According to a radio program, Japan's first accordion curtain (folding-door, accordion door) was released by Tachikawa Blind in 1964. It is also used as a partition in modern times.
So I briefly researched the history of accordion curtains. The site below has a little history.
https://www.diy-shop.jp/accordion-door/about.html
It seems to be called folding-door in English.
ラジオ番組によると日本初のアコーディオンカーテンが1964年にタチカワブラインドから発売された。それから現代も間仕切りとして使われている。
そこでアコーディオンカーテン(アコーディオンドア)の歴史について簡単に調べた。下記のサイトでちょっとだけ歴史に触れている。
https://www.diy-shop.jp/accordion-door/about.html
英語ではfolding-door と言うらしい。
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リンクしたところは日本語のみ。その一部を英訳してここに記す。
The link is in Japanese only. A part of it is translated into English and written here.
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The accordion door and accordion curtain, which are movable partitions, are evolutions of the ancient Japanese fusuma.
In the Heian period, aristocrats used screens, folding screens, and blinds to partition spaces and blindfold. Under such circumstances, the “Fusuma” was invented.
The "sliding door", which is unique to Japan, can be said to be the original form of "partitions" such as accordion doors.
