President and Representative Director

Hideaki Yamamoto

• After working in corporate sales at Daini-Denden (now KDDI), he established his own company and became the head of the sales promotion department of a major house builder, becoming number one in Japan with annual sales of 1.2 billion yen.
• He then made a breakthrough in the home remodeling business.
• During the course of his remodeling business, he conducted extensive research to prevent rust and mold from forming on water use areas and exterior walls, and succeeded in developing our original glass coating agent HardoLass.

Executive Director

Masanori Ikeda

• After graduating from university and working in sales in the finance and service industry, he joined Yamamoto Coating Ltd. in 2002, the predecessor of Yamamoto Holdings Co.
• He was involved in the establishment of the glass coating division and group companies, and is currently active in a variety of fields, regardless of industry or sector, mainly in the management of the glass coating agent HardoLass, as well as in sales and sales promotion.
• He is energetically engaged in corporate activities with the belief that “the glass coating agent HardoLass is useful to the world”.

Director and CFO

Tsutomu Ando

• After graduating from university, he worked for 12 years at a securities company, mainly in IPO business. During his tenure, he was involved in the realization of IPOs for several companies, including emerging ventures, university-launched ventures, and fund deals.
• After that, he moved to an operating company as the main person in charge of IPO preparation. Utilizing his experience at a financial institution and his knowledge of the market, he led the company’s listing on the Tokyo Stock Exchange Mothers market.
• He joined HardoLass in January 2022 and is in charge of corporate affairs.

CSO

Michi Shimoyama

• After graduating from university, she worked for 20 years during the IT revolution, working for a major telecommunications carrier and a broadband carrier before becoming a director at a foreign PC manufacturer. After that, she started a consulting company to support venture companies and their overseas expansion, and became a representative director of the company.
• At the same time, she served as a director of a U.S. company and an Asian company. In Japan, she has served as a director, auditor, and advisor in the human resources, food, logistics, and education industries. She also actively participates in humanitarian assistance overseas.

Outside Director Attorney at Law

Hideaki Numai

• After registering as a lawyer in 2010, he joined Shuhei Yoshida Law Office in 2011.
• In 2013, he obtained a decision from the Second Petty Bench of the Supreme Court (July 12, 2013, Minshu Vol. 67, No. 6, p. 1255), which is considered to have important significance for correcting errors in property tax in practice, which organized the framework for judging the illegality of determining the registered value of fixed assets.
• Joined Nijubashi Law Office in 2014.
• Appointed as a director of the Sozei Soshou Gakkai (Tax Litigation Society) in 2015.
• In 2016, he joined the management of Komatsu Sogo Law Office (renamed Kotohira Sogo Law Office in November of the same year).
• Currently, he is involved in all aspects of real estate legal affairs with real estate companies as his main clients. Most recently, as an expert in negotiating property tax reductions, he has handled many cases of various sizes from funds and real estate companies.

Outside Director

Shigeru Shiina

• After graduating from university, he worked on AI research at NEC’s Central Research Laboratory, where he published many papers and obtained patents.
• After that, he has been providing AI-based DX consulting services to large companies, and has served as a representative of a major consulting firm.
• Currently, he has established companies in Singapore and London in the field of blockchain. He is the chairman of the board of directors.
• He was also involved in the preparation of the “NFT White Paper” compiled by the LDP NFT Policy Study PT.

Outside Corporate Auditor

Motoji Matsuo

• He has in-charge experience in statutory and voluntary audits for manufacturing, telecommunications, cable TV, real estate, construction, leasing, amenities (golf courses, hotels, etc.), and electrical businesses.
• Experienced in supporting preparation of consolidated financial statements and disclosure documents.
• Experienced in financial DD, business DD, and business revitalization plan preparation for corporate revitalization. Experienced in both private and legal liquidation.
• Experienced in FA, financial DD, business DD, projection creation for M&A, and creation of 100-day plan as PMI. Experienced also in M&A consulting for listed companies.
• Calculation of stock price.
• Venture start-up support.
• New business start-up support.

Director of Operations

Kenji Ishida

• Hosei University, Department of Human Environment.
• Worked in outsourcing for a major telecommunications company and a city bank to execute projects.
• In 2010, he joined Yamamoto Holdings Corporation, the predecessor of HardoLass Holdings Co., Ltd. While working as a sales representative, he was involved in a wide range of operations including the launch of new stores, the human resources department, the quality department, and the sales promotion department. He worked as a business manager in the construction and remodeling division for five years before moving to his current position.
• Above all, he engages in sales activities with the mindset of “building a relationship of trust with customers”.

General Manager, R&D Dept.

Takashi Naito

• Completed a Master’s program in Applied Science at the Department of Engineering, Keio University.
• Upon university graduation, he joined a research laboratory at a leading electronics manufacturer. He participated in the development of new technologies related to inorganic materials, particularly glass materials, and their application to products. He has extensive knowledge and experience in product development, productization, and commercialization. During his tenure, he has filed more than 800 patent applications, including joint and foreign applications.
• He holds a Doctorate in Engineering from the Department of Materials Science and Creation, School of Interdisciplinary Science and Engineering at the Tokyo Institute of Technology.
• As the leader of HardoLass R&D, he is responsible for driving further technological innovation and the development of new materials.

Director, R&D Dept.

Katsuya Okamura

• Graduated from the Department of Applied Chemistry, School of Engineering, Keio University.
• Joined one of Japan’s leading integrated aluminum manufacturers. During his tenure in the Development Division, he launched several new product and market development projects, and was also involved in infrastructure operations for the construction of the company’s internal network.
• In 2011, he was appointed President and Representative Director of Aluminum Wire Rod Company Ltd. and made a major contribution to the growth of the automotive aluminum wire business for EV hybrid cars.
• He is in charge of driving new HardoLass product development projects.

Researcher, R&D Dept.

Shogo Hioki

• Completed a Master’s program in Materials Control Engineering at Nagoya University.
• Upon completion of university, he joined a major chemical manufacturer. He contributed to several projects at establishing fundamental technologies for next-generation organic materials, and was involved in basic research and development.
• Subsequently, at Waseda University, he made significant contributions to the research and development of ammonia synthesis catalysts, as well as to the establishment of evaluation methods.
• He is currently responsible for basic research and development of new materials for HardoLass products.

Technical Advisor

Tomoji Oishi

• Completed a Doctoral program in Chemistry at the Graduate School of Science, Nagoya University.
• After completing his university studies, he joined the Hitachi Research Laboratory at Hitachi, Ltd. He served as a senior researcher in the Electronic Materials, Energy Devices, and Imaging Devices research departments, while also participating as a committee member in various technical, research, and educational committees, including the Chemical Society of Japan, the Ceramic Society of Japan, the Fine Ceramics Society of Japan, and the New Glass Forum.
• Following his tenure at the Department of Applied Chemistry, School of Engineering, at the Shibaura Institute of Technology, he now holds the title of Professor Emeritus.
• He serves as a technical advisor to the Company, holds a Doctor of Science degree, and is the author of numerous patents, books, and papers.