Hiroyuki Akiyama

Person

Hiratsuka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cushioning material
- Patent number 5,196,254
- Issue date Mar 23, 1993
- JSP Corporation
- Hiroyuki Akiyama
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Production method of prefoamed particles of polyolefin resin
- Patent number 4,889,671
- Issue date Dec 26, 1989
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of producing a foamed, molded article
- Patent number 4,806,293
- Issue date Feb 21, 1989
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Production process of pre-foamed particles
- Patent number 4,749,725
- Issue date Jun 7, 1988
- Japan Styrene Paper Corp.
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Heat treatment apparatus for polyolefin resin particles
- Patent number 4,716,021
- Issue date Dec 29, 1987
- Japan Styrene Paper Corp.
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Propylene-base random copolymer particles and production process th...
- Patent number 4,692,507
- Issue date Sep 8, 1987
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Propylene-base random copolymer particles and production process th...
- Patent number 4,602,082
- Issue date Jul 22, 1986
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrical conductive foam beads and molded electrical conductive f...
- Patent number 4,496,627
- Issue date Jan 29, 1985
- Fujimori Kogyo Co., Ltd.
- Tadashi Azuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing extruded plate-like polystyrene foam
- Patent number 4,451,417
- Issue date May 29, 1984
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of pressurizing treatment of pre-foamed particles of polyole...
- Patent number 4,443,393
- Issue date Apr 17, 1984
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing foamed and molded article of polypropylene resin
- Patent number 4,440,703
- Issue date Apr 3, 1984
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing pre-foamed particles of polyolefin resin
- Patent number 4,436,840
- Issue date Mar 13, 1984
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing foamed polyolefin articles from aged pre-foam...
- Patent number 4,399,087
- Issue date Aug 16, 1983
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing plate-like polystyrene resin foam
- Patent number 4,393,016
- Issue date Jul 12, 1983
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing foamed polystyrene boards
- Patent number 4,260,572
- Issue date Apr 7, 1981
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Hiroyuki Akiyama

Person

Patents Grantslast 30 patents

Cushioning material

Production method of prefoamed particles of polyolefin resin

Method of producing a foamed, molded article

Production process of pre-foamed particles

Heat treatment apparatus for polyolefin resin particles

Propylene-base random copolymer particles and production process th...

Propylene-base random copolymer particles and production process th...

Electrical conductive foam beads and molded electrical conductive f...

Method of producing extruded plate-like polystyrene foam

Method of pressurizing treatment of pre-foamed particles of polyole...

Process for producing foamed and molded article of polypropylene resin

Process for producing pre-foamed particles of polyolefin resin

Process for producing foamed polyolefin articles from aged pre-foam...

Process for producing plate-like polystyrene resin foam

Process for producing foamed polystyrene boards