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Kondo; Takeshi
Osaka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8136339 Oil-impregnated bushing, oil-free chain and method for manufacturing oil-impregnated bushing March 20, 2012
The oil-free chain is obtained by connecting a pair of inner link plates which are connected by oil-impregnated bushings and a pair of outer link plates, which are connected by pins inserted into adjacent oil-impregnated bushings of adjacent inner link plates alternately. The oil-imp
7980978 Hoisting and lowering driving engagement multi-row chain July 19, 2011
A hoisting and lowering driving engagement multi-row chain is disclosed, in which bending of the connecting pins in the chain is suppressed to avoid fatigue failure. Additionally, the load carrying balance in the chain width direction is improved, and contact vibrations and contact n
7921986 Hoisting and lowering driving engagement multi-row chain April 12, 2011
Aspects of the invention provide a hoisting and lowering driving engagement multi-row chain in which the weight of the chain is balanced across the chain width direction so as to improve the load balance. This allows the weight of articles to be hoisted and lowered more stably hoiste
6393818 Rolled product for chain and method for producing same May 28, 2002
A rolled product for a chain and a method for producing the rolled product are disclosed. Plural dimples are formed in a zigzag pattern in at least one of inner and outer peripheral surfaces of the rolled product, the dimples absorbing plastic deformation of a rolled workpiece when the

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