As defined by https://support.google.com/webmasters/answer/185417?hl=en I used the following:
<title>mybiz | prd01 partnumber</title>
<div itemscope="itemscope" itemtype="http://schema.org/breadcrumb/collection">
<div itemscope="itemscope" itemtype="http://data-vocabulary.org/Breadcrumb">
<a href="http://www.mybiz.com.jr/cat-prod01/" itemprop="url">
<span itemprop="title">cat-prod01</span>
</a>
</div>
<div itemscope="itemscope" itemtype="http://data-vocabulary.org/Breadcrumb">
<span>›</span>
<a href="http://www.mybiz.com.jr/prod01/" itemprop="url">
<span itemprop="title">prod01</span>
</a>
</div>
</div>
in the Google Rich Snippet Test Tool it works fine, the fragment is also on the hole page, the
result is here http://www.google.com/webmasters/tools/richsnippets?q=uploaded:8004ead5f1f7ed7df2ea229e48ac0492
but the real Google result doesn’t show a rich fragment, there is someone complaining about problems here Breadcrumb with Schema.org is not displayed in the Google Rich Snippets Testing Tool and here schema.org Breadcrumb Navigation does not work
, , , schema.org .
, , , - :
<title>mybiz | prd01 partnumber</title>
<div xmlns:v="http://rdf.data-vocabulary.org/#" id="BreadCrumbs">
<span typeof="v:Breadcrumb">
<a href="http://www.c.jr/mybiz" rel="v:url" property="v:title">mybiz</a>
</span>
›
<span typeof="v:Breadcrumb">
<a href="http://www.c.jr/catprd01" rel="v:url" property="v:title">cat-prod01</a>
</span>
›
<span typeof="v:Breadcrumb">
<a href="http://www.c.jr/catprd01/prd01" rel="v:url" property="v:title">prod01</a>
</span>
</div>
http://www.google.com/webmasters/tools/richsnippets?q=uploaded:8004ead6128f340ee942649a82819d22
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, , , , , Google.