About

We’re proud to be part of a legacy going back to 1937 when Inosuke Tomita founded Diamond Electric. Continue reading to learn more about our company’s philosophy and history.

Our Philosophy

Health, Trust, and Progress

Diamond Electric gives top priority to trust from our customers and focuses on superb quality. We conduct business activities and product development that are unified with our philosophy of valuing the working of life. Diamond Electric pursues the happiness of all team members and builds a caring and prosperous society based on mutual trust.

We believe that partnering with stakeholders is the KEY to the future.

As we partner, we maintain these values:

  • Health, trust, and progress
  • Community involvement
  • Integrity and accountability
  • Teamwork and mutual respect
  • Open and honest communications
  • Safety and cleanliness

History of Diamond Electric in the US

1990
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Nobu Hashimoto (left) was the first president of DEUS (Diamond Electric United States). In this 1990 photograph, he stands with Rick Bost, former General Manager of DEMCO, in front of a sign announcing the location of the former DEUS headquarters in Dundee, Michigan.

1992
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Michigan and local Dundee officials joined the late Shigeji Ikenaga (pictured second from left), founder and former Chairman/President of Diamond Electric Manufacturing Corporation, Ltd., and his son, Shigehiko Ikenaga (far left), the former DEMCO and DEJP president, on September 29, 1992, for a grand opening ceremony at the Dundee location.

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Company, Michigan, and local Dundee officials planted a memory tree on September 29, 1992, following the grand opening ceremony for Diamond Electric's Dundee location.

1996
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Former DEJP and DEUS President Shigehiko Ikenaga (right) and William Turner, formerly with the West Virginia Development Office, visited the Eleanor Industrial Park location in March 1996, just prior to the official ground-breaking ceremony in April 1996.

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Former West Virginia Governor Gaston Caperton (right) is greeted by the late Diamond Electric founder, Shigeji Ikenaga, as the Governor arrives for the April 9, 1996, groundbreaking ceremony at the Eleanor Industrial Park in Eleanor, West Virginia.

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Former Governor Gaston Caperton congratulates the late Shigeji Ikenaga (left) following the official ground-breaking ceremony for the Diamond Electric West Virginia (DEWV) plant on April 9, 1996.

1997
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Former Governor Cecil Underwood (right) helped Diamond Electric celebrate the start of mass ignition coil production at the Diamond Electric West Virginia plant in May 1997. Former President Shigehiko Ikenaga (left) and Lloyd Ayers explained the production process to Governor Caperton. Lloyd was the first team member hired by Diamond Electric in West Virginia, and he is still employed there. He currently is General Manager of Production.

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The original Diamond Electric West Virginia management team gathered in May 1997 for a photograph with Shigeji and Shigehiko Ikenaga. Three members of the original management team still call Diamond Electric home, and they are Lloyd Ayers (fourth from the left), Jeff Schott (sixth from the left) and Bo Allen (seventh from the left).

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This photo was taken October 5, 1997, when the first Diamond Electric West Virginia employees enjoyed a company-sponsored picnic lunch.

1998
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Diamond Electric U.S. celebrated the grand opening of its Eleanor, West Virginia, plant on May 1, 1998. Former U.S. Senator John D. Rockefeller (seated at far right) was the guest speaker along with former West Virginia Governor Cecil Underwood. Here, former company officials present former Eleanor Mayor John Harris (standing at right) with a $10,000 check for the town council to use to purchase playground equipment at the Eleanor Park.

2002
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Former U.S. Senator John D. Rockefeller, former West Virginia Governor Bob Wise, and Eleanor Mayor Walter (Fred) Halstead helped former Diamond Electric U.S. (DEUS) President Tatsuo Ikenaga (center) and DEUS Production General Manager Lloyd Ayers break ground on February 19, 2001, for the first expansion of the DEUS plant at the Eleanor Industrial Park in Eleanor, West Virginia.

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Painting the eyes of a Daruma Doll is a Japanese custom. Here former Governor Bob Wise starts the process while now retired U.S. Senator John D. Rockefeller and Eleanor Mayor Walter (Fred) Halstead watch during the February 19, 2002, groundbreaking ceremony for the first expansion of the Eleanor, West Virginia, plant. One eye is painted when a project is started, and the second eye is painted when the project is completed.

2004
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Diamond Electric has been recognized for many quality and product delivery awards from all of the major automotive manufacturers during its 20-plus years in the U.S. In 2004, Diamond Electric United States (DEUS) was presented the President's Product Quality Award from Subaru of Indiana Automotive (SIA). Accepting the award was former DEUS President Tatsuo Ikenaga (right) and Steve Carpenter of the DEUS Purchasing Department. Mr. Carpenter is currently the longest-serving Diamond Electric employee in the U.S. He was hired when the company first opened in Dundee, Michigan.

2005
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Diamond Electric U.S. was named the Putnam County Corporate Citizen of the Year in 2005 by West Virginia's Putnam County Development Authority (PCDA), receiving recognition for its outstanding local support of community activities. The late Gary Walton, then President and Executive Director of the PCDA, presented the award to Tatsuo Ikenaga with the help of Ben Vest (right) and Bob Pennington (left).

2006
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The late Shigeji Ikenaga adds his touch July 31, 2006, to the Japanese Daruma Doll during the company's 10th Anniversary celebration, which also served as the grand opening for expansion projects at the Eleanor, West Virginia, plant.

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As part of the Diamond Electric U.S. 10th year anniversary and grand opening celebration, President Tatsuo Ikenaga presented a $10,000 check to Eleanor Mayor Walter (Fred) Halstead for community project use.

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As part of the Diamond Electric U.S. 10th year anniversary and grand opening celebration, President Tatsuo Ikenaga also presented a $10,000 check to the George Washington Middle School Principal and Librarian for use in a school library expansion project.

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July 31, 2006, was a special day for Diamond Electric when the company celebrated its 10th anniversary in West Virginia and also celebrated a grand opening for several successive expansion projects. The late Diamond Electric Japan President and Chairman Shigehi Ikenaga was honored by national, state, and local leaders.

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July 31, 2006, was declared Shigeji Ikenaga Day in Eleanor, West Virginia, and then Governor Joe Manchin, now a U.S. Senator, named Mr. Ikenaga an Honorary West Virginian. This award is given to individuals who are not born in the state, but make significant contributions to West Virginia. At the time, Mr. Ikenaga was the first foreign person to receive the recognition.

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July 31, 2006, was a special day for Diamond Electric when the company celebrated its 10th anniversary in West Virginia and also celebrated a grand opening for several successive expansion projects. The late Diamond Electric Japan President and Chairman Shigeji Ikenaga was honored during the celebration by national, state, and local leaders. Pictured here, then Congresswoman Shelly Moore Capito, who is now a U.S. Senator, recognized Mr. Ikenaga for his success.

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On July 31, 2006, the late Diamond Electric Japan President and Chairman Shigeji Ikenaga, received recognition from national, state, and local leaders, including now retired U.S. Senator John D. Rockefeller, who presented Mr. Ikenaga with special U.S. Senate recognition.

2014
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Governor Earl Ray Tomblin and Department of Commerce Secretary Keith Burdette, among others, gathered at the West Virginia State Capitol on Dec. 15, 2014, to announce Diamond Electric's plan to move its United States headquarters to Eleanor, West Virginia. The move consolidated the automotive main U.S. office in Dundee, Michigan, with the Eleanor, West Virginia, operation, which was already Diamond Electric's largest production facility in the world.

2015
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Diamond Electric moved the Michigan R&D Center from Dundee, Michigan, to Ann Arbor, Michigan.

2018

Consolidating R&D centers and move to Farmington Hills, MI.

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