GROUND - Key Persons


Atsumi Oku

Job Titles:
  • Director
Atsumi Oku joined Nichimen Corporation (currently Sojitz Corporation) in 1991 and engaged in corporate sales, business development and marketing operations. After joining Rakuten Group, Inc. in 2008, advanced the development of strategies for overseas business development and the acquisition of European companies as the General Manager of the Global Strategy Department and the General Manager of the EU Business Management Office. In 2010, led PMI as CSO and COO of PriceMinister S.A.S. (currently Rakuten France S.A.S.), an acquired company. In 2020, became an Executive Officer of Rakuten Mobile, Inc., where he has since been involved in strengthening sales and marketing and BCP. For many years, he was involved in business development and new market development on a global scale, and also contributed to the management of an overseas company as COO. Joined GROUND Inc. in 2022.

Daizo Nakajima

Daizo Nakajima has been involved in developing inventory management, delivery management and customs clearance systems in the warehouse transportation industry since 1997. He joined Saison Information Systems Co., Ltd. in 2001 and was assigned to be a project manager for large-scale SCM systems such as EDI focusing on logistics systems. Since joining GROUND Inc. in 2016 during its start-up period, he has engaged in the planning and development of all software developed in-house, including Intelligent EYE, the predecessor to GWES. He has served as Senior General Manager of the Development Division since 2021, as an Executive Officer since 2022, and became Director in 2024. He holds qualifications such as Certified Logistics Master and Database Specialist.

Hiroki Yoshino - EVP

Job Titles:
  • Executive Vice - President
Hiroki Yoshino joined Nippon Shuppan Hanbai Inc. in 1997. After working for Rakuten, Inc. and SIGMAXYZ Inc, he became Director of Rakuten Logistics, Inc. in 2011 and Representative Director of Logiform Inc. in 2012. He has been consistently engaged in the field of logistics, including strategy, process and service design and cost optimization. In 2014, he became Executive Officer and General Manager of the Logistics Department of MonotaRO Co., Ltd. He built a network of logistics bases, including the establishment of multiple large-scale logistics centers, promoted automation, including the introduction of a total of more than 1,200 AGVs, and led the overall implementation of operational functions such as demand forecasting, inventory placement and customer support. Most recently, he contributed to the concept for and basic design of a next-generation logistics center that utilizes new automation technology. Joined GROUND Inc. in 2024.

Ken Sasaba

Job Titles:
  • Director, Audit & Supervisory Board Member

Kosuke Ito

Job Titles:
  • Executive Officer / Senior General Manager, Administration

Ryusuke Shinagawa

Job Titles:
  • Executive Officer / Senior General Manager, Solutions

Shinichiro Kato

Job Titles:
  • Executive Director, the Japan Third Party Logistics Association / Former President, TOYO KANETSU K.K

Yoshikazu Yamashita

Job Titles:
  • Manager of Technical Section, the Japan Institute of Material Handling