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Introducing production system
The Okamura Production System (OPS) is based on the Toyota Production System (TPS) and is Okamura's own developed production method. The Okamura Group views OPS as an ongoing activity in which all employees participate. OPS improvement activities are aimed at enhancing productivity and eliminating the wasting of resources and energy.
Development of the Oppama Plant
We now have plants at eleven locations. Beginning operation in 1958, the Oppama Plant was constructed as a highly efficient plant with the goal of improving productivity. With the introduction of revolutionary redesigned equipment in 1964, it came to operate as the number one automated chair factory in Asia. These days in order to build up production capabilities and enhance cost competitiveness for a future increase in sales of high quality office seating, Okamura undertook the construction of a new production facility at the Oppama Plant, and the work was completed in April 2009.
Our origins: The spirit of the artisan
Our company was started by people who had been involved in the development of Japanese aircraft. In the latter half of the 1940s, they took sheet-metal technology developed in aircraft production and applied it to the production of steel furniture, primarily pipe furniture such as garden tables and chairs.
Application of ergonomics to chairs
With the goal of creating a better chair, we incorporated scientific knowledge into our development in 1961. The result was the Type-22, our first chair created by applying ergonomic principles. It came to be widely used in Japanese offices and became Okamura’s first long-selling product.
Introduction of ankle tilt reclining
Continuing our research into the relationship between people and chairs, we developed the ankle tilt reclining mechanism. A chair incorporating that mechanism, the FC-9 chair, was then produced in 1992. As a mechanism enabling optimum sitting comfort while reclining, ankle tilt reclining was also adopted on subsequent chairs.
Realization of refined styling and advanced engineering
We are taking a variety of initiatives in order to deliver even better chairs to people everywhere. For example, to achieve more refined styling, we have produced a number of chairs, including the Okamura CP, in a collaboration with the world-renowned Italian product design firm Giugiaro Design. In our quest to develop ever more innovative chairs, we are experimenting with a variety of collaborations.
Research into sitting comfort using mannequins
Building on our collaboration in the design and production of a research laboratory experimental chair in 1960, starting in 1961 we began research into muscle-fatigue measurement and body-pressure analysis by providing various types of experimental chairs and by sponsoring research. At that time, we succeeded in obtaining body-pressure distribution charts, muscle activity graphs and other data by taking a scientific approach to sitting comfort.
Application of scientific measurement and design
We carry out scientific measurements of conditions when a person sits in a chair, and using computer analysis, we apply the data to chair design.
Pursuit of ideal Sitting Comfort with a Seating Simulator
In our museum we are demonstrating with an “Ergonomic Seating Simulator” to let people feel comfortable in our ideal seating products. Measuring the distribution of pressure of different body parts (body pressure distribution) when a person sits on a chair allows us to precisely check our ordinary seating posture with measured diagnostic data on a real-time basis. In addition, the various requirements of ideal chairs, which are suitable for the functionality and appearance of the respective clients, may be displayed on the screen by adjusting the height and depth of the seat face, the seat’s reclining angle and other factors.