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Green Battery office

The minds behind the mission.

Energy, real estate, deep tech, and global capital – aligned to eliminate wasted power.

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Representative Director / CEO

Kotaro Okada

Kotaro builds the intersection of energy infrastructure and venture scale. After leading utility-scale solar developments and cross-border real estate transactions across Japan, he founded a Silicon Valley tech startup to drive global market expansion. Today he steers the company mission to build scalable energy-storage systems for a zero-waste grid.

Career
  • Bank of Estate Inc. – Founder
  • Ideal Node Inc. – Founder
  • Utility-Scale Solar & Real Estate – Project Development & Investment
Education
  • Ritsumeikan University – B.A., International Relations
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Director

Yoshihiro Kano, Ph.D.

A physician-scientist turned tech strategist, Yoshihiro bridges high-level research and corporate execution. Following postdoctoral oncology research at Stanford University, he led strategic initiatives within SoftBank Corp.’s Corporate Planning Division. He now spearheads global growth, translating complex technical innovation into market-ready clean energy solutions.

Career
  • Ideal Node Inc. – Director
  • SoftBank Corp. – Corporate Planning Division
  • Stanford University – Postdoctoral Researcher (Oncology)
Education
  • Osaka University Graduate School of Medicine – Ph.D., Gastrointestinal Surgery
  • Osaka University – M.S., Pharmaceutical Sciences
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Chief Financial Officer

Yusuke Kato

Yusuke brings institutional-grade financial leadership honed across Wall Street and Silicon Valley. An alumnus of KPMG, he managed PCAOB compliance, IPO preparation, and U.S. capital markets listings for international Japanese companies. As former Head of Finance for a Nasdaq-listed company, he orchestrated SEC reporting, SOX internal controls, and global equity fundraising.

Career
  • Nasdaq-listed company – Head of Finance & Accounting
  • KPMG – Senior Auditor
  • Cross-Border Capital Markets – IPO & SEC Regulatory Advisory
Qualification
  • U.S. Certified Public Accountant (USCPA)
Inside Green Battery

Our home base in Shibakoen, Tokyo.

ICON PLACE Shibakoen building entrance
Building lobby
Open-plan office
Office lounge
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