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New President & COO Announced for Rigaku Americas Holding Company, Inc.

Rigaku Corporation is pleased to announce that, as of April 1, 2015, Mr. Yoichi Yokomizo succeeded Mr. Wes Hardenburg to become President and Chief Operating Officer (COO) of Rigaku Americas Holding Company, Inc. (RAH).

Mr. Hikaru Shimura, Rigaku Corporation Chairman and CEO, said that this change was made "in order to better encourage growth throughout the Rigaku Group and to ensure that we are able to effectively pursue our mission of contributing to the enhancement of humanity through scientific and technological development … his presence will facilitate better communication and a stronger connection between the U.S.-based Rigaku businesses and Rigaku Corporation in Japan.”

Prior to this assignment, Mr. Yokomizo served as Executive VP and General Manager of Rigaku’s Global Sales and Marketing Group. Previous to joining Rigaku in 2012, Mr. Yokomizo amassed a wealth of experience in managing organizations with strong leadership as an “Innovation Leader.” Former positions included being EVP/CIO for Lawson, Inc., President and CEO of i2 Technologies (Japan) and General Manager for IT strategy at Mitsubishi Corporation (Japan). Mr. Yokomizo has B.S. and M.S. degrees in mechanical engineering from Keio University and a M.B.A. degree from the Massachusetts Institute of Technology (MIT).

As of April 1, 2015, Mr. Wes Hardenburg resigned his position with Rigaku to pursue other interests.  Mr. Hardenburg commented that “it was with great pleasure and an honor to work with the team members of Rigaku since December 1991 …  I am looking forward to hearing about Rigaku achieving its goals and wishing a prosperous and exciting future for all.”

About Rigaku Americas Holding Company, Inc.

Wholly owned by Rigaku Corporation, RAH was established as a Delaware corporation in 2014 to consolidate Rigaku operations in North America. Major subsidiaries include: Rigaku Americas Corporation (The Woodlands, Texas), Applied Rigaku Technologies (Austin, Texas), Rigaku Innovative Technologies (Auburn Hills, Michigan), Rigaku Reagents (Seattle, Washington) and Rigaku Raman Technologies (Wilmington, Massachusetts).

About Rigaku Corporation

Since its inception in Japan in 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Rigaku and its subsidiaries form a global group focused on general-purpose analytical instrumentation and the life sciences. With hundreds of major innovations to their credit, Rigaku companies are world leaders in X-ray spectrometry (WDXRF and EDXRF), X-ray diffraction (XRD, SAXS, WAXS), non-destructive testing (NDT), X-ray microscopy (XRM), X-ray computed tomography (CT) imaging, Raman spectroscopy and optics, as well as small molecule and protein crystallography and semiconductor metrology. Today, Rigaku employs over 1,100 people in the manufacturing, sales and support of its analytical equipment, which is used in more than 70 countries around the world for research, development, and quality assurance activities. Throughout the world, Rigaku continuously promotes partnerships, dialog, and innovation within the global scientific and industrial communities. Information about Rigaku is available at


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