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Latest update: 06/12/2016 14:38:59

Ono Seiko Co., Ltd.

Our company manufactures ultra-high-precision machined parts in-house, by making use of the skills we have accumulated during the 40 years since our establishment. 

We manufacture precision machine parts. We are strong in designing and manufacturing precision jigs and tools, as well as metal press dies, in addition to metal pressing work, precision machining and grinding, and so on. The skills that have been handed down through the 40 years since our establishment enable us to respond to a wide variety of needs. These skills include ultra-high-precision processing with a tolerance of less than 1μm, and surface roughness of no more than 0.1 μmRz.

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Other presentation

[Company strength]
Our corporate philosophy is “sincerity, enthusiasm, and originality.” Our company has been manufacturing precision machine parts and the related machine parts since 1947. Out basic stance has been to meet customer needs in an exact manner. We particularly excel at designing and manufacturing precision jigs and tools as well as metal press dies. This is in addition to other works such as metal pressing work and precision machining and grinding. We have a wide variety of equipment and technologies at our disposal to meet diverse customer needs in the general parts machining business. 

[Business description]
We offer metal press die manufacturing, and pressing work in general. We machine parts as well as jigs and tools. We can handle processing parts on any scale from low-volume high-mix production to mass production. 

Metal parts processing

[Strength of products/technologies]
Our company supplies parts in a wide range of fields, including those with die technology, and we can process any kind of metals. The characteristics of our technology are as follows. 
(1) We conduct a large part of the manufacturing processes in-house, from die making to parts machining. 
(2) Our company is differentiated in terms of quality, cost, and delivery. 
(3) We are taking on the new challenge of entry into the ultra-high-precision processing field (tolerance less than 1 μm, with surface roughness of no more than 0.1 μmRz). 
(4) We have accumulated 40 years of skills since our establishment.

[Representative's message]
The current situation is that the trend toward local production and local procurement is unstoppable. We will continue to deal with highly difficult machining work in a timely manner as it is domestically in demand. At the same time we will also expand our business activities targeting future dealings with overseas companies. Market cultivation is absolutely essential for our company if we are to pass down our 40 years of skills and technologies and to shift to new fields. J-GoodTech is a wonderful system for that end, and we are willing to overcome any issues that may arise in the matching process. Please let us know if there are any problems. 

[Company structure for market development/overseas expansion]
Our company has concentrated its efforts on machining CFRP (carbon fiber reinforced plastics) as a member of the Tohoku Aerospace Industry Study Group. We have also concentrated on the field of international development as a member of the K-Project. This is a project for manufacturing an accelerating tube cell, which is involved with the ILC (International Linear Collider). We will work on doing business with major companies and overseas expansion. This will involve all our employees, from veterans to young workers, with the flexibility and agility that are expected of an SME. The planning and development group will serve as the point of contact for customers. 

[Awards and media coverage]
Good Design Award (1993).


Acquired ISO 9001/14001 in 2007 (currently being renewed).

[Joint research and development]
We have a track record of delivering our research equipment parts as well as jigs and tools.

[Main Clients / Business History (domestic)]
Companies in the power generation, automobile, and industrial machinery fields.

This company is recommended by the following support organizations.

Tohoku Head Office, SMRJ

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