Characteristics of IP Disputes by Industry — Pharmaceuticals, Telecommunications, IT, Gaming

Watanabe: Our firm frequently receives requests concerning intellectual property from companies across a wide range of industries, particularly listed companies. We also occasionally handle requests from overseas companies. It's fair to say there's no particular bias in the sectors we serve, with requests coming from diverse industries such as pharmaceuticals, food, IT, telecommunications, and gaming. Mr. Shimizu, do you see any distinct characteristics by industry?
Shimizu: Pharmaceuticals is a field where the scope of patent protection directly impacts marketability, carrying significant economic implications. There are many challenges from generic manufacturers, and consultations have increased further since the introduction of the patent linkage system. Regarding this point, during my time at the court, I was involved in shaping rules concerning the scope of extended patents through decisions like the Grand Bench ruling. I am able to leverage that expertise, including the court's perspective, in my legal practice.
Watanabe: What other industries have seen particularly high consultation volumes recently?
Shimizu: Telecommunications/IT, health foods, and the gaming industry are also very active. Gaming patents, in particular, frequently raise issues like "is this just a set of rules?" or "can this even be considered an invention?" While I often sympathize with such arguments, it's not easy to significantly alter practices that have developed over many years. Therefore, when asserting patent invalidity, it's necessary to engage in detailed discussions addressing the specific problems within the patent.
Watanabe: Indeed, game patents are highly abstract and require ingenuity in their composition, presenting characteristics unique to this field.

The Appeal of Design, Copyright, and Unfair Competition — Organizing Creative Disputes

Watanabe: While the above primarily focused on patents, the TRIPP TRAPP case is widely regarded as one of your signature cases, Mr. Shimizu. Beyond patents, you handle a wide range of intellectual property matters, including designs, trademarks, and unfair competition, providing numerous consultations across these fields.
Shimizu: I find each field has its own distinct appeal, different from patents. Cases involving design touch on design patents, three-dimensional trademarks, unfair competition, and copyright. It's not simply a matter of interpreting the law; rather, it requires meticulous work to identify the design's distinctive features. This is one of the most creative and interesting aspects of legal practice. When such deliberations lead to a favorable outcome for the client, it brings a real sense of accomplishment.
Watanabe: In one case, after writing an opinion that led to a favorable ruling, I was asked by the opposing counsel in that case to draft an opinion for a separate matter. Receiving high praise not only from clients but also from fellow practitioners involved in intellectual property work was a significant source of encouragement.

The Role as a "Translator" of Technology

Watanabe: In intellectual property law, not only attorneys but also patent attorneys often participate as experts. Clients' IP departments and legal departments are also staffed with highly capable individuals. Within this context, one of the challenges for attorneys in IP law is how to digest technical information and convey it to the court.
Shimizu: You're absolutely right. Patent cases, in particular, involve complex technical backgrounds, yet judges are not technical experts.
Therefore, we consciously strive to translate engineers' explanations into "language understandable within a legal context," conveying neither excessive nor insufficient information. We must not lose sight of the essence of the technology, yet avoid being overly technical. This requires striking a balance as the technology's "interpreter."
Watanabe: I also strongly emphasize creating documents structured to be understood by non-specialists. The process of reorganizing complex technology into logical arguments is one of the true joys of intellectual property law.

What Court Experience Brings to Practice

Watanabe: Mr. Shimizu, during your time at the court, you served in the Intellectual Property Division for nearly 20 years and also held the position of Chief Judge of the Intellectual Property High Court. How has that experience been useful since entering private practice?
Shimizu: Even during my time at the court, I recognized that IP cases involve the intricate interplay of technology, law, and facts, with proceedings becoming increasingly sophisticated. As an attorney, I strive to anticipate the court's interests and the process by which they form their impressions, drawing on my past experience. I then tailor my arguments and presentation of evidence to align with the court's current focus.
Watanabe: Many judges refrain from revealing their impressions during proceedings. How do you handle such situations, Mr. Shimizu?
Shimizu: It's true that judges, myself included, generally don't reveal their impressions during proceedings. However, it's entirely possible to discern their inclinations from their litigation management and the nuances of their questioning. I adjust my arguments and presentation accordingly.
Watanabe: Understanding the court's perspective and being able to work backward to determine when to conclude the discussion is a significant advantage for counsel.