#Japan #Tokyo #MEDIAID #Back Support #Posture Correction

MEDIAID’s Stretch Back Support Secures Patent

In a move that underscores its commitment to ergonomic solutions, Japan SigmaX Co., Ltd., which operates the specialized supporter brand MEDIAID, has proudly announced that its product, Stretch Back Support, has been granted a patent. This innovative device focuses on promoting correct posture while offering comfort, especially for those facing the common challenges of poor posture associated with long hours of desk work and smartphone use.

Patent Overview

• - Invention Name: Posture Correction Device
• - Patent Holder: Japan SigmaX Co., Ltd.
• - Patent Number: Patent No. 7730143
• - Registration Date: August 19, 2025

Addressing Modern Posture Issues

With modern lifestyles increasingly leading to issues like slouching and rounded shoulders, the Stretch Back Support was launched in 2021 as an essential aid to maintaining proper posture. Its unique design not only offers comfort but also efficiently alleviates the physical strain caused by poor posture. Since its launch, the product has gained immense popularity, particularly among the working population, achieving cumulative sales of over 70,000 units by the end of September 2025. The device has established itself as an indispensable posture care item in everyday life.


Image: Breakdown of customers by gender and age who purchased the Stretch Back Support, based on surveys conducted from October 2021 to September 2025.

Unique Features of the Patent and Product

The recently acquired patent focuses on a product structure that harmonizes comfort with effective posture correction, tackling issues faced by traditional posture aids. Conventional products often exert pressure on the sides, causing discomfort and inefficiencies in corrective power. The Stretch Back Support addresses these problems through an innovative shoulder strap arrangement.

Patent Point 1: Efficient Strap Design

The shoulder straps, or shoulder straps, originate from the side of the body and cross at the back, maintaining a structure returning to the front of the torso without applying pressure on the sides. This clever configuration ensures that corrective forces are efficiently transmitted while keeping discomfort at bay.

Patent Point 2: Material Variation for Optimal Performance

The shoulder straps are designed using differing materials based on function; non-stretchable materials are applied where force needs to be exerted (e.g., upper shoulder areas), while stretchable materials are used in other areas to accommodate movement. This blend of materials creates a fit that efficiently communicates the corrective forces needed to help pull the shoulders back in alignment.

Product Information

• - Product Name: MEDIAID Stretch Back Support
• - Retail Price: 3,740 JPY (tax included)
• - Contents: 1 unit
• - Size Range: S/M (60-80 cm), L/LL (80-100 cm)

For further details, check the product link: MEDIAID Stretch Back Support

About MEDIAID

The MEDIAID brand represents a commitment to quality and functionality in supporter production, stems from Japan SigmaX's half-century experience in manufacturing orthopedic support materials, devices, and medical equipment. The company's mission is to ensure that all products meet high standards for various scenarios, both in professional settings and everyday life.


Image: MediaID Brand Ambassador Yuka Kurotani.

About Japan SigmaX Co., Ltd.

• - Location: 1-24-1 Nishi-Shinjuku, Shinjuku, Tokyo
• - Established: June 1, 1973
• - Capital: JPY 90 million
• - CEO: Yosuke Suzuki
• - Total Employees: 246 (as of March 2025)
• - Sales: JPY 14.37 billion (FY March 2025)

Japan SigmaX's business domain encompasses support for physical activities, providing products and services aimed at helping people maintain health and comfort while addressing a wide array of physical challenges. Focusing on orthopedic fields, the company delivers innovative solutions, from various joint braces to cooling systems for therapeutic purposes, and is well-recognized in the sports care sector under its ZAMST brand.

With a commitment to advancing the lives of individuals through thoughtful orthotic design, MEDIAID and Japan SigmaX continue to pave the way in healthcare solutions.