Hiroaki Koyama

Person

Kobe, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Resin composition containing granular or powdery phenol-aldehyde resin
- Patent number 4,598,110
- Issue date Jul 1, 1986
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin composition containing granular or powdery phenol-aldehyde resin
- Patent number 4,596,845
- Issue date Jun 24, 1986
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin composition containing granular or powdery phenol-aldehyde resin
- Patent number 4,558,089
- Issue date Dec 10, 1985
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Resin composition containing granular or powdery phenol-aldehyde resin
- Patent number 4,476,277
- Issue date Oct 9, 1984
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing carbon articles
- Patent number 4,466,932
- Issue date Aug 21, 1984
- Kanebo Ltd.
- Hiroaki Koyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Composition containing a powder of an inorganic material
- Patent number 4,460,730
- Issue date Jul 17, 1984
- Kanebo, Ltd.
- Hiroaki Koyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Granular or powdery phenol-aldehyde resin and process for productio...
- Patent number 4,454,298
- Issue date Jun 12, 1984
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Granular or powdery nitrogen-containing phenol-aldehyde copolymer r...
- Patent number 4,414,379
- Issue date Nov 8, 1983
- Kanebo Ltd.
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Granular or powdery phenol-formaldehyde resin and process for produ...
- Patent number 4,414,378
- Issue date Nov 8, 1983
- Mitsubishi Chemical Industries Limited
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cured novolak fiber-reinforced, chlorinated rubber molded articles...
- Patent number 4,316,969
- Issue date Feb 23, 1982
- Nippon Kynol Incorporated
- Hiroaki Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Hiroaki Koyama

Person

Patents Grantslast 30 patents

Resin composition containing granular or powdery phenol-aldehyde resin

Resin composition containing granular or powdery phenol-aldehyde resin

Resin composition containing granular or powdery phenol-aldehyde resin

Resin composition containing granular or powdery phenol-aldehyde resin

Process for producing carbon articles

Composition containing a powder of an inorganic material

Granular or powdery phenol-aldehyde resin and process for productio...

Granular or powdery nitrogen-containing phenol-aldehyde copolymer r...

Granular or powdery phenol-formaldehyde resin and process for produ...

Cured novolak fiber-reinforced, chlorinated rubber molded articles...