株式会社Protos News Releases

Amazon Prime Day Sale! OTTOCAST Popular In-Car Gadgets Offered at Special Prices

Protos Inc. (CEO: Takahiro Iwai), which operates the online store "Shounin-ya," will be offering six… · 2026-07-02

[Shonin-ya Spring Sale] In-car gadgets to brighten your drive up to 21% OFF! Sale starts April 10th on Amazon, Rakuten, and Yahoo! Shopping

Protos Inc.'s online store 'Shonin-ya' is holding a 'Spring Sale' starting April 10, 2026, for the s… · 2026-04-10

Popular OTTOCAST Products Up to 14,200 Yen Off! Rakuten Super Sale Starts June 3rd at Shoninya.

Shoninya, an online store operated by Protos Inc., will hold a campaign offering special prices on 6… · 2026-06-03