Assignee
HEIYO SHOJI KABUSHIKI KAISHA
JP·3 granted patents·41 citations·filing 1991–1995
Top patents by PatentIndex Score
3 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
- 0322US5755952AMethod 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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