Nigiri no Tokubei and Kaisen Atom Expand Morning Service: Opening at 10:00 AM Daily from July 18 to August 31, 2026

Atom Co., Ltd. (Headquarters: Yokohama, Kanagawa Prefecture; President and CEO: Takeshi Ueda), part of the Korowaido Group, will implement early morning openings at 10:00 AM—up to 60 minutes earlier than usual—at all locations of its conveyor belt sushi brands, "Nigiri no Tokubei" and "Kaisen Atom," from Saturday, July 18, 2026, to Monday, August 31, 2026.

This initiative aims to enhance customer comfort and convenience by expanding available visiting hours. With another summer of extreme heat expected—increasing the risk of heatstroke—the company is extending operating hours to allow guests to enjoy dining out during cooler morning hours. We encourage customers to take proper heatstroke prevention measures while enjoying delicious summer meals at Nigiri no Tokubei and Kaisen Atom.

Overview of Expanded Morning Hours

Period: July 18, 2026 (Sat) – August 31, 2026 (Mon)

Participating Stores: 36 Nigiri no Tokubei stores and 9 Kaisen Atom stores, totaling 45 locations

※ Excluded: Nigiri no Tokubei Tomita, Tenno, Fusou, Seki, Kuwana, Imise, and Inazawa stores

※ Information as of July 16, 2026. Subject to last-minute changes or cancellation.

Implementation: Stores will open daily at 10:00 AM during the period—up to 60 minutes earlier than usual.

Store Hours: Available via the links below (PDF files)

Details for Nigiri no Tokubei

Details for Kaisen Atom

About Nigiri no Tokubei and Kaisen Atom

＜Nigiri no Tokubei＞

Nigiri no Tokubei operates 43 stores primarily in the Tokai region, offering a conveyor belt sushi experience centered on "vitality," "seasonality," and "tradition." With energetic service and bright smiles, the brand serves authentic sushi crafted using time-honored techniques and fresh, carefully sourced ingredients. Highlights include premium bluefin tuna, seasonal seafood, and traditional preparation methods.

• Website: https://www.nigirinotokubei.com/

• X (Twitter): https://twitter.com/tokubei1971

• Instagram: https://www.instagram.com/tokubei1971/

Nigiri no Tokubei Brand Logo | Store Exterior Image

＜Kaisen Atom＞

Kaisen Atom operates 9 stores across Fukui Prefecture, offering a conveyor belt sushi experience that highlights local ingredients. In addition to staples like bluefin tuna, the menu features seasonal items and Fukui specialties such as "yaki-saba" (grilled mackerel), "kurenai-zuwai crab" with its delicate texture and mild sweetness, and "buri tekka maki" (yellowtail and shiso roll). The restaurants also serve dry sake from Fukui, perfectly paired with sushi.

• Website: https://www.kaisenatom.com/

• X (Twitter): https://twitter.com/kaisenatom

• Instagram: https://www.instagram.com/kaisenatom/

Kaisen Atom Brand Logo | Store Exterior Image

Introducing the Atom App

The Atom App integrates six brands: "Steak Miya," "Kalbi Taisho," "Gankotei," "Nigiri no Tokubei," "Kaisen Atom," and "Katsu Toki."

With a single app, users can manage brand information, receive coupons, and use the "Atom Unified Visit Point Card."

Earn 10 points per visit by scanning a QR code in-store after payment. Collect 50 points to redeem a 500-yen coupon usable at any Atom Group brand. For details on point accrual and terms, please check the app. Download now for a more convenient and rewarding dining experience.

Atom App – Atom Unified Visit Point Card

Download Here