Inventor · disambiguated record
Yoji Hirai
Also filed as: HIRAI YOJI
3 granted patents·3 pending applications·41 citations·filing 1991–2020
70Inventor score
Top patents by PatentIndex Score
6 records- 0170US5190901AMethod for producing active carbon using carbon-containing materialHEIYO SHOJI KABUSHIKI KAISHA·Filed 1991·Granted Mar 2, 1993·27 cites·2 claims
- 0254US5287383AMethod and apparatus for producing active carbon using carbon-containing materialHEIYO SHOJI KABUSHIKI KAISHA·Filed 1992·Granted Feb 15, 1994·12 cites·4 claims
- 0350US2022402445A1Molded body, and method for producing molded bodySHOWA DENKO MATERIALS CO LTD·Filed 2020·Application pending·0 cites
- 0448US2022339833A1Resin molded articleSHOWA DENKO MATERIALS CO LTD·Filed 2020·Application pending·0 cites
- 0546US2023025703A1Foam-molded product, method for manufacturing foam-molded product, and method for suppressing appearance defect of foam-molded productSHOWA DENKO MATERIALS CO LTD·Filed 2020·Application pending·0 cites
- 0622US5755952AMethod of activating a material to be activated for adsorbentHEIYO SHOJI KABUSHIKI KAISHA·Filed 1995·Granted May 26, 1998·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →