Hedell group ltd.

Partner

Ikkei Matsuda

As Managing Director of SARR LLC, Ikkei specializes in commercializing research outcomes, regional revitalization, entrepreneur development, and compact smart cities.
He has served as Japan Advisory Partner at Benhamou Global Ventures, based in Silicon Valley, Israel, India, and France and is Advisor for the Osaka Expo 2025 Osaka Pavilion and COO of Digital Platformer, providing digital regional currency platforms.
He is also Co-founder of Soramitsu, developing world-class blockchain technology.

Yuto Tanaka

Born on February 23, 1992, from Osaka Prefecture.
Developed a file-sharing system using Gnutella PP at 14 and sold the business. Graduated from the National Defense Academy with a major in Civil Engineering (awarded Best Thesis). Joined the Japan Ground Self-Defense Force after graduation.Specialized in information strategy and cybersecurity, with over 10 years in Red Team Operations. Provided various companies with security measures, hacking method analysis, and service robustness enhancements across web, software, and hardware domains.
Extensive experience in due diligence and advisory for civilian technology companies.Developed and operated the social shopping app “HAKOBIYA®,” which had 150,000 members but was halted due to the COVID-19 pandemic.Renamed his company to Fore- Inc. in 2021, focusing on cybersecurity and AI-related businesses.

Current positions:
・Cyber Intelligence Advisor to former Deputy Minister Toshi Fujimaru
・Cyber Intelligence Head under former Minister of State Yosuke Tsuruho
・Professor and Dean of the IT Faculty at Zuitan University in Da Nang, Vietnam.

Takashi Yamaguchi

Architect and architectural theorist, head of Yamaguchi Takashi Architectural Research Institute.Holds a PhD in Engineering from Kyoto University, specializing in Architecture.Doctoral thesis on “Peter Eisenman’s Architectural Theory - Exploring Key Concepts of Diagram (subject, object).” Graduated from Kyoto University’s Faculty of Engineering, Department of Architecture.After working at Tadao Ando Architect & Associates, he established his own practice.Known for works that evoke a serene sense of sensitivity and intelligence.Has exhibited as an invited artist in France, Italy, Germany, Finland, Romania, Peru, China, and other countries.Lectured and taught design at prestigious institutions such as Paris La Villette School of Architecture, Milan Polytechnic, Tsinghua University, Tongji University, Princeton University, and MIT.Served as a visiting researcher at Harvard University and a visiting professor at Columbia University and the University of Tokyo.

Awards:
Selected for the 18th SD Review
Asakura Prize (1990)
Japan Architectural Design Society Award (2018)
Benedictus Award (2001)
Barbara Cappochin Prize at the Padua International Architecture Biennale (2005)
Silver Prize in Public Relations at the World Media Festival (2007)

Notable Works:
Toseian at Reigenji Temple (1998)
Shikodo at Zuizenji Temple (2000)
Metal Office (2004)
Parametric Fragments (2011)
Publications:
“Network Practices” (translated, 2014)
“DIAGRAM-SIDE OUT” (2016)
“ROBOTECTONIC” (2020)

Nahoko Takuwa

Nahoko graduated from Mukogawa Women’s University with a degree in Architecture. She worked in residential sales and design at Sekisui House, Ltd. and in recruitment and organizational consulting for foreign IT and consulting firms at Pasona Inc., where she won the company MVP award and helped launch new departments. At Speee Inc., she launched new DX (Digital Transformation) projects for the real estate industry, promoting AI adoption, and also received the company MVP award while managing teams.
Currently the CEO of Jatek Inc., she supports the launch of new businesses in healthcare, pharmaceuticals, HR, and events startups domestically. Internationally, she assists Japanese companies and government agencies entering the Indian market, working as a project manager with local Indian teams on digital marketing. Experienced in retail, consumer goods, manufacturing, gaming, and travel, Nahoko excels in service rebranding and marketing strategy to create marketable services.

Ryo Sasada

In 1997, founded S.R.S. Co., Ltd.
Established Sakura Internet Inc. in 1998.
Served as President and CEO of Sakura Internet Inc. at the time of its listing in 2005.
Left Sakura Internet in 2007.
Became President and CEO of Plus One Co., Ltd. in 2007 (current position).
Appointed Director of Cowry Co., Ltd. in 2018 (current position).
Appointed Director of Quantumesh Co., Ltd. in 2023 (current position).
Appointed Director and CTO of Future Co., Ltd. in 2023 (current position).
Since the days at Sakura Internet, has a proven track record of developing over ten data centers, rental servers, and applications both domestically and internationally. Currently, as the President and CEO of Plus One Co., Ltd. and an active participant in various IT ventures, engages in a wide range of activities from IT infrastructure development to service and application development. Capable of providing end-to-end support in directing both hardware and software development essential for global business operations, as well as managing teams and nurturing talent.

Sachiko Ashida

Sachiko graduated from Konan Women's University with a degree in English Literature. She then completed business courses at The College of Central London and obtained a Japanese teacher qualification from IHL, after which she worked at Tokyo Mitsubishi Bank's Americas Planning Office, handling Financial Services Agency and FRB audits, subsidiary management, and intranet administration.

After returning to Japan, Sachiko became the Tokyo Representative for AIMAC, an Asian infrastructure investment advisory firm led by Koji Kashiwaya, previously the Vice President at the World Bank. Her role involved IR, shareholder meetings, project management, and liaison duties, and she successfully completed all projects before the financial crisis in 2008.

Currently, she serves as a director at MORABU HANSHIN Industry Co.,Ltd., and as the president of Morabu Kanzai Co., Ltd., specializing in liaison and government relations.

Yuuki Yoshiyama

After founding and transfering a business while at university, Yuuki engaged in new business development and corporate planning at a publicly listed company. Following his tenure as COO at a startup, he ventured into entrepreneurship. Yuuki now serves as an external advisory board member, director, and consultant for publicly and private companies in various industries, from management, HR, to marketing.

In the HR field, he conducts over 200 days of corporate training annually, focusing on organizational activation, operational improvement, and project consulting. He also supports recruitment for over 200 companies each year and collaborates with national universities on initiatives to enhance business skills for working adults.
In digital marketing and content development, Yuuki leads projects encompassing web, social media, VR, XR, AI, crypto, and NFTs.

In event production and brand consulting, he has directed global events in Japan and produced a number of events in music, fashion, culture, and food entertainment. Recently, he has focused on content planning and production targeting ultra-high-net-worth individuals. Yuuki has authored books with total sales of 900,000 copies and has been selected for the 2025 Osaka Expo Yumeshima pilot project.

Ryoma Abe

While studying sociology at Waseda University, Ryoma started a business, joining a major tutoring school franchise and expanding it to four locations. He also joined a major buyback store franchise, growing it to three locations. To address challenges he faced as a franchisee, he then established a franchising headquarters for a teeth whitening salon, successfully increasing the number of franchise stores to 23 in a short period.

In June 2023, he sold his company and is now focused on enhancing the quality of domestic franchise businesses. He is simultaneously working on headquarters development for six companies and franchise development for twelve companies.

Additionally, Ryoma participates in recruitment and store marketing consulting for several companies, including Japan’s largest fitness company. He excels in franchise development, improving headquarters functions, risk management, business revitalization, and consulting. Ryoma has joined Hedell Group as a specialist in developing franchise business models.