Is Ichiban Kuji under Banpresto?

Could you clarify for me, is Ichiban Kuji indeed a subsidiary or a brand that falls under the umbrella of Banpresto? I'm trying to understand the corporate structure and hierarchy in this context, specifically how the two entities are related, if at all. Is there a direct ownership or management LINK between Ichiban Kuji and Banpresto, or is it more of a partnership or licensing agreement? I'm eager to learn more about the business dynamics between these two entities.