RTJ-00010This printed matter was made using environmentally-friendly UV ink and paper.Please contact us if you have any questions regarding the contents of this journal.Technical Document Administration Section, Technical Development CenterTel +81-42-359-7869 (direct line)Fax +81-42-359-7463info-journal@rion.co.jpRION CO., LTD.3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japanhttps://www.rion.co.jp/english/Corporate PhilosophyContributing to people, society and the world through all our activitiesQuality of Life Barrier-Free Society Eco-ManagementYou can access the electronic version of this journal from the banner on the front page of our website.https://www.rion.co.jp/english/technicaljournalUse this QR code to access information on our SDGs and social contributions.

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