・Injection molding of plastics (thermoplastic resin)
・Assembly such as press-fitting, welding, adhesion, and unit assembly
・Mold manufacturing
・Precision measurement

We are capable of integrated in-house production (prototyping-mold making-mass production- delivery).
Our specialty is the mass-production of super engineering plastics, and accuracy control in mass production can be controlled to ±0.05 or less
Our production capacity is 24 hours a day, 7 days a week, from small lots (less than 100 units per lot) to several hundred thousand units per month.

-Ultrafine and ultra-small diameter hole drilling services-
We pursue the limits and possibilities by taking on the challenge of machining with a high degree of difficulty.
We are a small group of elite engineers who are always striving to improve our technology and truly enjoy the excitement of manufacturing together.

• We specialize in precision machining of abrasion-resistant materials.
• We produce products based on client specifications.
• We supply products to every field, including machine tools, semiconductor manufacturing
equipment, analytical equipment, medical devices, and industrial equipment and instrument.

SEP INC. continues to strive for the development of epoch-making products by applying cutting-edge interface and colloid science to the mechanical engineering field. "SEP" stands for Surface Engineering for Plastic.

Kishimoto Industry’s Full Flat Machining technology, which allows us to stably process plastic sheet thicknesses to within ±30μ, enables us to machine plastic to the same level of dimensional accuracy as metal.

Contracted Business:
☞Precision machining of hard and brittle materials, difficult-to-process materials, metals, nonferrous metals, and resins on consignment, as well as unit and equipment fabrication
◆Cutting, grinding, drilling, polishing, single piece, prototype, small lot, mass production
In-house product development, manufacturing and sales business
☞Food processing machines, ultrasonic application equipment, various automated equipment
◆Processing machines, assembly machines, measuring and inspection equipment, conveying equipment

Outline of business
Design, development, manufacturing, and construction (installation) of park facilities, urban environment facilities, steel structures, road and river information panels, lighting towers for various arenas and lighting poles, lighting facilities, small natural energy generation facilities (solar cells, etc.), and aftermarket services
Development, manufacturing, and sale of high-performance rust-preventive coatings
Our Specialty Technologies
We can design, manufacture, install, and perform after-sales maintenance for products such as park facilities, urban environmental facilities, steel structures, lighting towers, lighting poles, and small natural energy power generation facilities (solar cells, etc.) in an integrated manner in-house. We have developed a special rust-preventive technology using conductive polymers to prevent rusting of metals.
Sales Points
We are looking for partners to work with us on our special rust-prevention technology using conductive polymers. Please contact us if you are looking to take on rust issues.
We also have the most extensive experience in animal housing production in Japan.