*Hideo Kato¹, Yoshitaka Kubojima¹, Satomi Sonoda², Tadashi Hara³ (1. Forestry and Forest Products Research Institute, 2. Polytechnic University, 3. Kochi University)

*Daisuke Oikawa¹, Humihiko Gotou¹, Ryu Noda², Yukari Aoki¹ (1. AKITA University Graduate, 2. Institute of Wood Technology, Akita Prefectural University)

*Tadashi Hara¹, Toshiki Matsufuji¹, Riku Ohara¹, Hideo Kato², Yoshitaka Kubojima², Satomi Sonoda³ (1. Kochi University, 2. Forestry and Forest Products Research Institute, Japan National Research and Development Agency, 3. Polytechnic University of Japan)

*Takumi Murata¹, Atsunori Numata¹ (1. Tobishma corporation)

*Hideyuki Hirasawa¹, Shingo Kato², Yukie Kikuchi¹, Jun Tonuma³ (1. National Institute of Technology, Hakodate College, 2. Toden Sekkei Co.Ltd., 3. Tonumaiwasaki Co.Ltd.)

*Hiroshi Watanabe¹, Tatsuya Shimozuma¹, Shosaku Ohtonari¹, Yukihiko Katagiri² (1. Fukuoka university, 2. Fukuoka Pref.)

*Akito Murano¹, Atsunori Numata², Ayao Kimura³, Chihiro Kayo⁴, Mayako Ueda⁵ (1. Toyo University, 2. Tobishima Corporation, 3. JR Soken Engineering, 4. Tokyo University of Agriculture and Technology, 5. Japan Cross Laminated Timber Association)