*Yoshiyuki Yonezawa¹, K. Nakayama¹, R. Kosugi¹, S. Harada¹, K. Kojima¹, T. Kato¹, H. Tsuchida², T. Kimoto³, H. Okumura¹ ( 1. National Institute of Advanced Industrial Science and Technology(AIST)(Japan), 2. Central Research Institute of Electric Power Industry(Japan), 3. Department of Electronic Science & Engineering, Kyoto University(Japan))

*Satoshi Asada¹, Mitsuaki Kaneko¹, Jun Suda¹, Tsunenobu Kimoto¹ (1. Kyoto Univ.(Japan))

*Edward Robert Van Brunt¹, Sei-Hyung Ryu¹, Michael O'Loughlin¹, Brandon Passmore¹, Zach Cole¹, Adam Barkley¹, Shadi Sabri¹, Daniel J. Lichtenwalner¹, Brett Hull¹, Kraig Olejniczak¹, Scott Allen¹, John Palmour¹ (1. Wolfspeed, A Cree Company(United States of America))

*Kazuya Konishi¹, Kenji Hamada¹, Hiroaki Okabe¹, Yusuke Miyata¹, Hiroki Niwa¹, Kohei Ebihara¹, Kotaro Kawahara¹, Naoyuki Kawabata¹, Shingo Tomohisa¹, Naruhisa Miura¹ (1. Mitsubishi Electric Corporation(Japan))

*AKIHIRO KOYAMA^1,2, Yuji Kiuchi^1,3, Tomonori Mizushima^1,4, Kensuke Takenaka^1,4, Shinichiro Matsunaga^1,4, Mitsuru Sometani¹, Koji Nakayama¹, Hitoshi Ishimori¹, Atsuko Kimoto¹, Manabu Takei^1,4, Tomohisa Kato¹, Yoshiyuki Yonezawa¹, Hajime Okumura¹ (1. AIST(Japan), 2. Mitsubishi Electric Corp.(Japan), 3. New Japan Radio Co. Ltd.(Japan), 4. Fuji Electric Co. Ltd.(Japan))