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Tokyo, JP
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last 30 patents
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Patent Grant
Closed deck type cylinder block and method for producing the same
Patent number
6,418,889
Issue date
Jul 16, 2002
Ryobi Ltd.
Tatsuya Manabe
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Metal mold arrangement for producing cylinder block
Patent number
6,415,848
Issue date
Jul 9, 2002
Ryobi Ltd.
Toru Komazaki
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cylinder liner and cylinder block and method for producing the cyli...
Patent number
5,727,511
Issue date
Mar 17, 1998
Ryobi Ltd.
Hiroyuki Omura
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Molten metal supply device
Patent number
5,700,422
Issue date
Dec 23, 1997
Ryobi Ltd.
Hirotake Usui
B22 - CASTING POWDER METALLURGY