partner-contact/partner_company_registry/views/res_partner.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data noupdate="0">

        <record model="ir.ui.view" id="view_partner_form_partner_company_registry">
            <field name="name">partner.view.form.partner_company_registry</field>
            <field name="model">res.partner</field>
            <field name="inherit_id" ref="base.view_partner_form" />
            <field name="priority" eval="200"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='title']" position="after">
                    <field name="company_registry" attrs="{'invisible': [('is_company', '=', False)]}"/>
                </xpath>
            </field>
        </record>

    </data>
</openerp>