New office building built in Kyomachibori, Nishi Ward,
Osaka City, Osaka Prefecture in 1949

Example of keel structure:
Minakamimachi Chubu Junior High School

Front: An IBM RJE workstation featured in
"News from the Computer Room 4”
published in issue 46 of the company newsletter
(January 1975)
Back: Introduction of the sunshine calculation program
featured in "News from the Computer Room 7"
published in issue 49 of the company newsletter
(October 1975)

Left: Daiken Sekkei Osaka Office /
Right: Daiken Sekkei Headquarters (Tokyo Office)

草創期

相次ぐ受注

社の礎

新しい構法

景気拡大

社名変更

本社移転

戦後最大の不況

構造解析技術

収益構造の多様化

空前の好景気期

多数の実績

技術力研鑽

地域密着を強める

七十五周年

DAIKEN SEKKEI over 75 Years

75 YEARS OF HISTORY

Unlock our 75 year corporate heritage
to discover the way forward

Chapter 01

1948 - 1959Cooperation among Fields of Expertise since Our Early Years

Story

Osaka Architecture Co. was founded on Tosabori Street in Nishi Ward, Osaka in 1948 by its three directors, Miyahiko Ikeda, Yoshio Takahashi, and Tokutaro Nishishima. The company made a good start with a continuous flow of orders, and the number of employees grew from nine to 20. In 1949, the following year, the company built and moved into a new office in Kyomachibori. In an era when firms run by individuals were the norm, the three founders pooled their expertise in various technical fields, offering a unique system where a single architecture firm could preside over an entire project. The company created a nationwide operations system during the postwar reconstruction period, laying the foundations for the company’s future.

Topics

1950
Nagoya office opens
1951
Patented the “floating foundation method” for construction on soft ground
1954
Tokyo office opens
1955
Developed the cutting-edge “total welding method”
1956
Kyushu office (formerly the Fukuoka office) opens

Chapter 02

1960 - 1974A New System for Expanding Orders through Brisk Business in Many Fields

Story

When the company made it through its early years into a more stable organization with more than 150 employees, it set up a management platform. Making thorough use of the new construction methods developed earlier, the company accumulated a diverse performance record. In the construction rush boom period leading up to the Tokyo Olympics, it met the demand for new facilities investment in heavy industries such as steelworks and overseas plants, and fielded an increasing number of orders from government offices, housing corporations, trading companies, railways, and other businesses. The Aburatsubo Marine Park Aquarium was planned as an aquarium with high entertainment value, and opened its doors in 1968. In 1971, the company changed its name to Daiken Sekkei in response to changes in the economic environment.

Topics

1963
Joint development with Kubota Steel
Centrifugally cast steel pipes and “G-glass construction method”
1967
Developed the “keel construction method” enabling large-space construction
1971
Company name changed to Daiken Sekkei

Chapter 03

1975 - 1984Recovery from Difficult Economic Circumstances through Self-Reform

Story

After the oil shock, when Japan entered its greatest economic slump of the postwar period, returning to equilibrium from runaway growth, the company structure was reorganized. After recovering design orders at the Osaka office, it became clear that the center of business operations should move from Osaka to Tokyo, and in 1978, the headquarters was moved to Tokyo. The company highlighted its diverse abilities as a general organizing contractor, and increased profits through a move to a more intuitive management system. Facing the difficult economic circumstances of the second oil crisis, in which energy-saving and resource-saving technologies grew worldwide, the company expanded into new fields through the purchase of structural analysis technology for large-scale buildings.

Topics

1982
The International Facilities Design Department becomes an independent department
1984
Yokohama branch office opens

Chapter 04

1985 - 1999Economic Boom Propels Diversification of Profit Structure and Expansion of Business Offices

Story

As Japan gained international competitiveness through the development of high-tech industry, it entered a period of unprecedented economic growth, and Daiken Sekkei built up a diverse performance record as its business expanded to include urban development projects, waste plants, facilities for the elderly and disabled, sports facilities such as gymnasiums and stadiums, pools heated using waste heat, recreational facilities, leisure and theme parks, aquariums, and others. Against the backdrop of increasingly sophisticated industrial structures and an increasingly software-driven society, the company founded Daiken Systems, Daiken Engineering, Daiken Environmental Development, and Daiken Technology Consulting. The company constructed its own buildings for the for the Osaka office and the Tokyo headquarters.

Topics

1987
Fukuoka and Sapporo branch offices open
1989
Hiroshima branch office opens
1990
Sendai and Kyoto branch offices open
Daiken Sekkei Osaka Building construction completed
1993
Plant Facilities Design Department becomes an independent department
1994
Daiken Sekkei Tokyo Building construction completed

Chapter 05

2000 - Amid Social Change, Technology Development and Closer Regional Collaboration

Story

Entering the era of increasingly sophisticated information and internationalization, the company’s business fields expanded further still. On the flipside, the company also continued to express its strengths in specialty fields such as aquariums, medical and welfare facilities, and plants encompassing large interior spaces, completing a wide variety of plans and designs in Japan and overseas. In addition, the company focused on developing and expanding is technologies, through taking on design projects for atrium spaces and sports facilities constructed with wooden materials, and large-scale wood-frame concert halls. As the company expanded nationwide, it developed closer connections with local regions, continuing to build architecture that can be passed on to future generations.

Topics

2000
Registered with quality management system: ISO9001
2001
The Medical Facilities Design Department becomes an independent department
2003
Shizuoka branch office opens
2023
Daiken Sekkei celebrates its 75th anniversary