About Us

Company Information

As of July 2026

Company Name

Arusen Co., Ltd.

Address

Head Office
3-20-10-603 Higashimukojima,
Sumida-ku, Tokyo 131-0032, Japan
*Please note that the Head Office does not accept mail or parcel deliveries.

First Sales Office (for mail and parcel deliveries)
2F Keiwan Building, 2-2-15 Torigoe,
Taito-ku, Tokyo 111-0054, Japan

Representative

Myungho Lee

Founded

May 2009

Capital

JPY 7,000,000

Certifications and Patents
  • Patents
  • Designs & Trademarks
    • "IONIQUE"
    • "IoniQue-EX"
    • "Dark Ion Catalyst"
    • "Magic Insole"
    • "IONTECH"
    • "SAFETY"
    • "Arusen" and others
  • History of testing and certification by third-party organizations
  • SEK certification previously obtained
Affiliations
Business Activities
  1. Planning, manufacturing, development, sales, and import/export of the Dark Ion Catalyst and related products
  2. Research and development of hybrid smart textiles, and handling of apparel
  3. Development, sales, and import/export of footwear-related products (including Magic Insole)
  4. Joint research and development with the Korea Minting and Security Printing Corporation
  5. Sales and import/export of medical devices (dementia, sleep, and brain-related) and related equipment
  6. Sales and import/export of food, health foods, and related equipment
  7. Sales and import/export of cosmetics and chemical products
  8. Sales and import/export of daily sundries and kitchen goods
  9. Sales via internet, catalogs, newspapers/magazines, and mobile phones
  10. Any and all business incidental to the preceding items
Phone

03-5829-9548

Business Hours

10:00 AM – 5:00 PM

Closed

Saturdays, Sundays, and public holidays

Exterior of the First Sales Office
First Sales Office

Management Policy

  • 1. Accumulation of capital
  • 1. Trust and networking
  • 1. Human resource development
  • 1. Originality

Company Motto

  • 1. Self-awareness
  • 1. Gratitude
  • 1. Cooperation
  • 1. Challenge
  • 1. Sincerity

Global Network

Since our founding, we have built executive-level networks through business dealings and joint projects with major food manufacturers and distribution companies in Japan, Korea, and China. Building on these connections, we are rapidly advancing the social implementation of new materials and our overseas expansion.

President's Message

Photo of Representative Director Myungho Lee

Myungho Lee

Representative Director

The environment surrounding us is changing today at an unprecedented pace. In this uncertain era, a constant commitment to learning and evolving is essential to building a sustainable future.

To respond to this rapidly changing environment, we have identified four key focus areas as our top priorities: Environmental Energy Engineering, Environmental Materials Engineering, Environmental Life Engineering, and Environmental Thinking Engineering, and we continue our research and exploration in these fields every day. As a first step, we are currently devoting our full efforts to R&D centered on the fusion of materials engineering and life sciences, developing businesses that create innovative value.

At the foundation of everything we do is a mindset that moves from CSR (Corporate Social Responsibility) to ISR (Individual Social Responsibility of Influence), together with a strong determination to contribute to human society. Innovation in technology, and a deep sense of responsibility to society — with these two wheels turning together, we will continue to take on new challenges as we work with all of you to open up a prosperous future. We thank you for your continued support and guidance.

> Read Our Story

History

R&D Before Founding (1998–2008)

1998

Encountered photocatalysts and air catalysts, and began research and improvement.

August 4, 2006

Completed improvement development of the Dark Ion Catalyst. Selected as an "Excellent Japan Technology Transfer" by the Korea Technology Exchange, leading to technology transfer (nano-processing).

2006

Began joint research under the guidance of Dr. Hiroo Ninagawa of Aichi Prefecture on the new-concept catalyst.

2008

The "Dark Ion Catalyst" was born through joint research. Proceeded to obtain various evaluation test results and safety-related data.

Founding & Early Business (2009–2011)

May 20, 2009

Arusen was founded. Assumed office as Representative Director and President. Launched sales of the new-concept ionization catalyst, "Dark Ion Catalyst."

From 2009

Began sales to the footwear industry, lodging facilities, general goods stores, home centers, textile companies, and more.

April 14, 2010

Featured in an article by Yonhap News Agency (Korea). (Search terms: "암소이온촉매," "동경이명호")

March 26, 2011

During the Great East Japan Earthquake, imported food and water from Korea and carried out volunteer activities at the Fukushima Iwaki Keirin velodrome.

April 2011 – April 2012

Conducted joint work and experiments on warehouse scouring and functional textiles.

June – December 15, 2011

Conducted joint research with Sharp (Energy-Saving Technology Development Department) on refrigerator filters.

Overseas Expansion & Product Development (2012–2015)

April – July 2012

Partnered with Hwanho Co. in Yantai, China, and completed joint testing of the "Dark Ion Catalyst." Obtained evaluation data on safety and material properties.

July 3, 2012

Completed joint testing with HN Co. in China.

August 29, 2012

Partnered with Company K in Korea, completed joint testing, and began exports.

November 2011 – June 2013

Independently developed the anti-mold agent "Kurikagel."

April – June 2013

Completed domestic testing of Kurikagel in Japan and began domestic sales.

May 2013 – March 2014

Developed a multifunctional ceramic filter.

April 2014

Began sales at duty-free shops.

May 2014

Partnered with Hwanho Co. in Yantai, China, to establish a Kurikagel production line.

November 2014

Third improvement of Kurikagel; began exports to China and Myanmar.

October 2015

Fourth improvement of Kurikagel; began exports to Bangladesh.

May 2015

Commissioned by Fujian Zhongjing Petrochemical Co., Ltd. (Fujian Province, China); concluded an overseas procurement advisory contract for propylene and propane.

September 2015

Established affiliated company Arusen International.

Expansion of New Materials & Textile Business (2016–2019)

April 2016

Developed and imported a conductive fiber combining metal nanofiber technology from BNB Co. (Korea) with the Dark Ion Catalyst. Handled graphene-related fibers and developed recovery fiber, sold as men's underwear through major retailer DH.

April 2017

Second improvement of the multifunctional ceramic filter; expanded sales, mainly at overseas duty-free shops.

July – November 2017

Developed a laundry ball using multifunctional ceramics.

April 2018

Began sales at duty-free shops targeting overseas customers.

March – December 2019

Visited Lotte Chemical (Korea), GS Global, and PETRONAS (Malaysia) for business partnerships related to propylene projects.

COVID-19 & New Product Development (2020–2022)

March 2020

Temporarily suspended the duty-free business due to the impact of COVID-19. Developed, manufactured, and sold related products utilizing the Dark Ion Catalyst.

Began development and sales of "IONIQUE fiber" and related products incorporating the Dark Ion Catalyst.

January 2020 – June 2021

Conducted various evaluation and safety-related tests toward obtaining SEK certification.

June 2021

Obtained SEK certification (renewal later discontinued).

January 2021 – June 2022

Independently developed Magic Insole.

February 2022 – November 2023

Conducted research and experiments on Magic Insole at Shibaura Institute of Technology, Department of Bioscience and Engineering.

IONIQUE Series, Food Business & New Developments (2022–2026)

August 2022 – August 2024

Developed "IoniQue-EX," an improved smart textile version of IONIQUE.

May 2023

Adopted "IONIQUE," combined with the Dark Ion Catalyst, in Magic Insole.

May 30, 2024

First launch of "The Best Shrimp of My Life," sold in 7,300 of 16,500 stores nationwide.

June 2024

Launched "Yawa-Muki Gummy" at Okashi no Machioka.

September 2024

Began sales of the "IoniQue-EX" smart textile, applied to Magic Insole.

October 2024

Launched the MI-system-equipped "Magic Insole Light" for business use.

November 2024

Launched "The Best Shrimp of My Life" at Kitano Ace Super.

January 2025

Launched "The Best Shrimp of My Life" at Hankook Market (Korea Plaza); also sold in connection with Olympic-related events.

May 2022 – November 2024

Jointly developed sandals and leather shoes combining a vibration device with the MI system.

September 2025

Developed "IoniQue-EX Inner." Began sales of sandals equipped with the vibration device and MI system.

January 2026

Expanding applied research and sales of the "IoniQue-EX smart textile" and "Magic Insole."

February 2026

Jointly developed the "PIP Magic Insole" with Pip Co., Ltd. and Nichiman Co., Ltd. Obtained certification as a controlled medical device (development period: 2024–2026).

Major Business Partners, Retailers & Joint R&D

FamilyMart, Dolce, ABC-MART, Don Quijote, Adastria, AOKI, Nichiman, Shimamura, Minoya (Okashi no Machioka), Taharaya (Paseos), Japanese Consumers' Co-operative Union, Scroll, Izumi (Yumetown), Datehaki, Progresso, Aena, Daiko International, REACO (OIC Group), Kanekawa, History Maker Japan, Marina, Toho Remac, JA Zen-Noh Meat Foods, Suzuya, ASK TRADING, Jupiter Shop Channel, Catalog House (Tsuhan Seikatsu), Husky, XPRICE, Tokyo Electric, Halmek, Soichiro, MARS group, Nippon Access, Mitsubishi Shokuhin, Miyata, Angfa, Nikko Medical

Last updated: July 31, 2026

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共同開発・OEMのご相談

スマート繊維「IoniQue-EX」や暗所イオン触媒、真軸インソール/Magic Insoleを活用した新シリーズの企画・試作・量産について、開発初期の構想段階からご相談を承ります。現行素材との比較検討や評価試験の進め方など、まずはお持ちの条件や課題をお聞かせください。

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