Hidefumi Hirai

Person

Yutenji, Meguro-Ku, Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preparing a non-aqueous dispersion of particles of a met...
- Patent number 6,051,614
- Issue date Apr 18, 2000
- Hirai; Hidefumi
- Hidefumi Hirai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for introducing a carboxyl group to an aromatic carboxylic...
- Patent number 5,319,134
- Issue date Jun 7, 1994
- Hidefumi Hirai
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Colloidal metal dispersion, and a colloidal metal complex
- Patent number 5,187,209
- Issue date Feb 16, 1993
- Hidefumi Hirai
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of poly-p-phenylene with (1) aluminum chloride and (2)...
- Patent number 4,902,776
- Issue date Feb 20, 1990
- Hirai; Hidefumi
- Hidefumi Hirai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Colloidal metal dispersion, and a colloidal metal complex
- Patent number 4,888,248
- Issue date Dec 19, 1989
- Hirai; Hidefumi
- Hidefumi Hirai
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for separation of unsaturated hydrocarbon from gas mixture
- Patent number 4,864,071
- Issue date Sep 5, 1989
- Hirai; Hidefumi
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solid absorbent for unsaturated hydrocarbon and process for separat...
- Patent number 4,747,855
- Issue date May 31, 1988
- Hirai; Hidefumi
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solid adsorbent for carbon monoxide and process for separation from...
- Patent number 4,696,682
- Issue date Sep 29, 1987
- Nippon Steel Corporation
- Hidefumi Hirai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Adsorbent for use in selective gas adsorption-separation and a proc...
- Patent number 4,675,309
- Issue date Jun 23, 1987
- Hirai; Hidefumi
- Hidefumi Hirai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for separating carbon dioxide from mixed gas
- Patent number 4,587,114
- Issue date May 6, 1986
- Hirai; Hidefumi
- Hidefumi Hirai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Solid adsorbent for unsaturated hydrocarbon and process for separat...
- Patent number 4,546,094
- Issue date Oct 8, 1985
- Hirai; Hidefumi
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovery of ethylene from gaseous mixture
- Patent number 4,525,180
- Issue date Jun 25, 1985
- Hidefumi Hirai
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing a para-substituted phenol derivative
- Patent number 4,523,031
- Issue date Jun 11, 1985
- Asahi Kasei Kogyo Kabushiki Kaisha
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for selectively producing para-substituted derivatives of p...
- Patent number 4,523,037
- Issue date Jun 11, 1985
- Asahi Kasei Kogyo Kabushiki Kaisha
- Hidefumi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solid adsorbent for carbon monoxide and process for separation from...
- Patent number 4,470,829
- Issue date Sep 11, 1984
- Nippon Steel Corporation
- Hidefumi Hirai
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for separating carbon monoxide from a gas mixture
- Patent number 4,460,384
- Issue date Jul 17, 1984
- Nippon Steel Corporation
- Hidefumi Hirai
- C01 - INORGANIC CHEMISTRY

Hidefumi Hirai

Person

Patents Grantslast 30 patents

Method for preparing a non-aqueous dispersion of particles of a met...

Process for introducing a carboxyl group to an aromatic carboxylic...

Colloidal metal dispersion, and a colloidal metal complex

Preparation of poly-p-phenylene with (1) aluminum chloride and (2)...

Colloidal metal dispersion, and a colloidal metal complex

Process for separation of unsaturated hydrocarbon from gas mixture

Solid absorbent for unsaturated hydrocarbon and process for separat...

Solid adsorbent for carbon monoxide and process for separation from...

Adsorbent for use in selective gas adsorption-separation and a proc...

Method for separating carbon dioxide from mixed gas

Solid adsorbent for unsaturated hydrocarbon and process for separat...

Process for recovery of ethylene from gaseous mixture

Process for producing a para-substituted phenol derivative

Process for selectively producing para-substituted derivatives of p...

Solid adsorbent for carbon monoxide and process for separation from...

Process for separating carbon monoxide from a gas mixture