHINORI·Filed 2005·Application pending·0 cites
- 0547US2007154767A1Fuel cartridge for fuel cell and fuel cell using the sameNEC CORP·Filed 2005·Application pending·0 cites
- 0645US2007166587A1Fuel cellNEC CORP·Filed 2004·Application pending·0 cites
- 0744US2024345057A1Film sensor and hydrogen detection systemUNIV TOHOKU·Filed 2021·Application pending·0 cites
- 0843US2007134531A1Fuel cell and method for fabricating sameKIMURA HIDEKAZU·Filed 2004·Application pending·0 cites
- 0941US8400703B2Optical switchAKIYAMA EIJI·Filed 2008·Granted Mar 19, 2013·0 cites·10 claims
- 1038US2006292418A1Fuel cell systemAKIYAMA EIJI·Filed 2004·Application pending·0 cites
- 1137US2006166072A1Fuel cell system, fuel cell operation method, and gas treatment deviceAKIYAMA EIJI·Filed 2004·Application pending·0 cites
- 1228US4751335AProcess for preparing a fluid for traction driveNIPPON OIL CO LTD·Filed 1987·Granted Jun 14, 1988·1 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →