Attorney Profile | Aoyama Law Office

CAREER

Career

March 1997	Graduated from Tsukuba University Attached Senior High School (National)
March 2002	Graduated from the University of Tokyo, Faculty of Law
October 2004	Registered as Attorney at Law (57th Class, Saga Bar Association)
2004 –	Practiced at a law firm in Saga Prefecture
January 2012	Established Aoyama Law Office
January 2012	Registered as Patent Attorney (Japan Patent Attorneys Association)

TECHNOLOGY

AI and Law — Our Journey

Our use of AI did not begin overnight.
From intellectual property practice, to legal support for early-stage AI, to the advent of generative AI —
our current capabilities are built on years of accumulated experience.

PHASE 1

Intellectual Property Law

As a member of the Japan Intellectual Property Lawyers Network, Aoyama has provided IP consultation at the Saga Prefecture IP Comprehensive Support Desk for over 10 years, assisting local companies with IP-related challenges. He has also continuously advised software development companies both inside and outside the prefecture on terms of use and intellectual property rights relating to software.

PHASE 2 — 2016 –

Legal Support for Early-Stage AI Using Deep Learning

Handled numerous development contracts and terms-of-use reviews for diverse AI development projects, including deep-learning-based sensor inspection systems, character recognition AI, and chatbot services. Through hands-on practice, Aoyama accumulated expertise on legal issues unique to AI — such as contractual treatment at the PoC (proof of concept) stage, rights relating to training data, ownership of trained models — and has also researched and advised on the application of data privacy laws to AI.

PHASE 3 — 2023 –

The Advent of Generative AI

Following the launch of ChatGPT, Aoyama was among the first to study its legal implications, while also subscribing to the paid plan for personal use. However, at the early stage, hallucinations (generation of inaccurate information) were a significant concern, and the technology had not yet reached a level suitable for direct use in legal work. Full-scale adoption in practice was therefore deferred.

PHASE 4 — Autumn 2024 –

Full-Scale AI Integration in Legal Practice

Around autumn 2024, models such as Claude 3.5 Sonnet and Gemini AI integrated into Google Workspace reached a level of accuracy sufficient for practical use, prompting a full-scale push to adopt AI in the firm's workflow. Centered on Gemini and Claude, AI was progressively incorporated into various stages of legal work — from preparing meeting minutes to conducting research and analysis with NotebookLM.

NOW — 2026

Full Deployment of AI Agents

In 2026, the firm introduced agentic AI tools such as Claude Code and Claude Cowork. AI now autonomously assists in drafting legal documents and conducting legal research under the attorney's direction, significantly enhancing operational efficiency. Today, AI is fully utilized across virtually all areas of practice, while the attorney focuses on verifying the accuracy of AI outputs and providing strategic oversight and professional judgment.

CURRENT CAPABILITIES

Rapid documentation of legal consultations as written minutes
Multi-faceted risk assessment and suggested revisions in contract review
Cross-referencing statutes, case law, and legal literature for prompt research reports
Appropriate security management tailored to the confidentiality level of information
Legal support for corporate AI adoption (terms of use, data privacy, internal policies)

For more details, please see Advisory Retainer and AI Adoption Support.

PUBLICATIONS

Publications

Takanori Aoyama has authored and co-authored works on legal practice and contemporary legal issues.

"Q&A Comprehensive Guide to Personal Information Handling — From Fundamentals to Utilization and Dispute Resolution"

Edited by the JFBA Information Issues Committee (Minji-Ho Kenkyukai; co-authored)

Authored the section on the so-called "cloud exception" under Japan's data privacy laws.
"Medical Malpractice Case Law Data File"

Edited by the Medical Malpractice Case Law Study Group (Shin Nihon Hoki Publishing; co-authored)

LECTURES

Lectures

Takanori Aoyama has delivered lectures on a wide range of topics including corporate law, intellectual property, and labor management.

Healthcare Law

Responding to Customer Harassment in Healthcare Institutions / Duty of Explanation in Post-Treatment Follow-Up / Telemedicine / Operation of the Medical Accident Investigation System / Issues Surrounding Patient Management in Psychiatric Wards / The New Medical Accident Investigation System / Medical Safety Seminars, and more

Intellectual Property

Fundamentals of Intellectual Property Rights for Businesses / IP Basics Every Startup Should Know / Dispute Case Studies on Patents, Trademarks, and Other IP / Learning from Failures — Preventing IP Pitfalls / The Role of IP and Contracts in SME and Venture Growth / Leveraging Trademarks in Business Operations / Legal and IP Risk Defense for Expansion into China and ASEAN / Brand Building Seminars for SMEs, and more

Labor & Harassment

Conducting Harassment Investigations / Building a Workplace Environment to Prevent Harassment / Pitfalls in Mental Health Strategies — Lessons from Failed Cases

Data Privacy & IT

Amendments to the Act on the Protection of Personal Information / Handling Personal Information and My Number for Professionals / Legal Issues in Crowdsourcing / Content Usage in Production — A Case-Study Approach

International Law

Japanese Business Customs (Overview of Japanese and Chinese Legal Regulations)

MEMBERSHIPS

Memberships

Active member of legal professional organizations and regional support bodies.

Professional Organizations

Japan Federation of Bar Associations (JFBA)
Japan Patent Attorneys Association (JPAA)
JFBA Committee on Attorney Practice Reform
Japan Intellectual Property Lawyers Network (Board Member)
Management Law Counsel Association

Regional Support

Registered Expert, Saga Prefecture IP Comprehensive Support Desk

Takanori Aoyama