Kajioka, Toshiyuki http://orcid.org/0000-0002-5863-0393
Kanai, Toshimasa
Ikegami, Koji
Kozuka, Hiromitsu http://orcid.org/0000-0002-3385-215X
Article History
Received: 1 July 2021
Accepted: 8 October 2021
First Online: 28 October 2021
Compliance with ethical standards
:
: T. Kajioka, T. Kanai, and K. Ikegami are employees of Nippon Electric Glass Co., Ltd.