List of Donors

• ASAHI CARBON CO., LTD.
• Cabot Corporation
• Chemicals Evaluation and Research Institute, Japan
• CHUSEI RUBBER CO., LTD.
• DUMBBELL CO., LTD.
• Gates Unitta Asia Company
• GomunoInaki Co., Ltd.
• Hokusei Rubber Industry Co., Ltd.
• HOTTY POLYMER CO., LTD.
• JEX Co., Ltd.
• Katsura Roller Mfg. Co., Ltd.
• KINUGAWA RUBBER INDUSTRIAL CO., LTD.
• Kokoku Intech Co., Ltd.
• K-THREE CO.,LTD
• KURASHIKI KAKO CO., LTD.
• KYOWA LIMITED
• Mitsui Chemicals, Inc.
• NAIGAI RUBBER INDUSTRY CO., LTD.
• Nichibei Rubber Co., Ltd.
• NIPPON STEEL Chemical & Material Co., Ltd.
• NITTA CORPORATION
• OHJI RUBBER & CHEMICALS CO., LTD. 
• OSAKA SODA CO., LTD.
• OUCHI SHINKO CHEMICAL INDUSTRIAL CO., LTD.
• Sanyo Trading Co., Ltd.
• Seibu Polymer Corporation
• Seiko Chemical Co., Ltd.
• SHIMADZU CORPORATION
• Shin-Etsu Chemical Co., Ltd.
• SUMITOMO RUBBER INDUSTRIES, LTD.
• TOKAI CARBON CO., LTD.
• TOKAI KOGYO CO.,LTD.
• TOKYO ZAIRYO CO., LTD.
• Toyo Tire Corporation
• Ueshima Seisakusho Co., Ltd.
• Yoshino Rubber Industrial Co., LTD.