Inventor · disambiguated record
Hidefumi Hirai
Also filed as: HIRAI HIDEFUMI
18 granted patents·471 citations·filing 1982–1997
95Inventor score
Files withHIRAI HIDEFUMI11NIPPON STEEL CORP3ASAHI CHEMICAL IND2DAISO CO LTD1MITSUBISHI GAS CHEMICAL CO1
Top patents by PatentIndex Score
18 records- 0192US5213895AParticle-bearing composite and a method for producing the sameDAISO CO LTD·Filed 1991·Granted May 25, 1993·95 cites·20 claims
- 0292US4587114AMethod for separating carbon dioxide from mixed gasHIRAI HIDEFUMI·Filed 1983·Granted May 6, 1986·65 cites·6 claims
- 0386US4696682ASolid adsorbent for carbon monoxide and process for separation from gas mixtureNIPPON STEEL CORP·Filed 1984·Granted Sep 29, 1987·29 cites·6 claims
- 0485US5187209AColloidal metal dispersion, and a colloidal metal complexHIRAI HIDEFUMI·Filed 1991·Granted Feb 16, 1993·71 cites·6 claims
- 0582US4470829ASolid adsorbent for carbon monoxide and process for separation from gas mixtureNIPPON STEEL CORP·Filed 1982·Granted Sep 11, 1984·29 cites·13 claims
- 0676US4747855ASolid absorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixtureHIRAI HIDEFUMI·Filed 1987·Granted May 31, 1988·32 cites·7 claims
- 0770US6051614AMethod for preparing a non-aqueous dispersion of particles of a metal and/or a metal compoundHIRAI HIDEFUMI·Filed 1992·Granted Apr 18, 2000·43 cites·15 claims
- 0870US4525180AProcess for recovery of ethylene from gaseous mixtureHIRAI HIDEFUMI·Filed 1984·Granted Jun 25, 1985·9 cites·18 claims
- 0967US4864071AProcess for separation of unsaturated hydrocarbon from gas mixtureHIRAI HIDEFUMI·Filed 1987·Granted Sep 5, 1989·18 cites·8 claims
- 1067US4675309AAdsorbent for use in selective gas adsorption-separation and a process for producing the sameHIRAI HIDEFUMI·Filed 1986·Granted Jun 23, 1987·22 cites·8 claims
- 1162US4888248AColloidal metal dispersion, and a colloidal metal complexHIRAI HIDEFUMI·Filed 1987·Granted Dec 19, 1989·21 cites·34 claims
- 1254US5319134AProcess for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereofHIRAI HIDEFUMI·Filed 1992·Granted Jun 7, 1994·6 cites·13 claims
- 1353US4546094ASolid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixtureHIRAI HIDEFUMI·Filed 1984·Granted Oct 8, 1985·9 cites·7 claims
- 1446US4902776APreparation of poly-p-phenylene with (1) aluminum chloride and (2) CU(I) Cl or VCl3HIRAI HIDEFUMI·Filed 1988·Granted Feb 20, 1990·6 cites·6 claims
- 1542US5922640AAdsorbent for carbon monoxideMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Jul 13, 1999·11 cites·4 claims
- 1637US4523037AProcess for selectively producing para-substituted derivatives of phenolsASAHI CHEMICAL IND·Filed 1983·Granted Jun 11, 1985·1 cites·10 claims
- 1737US4523031AProcess for producing a para-substituted phenol derivativeASAHI CHEMICAL IND·Filed 1983·Granted Jun 11, 1985·1 cites·10 claims
- 1832US4460384AProcess for separating carbon monoxide from a gas mixtureNIPPON STEEL CORP·Filed 1982·Granted Jul 17, 1984·3 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →