Inventor · disambiguated record
Keiji Oyama
Also filed as: OYAMA KEIJI
1 granted patent·8 pending applications·46 citations·filing 1990–2014
48Inventor score
Top patents by PatentIndex Score
9 records- 0164US5031252AToilet stool seat disinfecting apparatusTEISA SANGYO KK·Filed 1990·Granted Jul 16, 1991·46 cites·11 claims
- 0246US2017074592A1Double tube, heat exchanger, and method to manufacture double tubeCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0342US2017073594A1Gasification systemCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0441US2017067691A1Heat exchanger and method to manufacture heat exchangerCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0539US2017066982A1Gasification apparatus with supercritical fluidCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0638US2017066981A1Gasification apparatus with supercritical fluidCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0735US2017016201A1Heat exchange structure of power generation facilityCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0835US2017075102A1Guide tube for guiding cable of internal observation device and cable guiding methodCHUGOKU ELECTRIC POWER·Filed 2014·Application pending·0 cites
- 0934US2016230700A1Exhaust heat recovery apparatus of engineCHUGOKU ELECTRIC POWER·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →