The Black Market | Koyo Orient Japan Co., Ltd.

Hello Everyone! Today at The Black Market, a company specializing in “black materials”, we have conducted a little research project of evaluating the

Discover the world’s blackest permanent marker in a head-to-head showdown of top brands including Sharpie, Tamiya, Pilot, Zebra, and more. This in-depth comparison focuses exclusively on blackness, using scientific measurements of light absorption to determine which marker delivers the deepest, darkest black.

Discover how The Black Market’s innovative, light-absorbing signage materials dramatically boost visibility and engagement at events. Designed with ultra-low reflectivity and rich black contrast, this signage ensures your message stands out—day or night. Whether you’re hosting an interactive pop-up or promoting a luxury product, learn why this material is reshaping how brands and organizers capture attention.

Introducing Musou Black KIWAMI Fabric, the world’s blackest fabric, developed by The Black Market. This article presents its application as a bla

Spruce up your interior space with custom-made world's blackest art panels!

Musou Black continues to play a big role in Japan’s space development efforts, including the Jasmine Project. Following the success of the IR Flock Sheet in JAXA’s darkroom for star tracker testing, Fineshut KIWAMI is an indispensable anti-reflection material in astronomical telescopes.

Learn how we're helping Automation Logistics with the World's Blackest AR Markers!

Read how Musou Black is utilized as anti-reflective materials in star tracker darkrooms, telescopes, and cameras for observing space and astronomical events!

Putting Musou Black to the Oddy test for Museum Display Use!

We are excited to share how our infrared light absorbing product is contributing to Japan's space development with star tracking!