Sheet Metal Working

Associating Company
Yoshimasu Seisakusho Co., Ltd.
(JIS Q 9100 / Nadcap / ISMS certified)

Employing the highly skilled expertise and latest models of laser, servo press and punch press machines, the company provides the latest technology for forming processes on hard-to-machine materials such as stainless steel, ti-alloy and ni-alloy.

  • • TIG welding on inside diameter
  • • Welding of titanium by argon chamber
  • • Precision press forming within 0.05mm
  • • Hot forming of titanium alloy
  • • Expand forming and curl forming
  • • Precision Louver forming of cylindrical shapes

Electrical Discharge Machining (EDM) / Water Jet

Associating Company
H-A-T Co., Ltd.
(JIS Q 9100 / ISO/IEC17025 certified)

The company provides EDM, which are cooling hole and diffuser hole machining for turbine blade, turbine nozzle, Shroud, and Chamber. Water-Jet and 5-axis MC machining of Nickel and Titanium alloy are performed.

  • • There are 3 units of 5axis-small hole EDM processing machine in the factory. The company is good at shape hole drilling by simultaneous machining of shape processing and cooling hole.
  • • The company deals with rotating bodies that are aerospace parts, and the machine has rotational specifications.
  • • All processing, such as slit processing for shroud and drilling, is performed by designing and manufacturing from processing jig.
  • • The company also provides the machining of CMC, CFRP, Gr, and Cu.

Precision Machining

Associating Company
Kobayashi Precision Industry Co.,Ltd
(JIS Q:9100 Certified)

Mimasu Industries Co., Ltd.
(JIS Q 9100 certified)

Opportunity Co.,Ltd.

Based on superior engineering expertise and skilled professionals, as well as the latest 3D-CAD/CAM, numerical lathe and 5-axis machining center technology, these companies provide highly complex machining of hard-to-machine materials with precise dimensional control.

  • • 5-axis machining on highly complex designed parts such as impeller, brisk, manifolds etc.
  • • Extensive experience in many kinds of aerospace (hard-to-machine) materials
  • • Efficient process engineering and strict dimensional control
  • • High quality with high cost performance

Surface Treatment

Associating Company
Denkahimakukougyou Co., Ltd.
(JIS Q 9100 certified)

Osaki Kinzoku Co., Ltd.
(JIS Q 9100 / Nadcap certified)

These companies provide a wide range of surface treatments. Both have intensive track records and have obtained process approval from many primes and vendors with the MIL, QQ and AMS surface treatments.

  • • Anodize process
  • • Passivation process
  • • Nickel plating
  • • Cadmium plating
  • • Provide many other kinds of plating and chemical coatings


Associating Company
Nagase Co., Ltd.
(ISO 9001 certified)

The company performs concentric spinning processes from φ5 mm to φ2600 mm with maximum pressure of 8 tons on stainless sheets.

  • • Flexible solutions for low volume production with high cost performance.
  • • Lower expenses on dies and fixtures
  • • Stainless steel, titanium alloy, and nickel alloy; Inconel, Kovar, Hastelloy, etc.

Assembly and Maintenance

Associating Company
Mimasu Industries Co., Ltd.
(JIS Q 9100 certified)

Yoshimasu Seisakusho Co., Ltd.
(JIS Q 9100 / Nadcap / ISMS certified)

In addition to the production of single parts, these companies provide assemblies of component units under optimized clean room conditions. In addition to the assembling operations, those qualified specialists perform repairs and overhauls of precision mechanical units.

  • • Assembly and repair service of hydraulic pump and motors
  • • Assembly and repair service of gear boxes
  • • Assembly of rack and panel
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