odoo How to implement a tab in product category

I created a new fields in product category, but this file does'nt have tab (notebook). Do you have an idea to do that ?

Thank you.

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <record id="product_category_form_view_inherit" model="ir.ui.view">
            <field name="name">product.category.form.inherit</field>
            <field name="model">product.category</field>
            <field name="inherit_id" ref="product.product_category_form_view"/>
            <field name="arch" type="xml">
                <field name="type" position="after">
                    <field name="categories_name" colspan="4"  placeholder="Categories Name"/>
                    <field name="categories_image" colspan="4" widget="image" class="oe_avatar oe_left"/>
                    <field name="categories_seo_title" colspan="4" placeholder="SEO Title"/>
                    <field name="categories_seo_description" colspan="4" placeholder="SEO Description"/>
                    <field name="categories_seo_keyword" colspan="4" placeholder="SEO keywords"/>
                </field>
            </field>
        </record>
    </data>
</openerp>