Announcement of Merger of Group Companies "Cartel Co., Ltd." and "Staff Co., Ltd." and Change of Company Name Post-Merger
~Starting Operations as "Ravio Co., Ltd." to Further Expand the System Storage Business~
📋 Article Processing Timeline
- 📰 Published: March 31, 2026 at 22:13
- 🔍 Collected: April 1, 2026 at 13:39 (15h 25m after Published)
- 🤖 AI Analyzed: April 16, 2026 at 23:28 (369h 49m after Collected)
DAIKEN Corporation (Kita-ku, Osaka; President: Masanori Okuda) announces that, with the aim of further business expansion, it has decided to merge its subsidiary, Cartel Co., Ltd. (hereinafter "Cartel"), which handles the sales and construction of system storage, and Staff Co., Ltd. (our sub-subsidiary, hereinafter "Staff"), Cartel's manufacturing subsidiary, on April 1, 2026. The new company name after the merger will be "Ravio Co., Ltd."
[Purpose of the Merger]
Cartel Co., Ltd., a member of our group that handles the sales and construction of system storage for condominiums, collaborates with its manufacturing subsidiary, Staff Co., Ltd., to provide "material-and-construction sales," which means handling everything from the manufacturing of system storage to its installation. The company also boasts stable product supply capabilities through its unique order management system, which provides end-to-end services from order reception, design, manufacturing, to construction, as well as quick and flexible custom order response capabilities. Currently, it holds approximately 40%* of the market share for system storage products in the Tokyo metropolitan area's condominium market.
In light of this, to further strengthen its system storage business, which leverages these unique strengths, DAIKEN invested approximately 800 million yen in equipment in January of this year to increase manufacturing capacity, aiming for further business expansion.
Example of condominium system storage sold by Cartel Co., Ltd.
As one of the next steps to strengthen the business, Cartel Co., Ltd. and Staff Co., Ltd. will merge to establish an integrated manufacturing and sales system. By promoting management and productivity efficiency, and providing higher quality and faster services, we aim to create a structure that can leverage the company's strengths more than ever before, thereby expanding its market share in the system storage market for condominiums in the Tokyo metropolitan area. Furthermore, in the future, by further developing the "material-and-construction sales" model, which is a key strength (handling everything from manufacturing to construction in-house), we will consider expanding operations into new areas in addition to the Tokyo metropolitan area.
*Self-estimated.
[About "Ravio Co., Ltd." after the Merger]
The new company name "Ravio" is a combination of "Ratio," meaning "reason and logic" in Latin, and "Avidus," meaning "inquisitiveness and enthusiasm." It embodies the desire to expand the scope of business more than ever before by creating value while controlling the burning passion within with reason and logic.
For this merger, employees from both Cartel Co., Ltd. and Staff Co., Ltd., which were separate manufacturing and sales companies, took the lead in proposing the new company name and formulating the corporate philosophy, to ensure they can work together as one toward a new stage.
New company logo
[Summary of this Merger]
Effective Date: April 1, 2026
Merger Method: Absorption-type merger, with Cartel Co., Ltd. as the surviving company and Staff Co., Ltd. as the absorbed company.
[Overview of the Merged Company]
Trade Name: Ravio Co., Ltd.
Head Office Location: 1-17-2 Shin-Sayama, Sayama City, Saitama Prefecture
*No change from the current head office location of Cartel Co., Ltd.
Representative: Takuji Kinoshita, Representative Director
Business Activities: Manufacturing and sales of system storage furniture, and design, contracting, and construction of architectural interior works, etc.
DAIKEN Corporation https://www.daiken.jp/
End
[Purpose of the Merger]
Cartel Co., Ltd., a member of our group that handles the sales and construction of system storage for condominiums, collaborates with its manufacturing subsidiary, Staff Co., Ltd., to provide "material-and-construction sales," which means handling everything from the manufacturing of system storage to its installation. The company also boasts stable product supply capabilities through its unique order management system, which provides end-to-end services from order reception, design, manufacturing, to construction, as well as quick and flexible custom order response capabilities. Currently, it holds approximately 40%* of the market share for system storage products in the Tokyo metropolitan area's condominium market.
In light of this, to further strengthen its system storage business, which leverages these unique strengths, DAIKEN invested approximately 800 million yen in equipment in January of this year to increase manufacturing capacity, aiming for further business expansion.
Example of condominium system storage sold by Cartel Co., Ltd.
As one of the next steps to strengthen the business, Cartel Co., Ltd. and Staff Co., Ltd. will merge to establish an integrated manufacturing and sales system. By promoting management and productivity efficiency, and providing higher quality and faster services, we aim to create a structure that can leverage the company's strengths more than ever before, thereby expanding its market share in the system storage market for condominiums in the Tokyo metropolitan area. Furthermore, in the future, by further developing the "material-and-construction sales" model, which is a key strength (handling everything from manufacturing to construction in-house), we will consider expanding operations into new areas in addition to the Tokyo metropolitan area.
*Self-estimated.
[About "Ravio Co., Ltd." after the Merger]
The new company name "Ravio" is a combination of "Ratio," meaning "reason and logic" in Latin, and "Avidus," meaning "inquisitiveness and enthusiasm." It embodies the desire to expand the scope of business more than ever before by creating value while controlling the burning passion within with reason and logic.
For this merger, employees from both Cartel Co., Ltd. and Staff Co., Ltd., which were separate manufacturing and sales companies, took the lead in proposing the new company name and formulating the corporate philosophy, to ensure they can work together as one toward a new stage.
New company logo
[Summary of this Merger]
Effective Date: April 1, 2026
Merger Method: Absorption-type merger, with Cartel Co., Ltd. as the surviving company and Staff Co., Ltd. as the absorbed company.
[Overview of the Merged Company]
Trade Name: Ravio Co., Ltd.
Head Office Location: 1-17-2 Shin-Sayama, Sayama City, Saitama Prefecture
*No change from the current head office location of Cartel Co., Ltd.
Representative: Takuji Kinoshita, Representative Director
Business Activities: Manufacturing and sales of system storage furniture, and design, contracting, and construction of architectural interior works, etc.
DAIKEN Corporation https://www.daiken.jp/
End
FAQ
What is the main purpose of this merger?
The main purpose is to establish an integrated manufacturing and sales system for the system storage business, improve management efficiency and productivity, and expand market share in the Tokyo metropolitan area through high-quality, prompt service.
What are the business activities of the new company 'Ravio'?
It will primarily engage in the manufacturing and sales of system storage furniture, as well as the design, contracting, and construction of architectural interior works. Its strength lies in the 'material-and-construction sales' model, handling everything from manufacturing to installation.
When will the merger become effective?
The merger will take effect on April 1, 2026, as an absorption-type merger with Cartel Co., Ltd. as the surviving company and Staff Co., Ltd. as the absorbed company.