Hidefumi Hirai

Organization

Tokyo, JP

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

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
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
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

Hidefumi Hirai

Organization

Patents Grantslast 30 patents

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

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...

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

Patents Applicationslast 30 patents

Trademarklast 30 trademarks