Foreword"Open innovation, and the fragmented world" ------- p.1
Takami Shimomiya
Feature Articles: Glass and the Coloration1) Possibility of trichromatic coloration of glasses by means of staining ------- p.3
Kohei Kadono
2) Studies on the characterization of sulfur and coloration in oxysulfide glasses ------- p.8
Taro Asahi
3) Consideration on the structure of Fe2+ in system ------- p.14
Hiroyuki Hijiya
4) Near-Infrared Absorption Type Color Compensate Filter ------- p.18
Yuki Shiota
5) Coloration of Li2O-Al2O3-SiO2 glass ceramics by vanadium ion ------- p.22
Shingo Nakane
Lectures for Newcomer and LeadersSimulation technology of glass melting ------- p.26
Kenji Oda
Topics of Meeting on Glass1) Report on the 29th Meeting on Glasses for Photonics ------- p.29
Shotaro Fukumoto
2) Report on the Ceramic Society of Japan Annual Meeting 2019 ------- p.32
Kenji Okada
3) Report on Annual Meeting of the Ceramic Society of Japan 2019 ------- p.35
Hitomi Nakamura
4) Activity report of 'Melting Simulation Study Group' ------- p.37
Yutaka Katayama
Introduction of New Glass Products & Production TechnologyDevelopment of optical isolator using magneto-optical glass ------- p.40
Fumio Sato
Introduction of New Book"Development of Transparent Polymers as Alternative of Glass for Automotive Materials, Edited by K. Nishii" ------- p.43
Katsuhiro Yamamoto
Relative OrganizationThe 8th General Meeting Report ------- p.46
New Glass Forum
History of Research ActivitiesA Life in US universities for a half century Part 3 ------- p.48
Minoru Tomozawa
ColumnThrough experience of the bankruptcy of the company ------- p.51
Atsushi Arai