I need advice on IP arrangements in the case of joint development.

When considering IP protection, it is important to determine how to formulate an IP strategy. The strategy will vary greatly depending on the field of research, the nature of the research results, and how you wish to utilize the research results in your business. The strategy and procedures differ depending on whether you are applying for and acquiring a patent on your own or jointly.
In the areas of law that can be handled by this office, we will mainly introduce you to specialists with experience in IP strategy, patent acquisition, and IP management. We would be happy to consider introducing you to an appropriate specialist according to what you have in mind. Please let us know what you have in mind.