Diamond Electric Holdings Co., Ltd. is a "MONOZUKURI/manufacturing company" listed on the Prime Market of the Tokyo Stock Exchange.
On October 4th, 2023, our Company released the mid-term management plan "Scrum of Fire". To
embody our new vision "Contribute to the Improvement of Global Environment by Connecting Cars and
Homes with Manufacturing" we have been working to design and develop inverter and electricity
storage systems which will play a central role in the expansion of renewable energy. Our power
conversion technology products will play a critical role as the world moves toward a new normal and
decarbonized society.
In addition, we have been working hard to further strengthen our profit structure and ESG management.
As a public instrument for the greater good, we are dedicated to contributing to the development of our customers and the prosperity of society. This commitment is driven by the continuous improvement of our current business, spearheaded by ignition coils, and founded on President’s Three Major Policies led by the tenet: "1. Meet Customer Quality Standards."
All of our "Comrades,"* shining and racing forward together across our 26 sites and 14 factories in 10 countries, will fully embody our President's Manufacturing Policy: "GENBA, GENBA, GENBA. Do stand in their shoes—Really do." With heart and soul, we will advance through a relentless barrage of effort and continuous challenges.
*Comrades: I intentionally call employees Comrades as they are far more than colleagues or teammates: we have overcome fierce struggles against all odds in the past and now fight for a bright future, powered by our "Scrum of Fire," a symbol of burning passion binding us as one.
YuuRi Ono President and CEO
VideoTo Our Shiny Hustling Comrades
2022.4.9 CEO’s National Anthem Solo for a rugby match - Honoring the Mitsubishi Sagamihara DynaBoars -
*The video from our vault (hidden for 3 years)
2025.2.15 CEO's One-Inch Punch: Power to Breakthrough - Breaking demonstration @Diamond Karate Dojo for Comrades -
July 4, 2025 EMERGENZA JAPAN 2025 ON AIR #8
July 4, 2025 EMERGENZA JAPAN 2025 ON AIR #7
May 13, 2024 President & CEO "Awesome" Message Vol.6 (Chinese)
January 27, 2023 President & CEO "Awesome" Message Vol.5 (Vietnamese)
January 27, 2023 President & CEO "Awesome" Message Vol.5 (Chinese)
June 14, 2022 President & CEO "Awesome" Message Vol.4 (for Suzhou Diamonds)
December 17, 2020 President & CEO "Awesome" Message Vol.3 - Prologue -
December 17, 2020 President & CEO "Awesome" Message Vol.3
July 7, 2020 President & CEO "Awesome" Message Vol.2
April 10, 2020 President & CEO "Awesome" Message Vol.1
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