Former Japan-Taiwan Exchange Association Taipei Representative Ambassador Hiroyasu Izumi Appointed as Honorary Advisor to Yotsuba Real Estate Co., Ltd.

─ Former Journalist & Administrative Scrivener Real Estate Firm Uses Diplomatic Experience and International Insight as Business Compass ─

For Media Inquiries / Release Date: April 13, 2026

Yotsuba Real Estate Co., Ltd. (Headquarters: Kohinata, Bunkyo Ward, Tokyo; Representative Director: Joji Uramatsu) is pleased to announce the appointment of Hiroyasu Izumi (泉 裕泰), former Representative (Ambassador) of the Japan-Taiwan Exchange Association Taipei Office and current Senior Fellow of the Sasakawa Peace Foundation, as Honorary Advisor to the company.

As a "former journalist and administrative scrivener real estate company," Yotsuba Real Estate continues to develop the professional services matching platform "Shigyo.com SAMURAI," advancing beyond the traditional boundaries of real estate, legal affairs, and finance to build a "social trust foundation" that future generations can take pride in. Drawing on Ambassador Izumi's international insights cultivated at the forefront of diplomacy and his exemplary experience in safeguarding Japan's public credibility, we will further embody the ideals of the real estate platform we are developing.

▲ Representative Director Joji Uramatsu (left) presenting the letter of appointment to Honorary Advisor Hiroyasu Izumi (right)

Background and Purpose of the Appointment

Yotsuba Real Estate Co., Ltd. (Yotsuba Partners) is based in Kohinata, Bunkyo Ward, Tokyo, and operates as a "former journalist and administrative scrivener real estate company" offering one-stop services encompassing real estate rental, sales, and management, as well as inheritance, wills, trusts, residence status and visa matters, and various legal procedures. We are equipped to serve foreign customers with multilingual support in Japanese, English, and Chinese (Traditional and Simplified), ensuring that language barriers do not prevent access to our housing and legal consultation services.

Representative Director Joji Uramatsu is a former China Bureau Chief at the Mainichi Shimbun who served on the frontlines of international journalism. In addition to his qualifications as a Real Estate Transaction Specialist and Administrative Scrivener, he passed the Social Insurance Labor Consultant examination in October 2025. He has consistently pursued the importance of "trust-building" in real estate transactions and has developed a "professional expert network" through partnerships with specialists in fields such as tax accounting, judicial scrivening, and social insurance labor consultation.

In realizing these ideals, Ambassador Izumi's career as a diplomat—particularly his experience in laying the foundation for Japan's international credibility—deeply resonates with the direction of the social infrastructure we aspire to build.

With this appointment, Representative Director Joji Uramatsu has formally presented the letter of appointment to Ambassador Izumi, welcoming him as Honorary Advisor (unpaid).

Hiroyasu Izumi – Profile

Name: Hiroyasu Izumi (泉 裕泰)
Current Position: Senior Fellow, Sasakawa Peace Foundation
Areas of Expertise & Interest: Chinese domestic affairs and diplomacy / Taiwan

Career Overview

Date	Career Milestone
March 1981	Graduated from Faculty of Law, University of Tokyo
April 1981	Joined the Ministry of Foreign Affairs
1985	Completed Master's Program in East Asian Studies, University of California, Berkeley
July 1996	First Secretary, Embassy of Japan in the United Kingdom
January 1998	Counselor, Embassy of Japan in the United Kingdom
August 1998	Counselor, Embassy of Japan in the People's Republic of China
April 2001	Director, Human Rights and Humanitarian Affairs Division, Comprehensive Diplomatic Policy Bureau, Ministry of Foreign Affairs
April 2003	Director, Overseas Establishments Division, Minister's Secretariat
April 2004	Director, China Division, Asian and Oceanian Affairs Bureau
August 2006	Minister, Embassy of Japan in the People's Republic of China
July 2010	Consul-General, Japan Consulate-General in Shanghai
July 2013	Minister Plenipotentiary, Embassy of Japan in the United States
April 2016	Director, Foreign Ministry Training Institute
August 2017	Ambassador Extraordinary and Plenipotentiary to the People's Republic of Bangladesh
October 2019	Representative of the Japan-Taiwan Exchange Association Taipei Office
November 2023	Left post as Taipei Representative
Present	Senior Fellow, Sasakawa Peace Foundation

(Source: Sasakawa Peace Foundation Research Fellow Directory / Japan-Taiwan Exchange Association)

Commentary from Representative Director Joji Uramatsu

It is an immense honor to welcome Ambassador Hiroyasu Izumi as our company's Honorary Advisor, and a source of great encouragement for all our staff.

Throughout my career as a reporter at the Mainichi Shimbun, I was deeply engaged in covering the Chinese-speaking world. During that time, I was fortunate to witness firsthand Ambassador Izumi's exemplary work at the forefront of diplomacy in building Japan's international reputation. Through those experiences, I repeatedly came to appreciate the profound weight of "trust" that bridges nations.

As a "former journalist and administrative scrivener real estate company," Yotsuba Real Estate is committed to balancing accessibility with professional expertise, providing comprehensive one-stop services for housing and legal affairs that allow foreign clients to consult with confidence. The spirit of public trust that Ambassador Izumi has safeguarded throughout his diplomatic career is precisely the guiding principle we must place at the foundation of the real estate platform we are now building.

Under the guidance of Honorary Advisor Izumi, all of us will continue to strive toward realizing transparent social infrastructure that earns the trust of our clients, business partners, and the local community.

Future Outlook

With the appointment of Honorary Advisor Hiroyasu Izumi, Yotsuba Real Estate Co., Ltd. will further strengthen the following initiatives:

1. Strengthening Trust Foundation — Deepening real estate transaction models informed by international perspectives, emphasizing transparency and fairness
2. Enhancing Multilingual and International Capacity — Further strengthening our multilingual service capabilities and providing attentive support to foreign resident clients and cross-border transaction needs
3. Building Social Trust Infrastructure — Research and development of next-generation platforms spanning real estate, legal affairs, and finance
4. Expanding Professional Expert Network — Strengthening partnerships with tax accountants, judicial scriveners, social insurance labor consultants, and other specialists to provide comprehensive problem-solving

Company Overview

Item	Details
Company Name	Yotsuba Real Estate Co., Ltd.
Address	Kohinata Yasuda Building 203, 2-5-4 Kohinata, Bunkyo Ward, Tokyo 112-0006
Nearest Station	5-minute walk from Myogadani Station, Tokyo Metro Marunouchi Line
Representative	Representative Director & Licensed Real Estate Transaction Specialist Joji Uramatsu
Phone	03-6161-9428
Business Hours	10:00–18:00 (Closed Tuesdays and Wednesdays)
Business Description	Real estate rental, sales, and management / Multilingual support / Inheritance, wills, trusts, residence status, visas, and legal procedures (Yotsuba Administrative Scrivener Office)
License Number	Tokyo Metropolitan Governor (1) No. 113304
Representative's Background	Former China Bureau Chief, Mainichi Shimbun. Licensed Real Estate Transaction Specialist (Tokyo) No. 293544; Administrative Scrivener Registration No. 25087022; Social Insurance Labor Consultant Examination Passer (October 1, 2025 / No. 202500525)
Official Website	https://luck428.com/
Related Services	Yotsuba Administrative Scrivener Office / Shigyo.com SAMURAI (Professional services booking and matching platform)

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Media Contact for This Announcement

Yotsuba Real Estate Co., Ltd. – Public Relations (Uramatsu)
Kohinata Yasuda Building 203, 2-5-4 Kohinata, Bunkyo Ward, Tokyo 112-0006
TEL: 03-6161-9428
Web: https://luck428.com/
Business Hours: 10:00–18:00 (Closed Tuesdays and Wednesdays)

This release was also distributed via PRTIMES.
https://prtimes.jp/main/html/rd/p/000000002.000176063.html