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Our Products

"Protecting lives, one mask at a time, with quality you can trust."

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Surgical Mask YS

"A natural fit with high protection and comfort"

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3D Mask YS

"3D face-fit design for secure comfortable, and easy breathing"

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Ease Mask Zero

"Anti-Fog" Premium fit design to minimize gaps and ensure superior protection.


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Cleanroom Mask YS

"Lint-free and Smooth texture" Design for Cleanroom

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Charcoal Filter Mask YS

"4-Layer protection with activated carbon for odor control and clean breathing"

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Surgical Mask DS

"Standard grade surgical Mask with proven performance"


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3D Baby Mask

Safe. Breathable protection designed for little ones.

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Sleep Mask 3D

"Ultra-light 3D design for natural comfort and 99% light blocking"
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Disposable Head Cap

"A hygienic, lightweight, and breathable cap, designed to prevent hair and foreign matter from contaminating products."

About Us

Learn More About Our Team and Mission

Founded in 1950, Yokoisada Company, Limited has been manufacturing and selling masks under the "Nippon Mask®" brand for over half a century. Our strength lies in our diverse lineup and our involvement in all aspects of production, from planning to delivery. As a manufacturer, we are committed to providing "products that customers can use with peace of mind and confidence."

Our manufacturing process is designed to give shape to customer needs through centralized management and integrated production. We maintain a high-quality production environment, based on rigorous process control, capable of handling small lots.

Utilizing fully automatic machinery that minimizes human contact, we ensure low defect rates and stable, hygienic production. Our production is managed in a controlled room until final commercialization. Owing to our extensive history and high reliability, we welcome inquiries about OEM production for novelty items, private brand goods, and various types of masks. Learn More About Us.

Certification

"Our company has earned ISO 13485 certification, demonstrating our commitment to quality and excellence in all aspects of our operations."

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