Management Team

Sumitani photo 090512bKen Sumitani, President

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Ken Sumitani took over the management of Japan Entry from Jack Plimpton and became its president.

Prior to that, he had been serving as Japan President with responsibility for overall direction and executive recruitment projects. Prior to joining Japan Entry’s consulting team, Mr. Sumitani was Vice President in charge of the 70-person Executive Search Division, Recruit Agent. During his tenure at Recruit, he established and managed its Los Angeles-based subsidiary. Mr. Sumitani graduated with a degree in economics from Keio University.






Yoshi photoYoshio Matsunaga, Managing Director

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Yoshio Matsunaga is in charge of business development activities for clients, ranging from direct sales representative, reseller channel development, strategy making, establishing a Japanese entity, and other day to day activities necessary to run the Japanese business. Mr. Matsunaga has multiple Country Manager roles at technology startups and founded three companies. He graduated from City University of New York Baruch College with a double major in Entrepreneurship and Industrial Organizational Psychology.






Plimpton, JJack Plimpton, Founder & Former President

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Japan Entry is built upon the leadership of founder, Jack Plimpton, former General Manager of Lotus Development Japan, a start-up he developed into a 35-person organization with $10 million in first-year revenues. Lotus Japan went on to sell 20% of the total worldwide volume of Lotus Notes throughout the 1990′s. Mr. Plimpton is completely bilingual in spoken/written Japanese. He holds an MBA from Stanford University, studied at Tohoku University on a Rotary Scholarship, and graduated summa cum laude, Phi Beta Kappa, from Harvard College.






William Lohse, Advisor

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William Lohse serves as an advisor to Japan Entry. He has been an angel investor since 1990. In addition, Mr. Lohse previously was CEO of Softbank Expos where he grew revenues to $200M. He was President of Ziff-Davis Publishing and managed 1,800 employees with revenues of $350M. Previously, he founded Breakthrough Software which was later acquired by Symantec.