国内大手スマートホーム事業者が2026年5月、IoT家電と連携した「古銭コレクション専用セキュリティアラーム機能」をスマートホームアプリ（契約者数280万世帯）に追加し、リリース後2週間でコレクター向け申込み数が35,000件を突破した。高額古銭の盗難リスクに対応する専門機能として業界内外から注目を集めている。
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Major Japanese Smart Home Provider Adds Ancient Coin Security Alarm Feature — IoT-Linked Theft Detection and Alert System Accelerates Adoption in Collector Homes
Source: ITTENDO Editorial|Published: May 23, 202612d ago
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Dealers Handling This Category
A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
Auction House
Ginza Coins
Ginza, Chuo-ku, Tokyo
One of Japan's most established numismatic dealers. The scale and variety of their regular auctions is among the largest in the country. Their catalogs are considered a benchmark for market pricing.
Auction House
Japan Coin Auction (JCA)
Tokyo
Holds regular auctions with reliable hammer price data, making it a useful resource for tracking market values. Caters to a wide range of collectors from beginners to advanced buyers.
Auction House
Taisei Coins
Tokyo
A dealer with an international network. Offers advanced services such as consignment to overseas auctions and NGC/PCGS grading submission. Recommended for high-value or internationally recognized coins.