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Iwakuni, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,375,889
Issue date
Dec 27, 1994
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,366,253
Issue date
Nov 22, 1994
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for preparing a laminate of metal and a polyolefin resin
Patent number
5,275,848
Issue date
Jan 4, 1994
Mitsui Petrochemical Industries, Ltd.
Kazunori Mito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,150,922
Issue date
Sep 29, 1992
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrofusion joint
Patent number
4,929,817
Issue date
May 29, 1990
Mitsui Petrochemical Industries, Ltd.
Kazunori Mito
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL