1. Graduate School of Agriculture; Kitashirakawa-oiwakecho; Sakyo; Kyoto; 606-8502; Japan
2. Shiga Forest Research Center; 978-95 Kitazakura; Yasu; Shiga; 520-2321; Japan
3. Kansai Research Center; Forestry and Forest Products Research Institute; 68 Nagaikyutaroh; Momoyama, Fushimi; Kyoto; 612-0855; Japan
4. Strategic Resource Management Division; Oji Paper Co., Ltd.; 4-7-5 Ginza; Chuo-ku; Tokyo; 104-0061; Japan