Old notices
These pages collect together notices posted on the IUCr web site in past years. They are retained for archival interest, but there is no guarantee (or likelihood) that many of the web links found in these notices will still be active.
An-Pang Tsai (1958-2019)
![[An-Pang Tsai]](https://www.iucr.org/__data/assets/image/0006/143637/Tsai-Sendai-B.jpeg)
It is with great sadness that we report that An-Pang Tsai passed away on 25 May 2019 at the age of 60.
He was a professor at Tohoku University, Sendai, Japan, and a leader in the field of quasicrystal and complex intermetallic research. His discovery of most of the known stable quasicrystals has been invaluable in understanding the structure and physical properties of these aperiodic crystals. Professor Tsai received many awards including the Medal of Honor with Purple Ribbon bestowed by the Japanese government.
He will be sorely missed by his many friends and colleagues in the crystallographic community. Our thoughts go to his wife, children and family.
Marc de BoissieuThis note has appeared in the IUCr Newsletter. A full obituary has been published in Acta Cryst. B.
