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Ohtsuka Ceramics Inc.



Strive to deepening and development of technology and know-how , we will meet in a wide range of precise request .

Tokyo Office

  3-2-16 Sugamo Toshima Tokyo

Head Office&Factory

  482-1 Han-ya Shimotsuma Ibaraki


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Welcome to our homepage.

 We have been as advantages than other companies to be integrated production since established in1959,from the raw material processing to sintering. We are challenged to constantly reseach and development in order to respond to the diversification of the market changes and customer need. We are producing with all technology that has been developed 50years,responds to the need of a wide range of users.

CEO Kiichiro Ohtsuka

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Company Profile

  • Head Office
  • Factory
  • Facility
  • Facility
Company name Ohtsuka Ceramics Inc.
Location ■Head Office&Factory
482-1 Han-ya Shimotsuma Ibaraki JAPAN
■Tokyo Office
3-2-16 Sugamo Toshima Tokyo JAPAN
Establishment date 23.Oct.1959
President Kiichiro Ohtsuka
Capital JPY 16,337,500
Customer Automotive parts,Electrical and electronic components,Semiconductor components and mecanical parts industry
Manufacturing materials Alumina,Steatite,Zirconia,Forsterite,Cordierite,Silicon Carbide,Silicon Nitride,and more

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Material List

  • Alumina
  • Steatite
  • Forsterite
  • Zirconia
  • Silicon Carbide
  • Silicon Nitride
  • Alumina
  • This is used in the various fields requiring mechanical strength,electrical resistance properties,a heat resistance,wear resistance and chemical resistance.
  • Steatite
  • This is excellent in mechanical strength and electrical insulation properties compared to porcelain,also a high-precision parts can be mass-produced at comparatively low cost by the mold. And also green body has a good machinability,its can be a small amount produced by machining.
  • Forsterite
  • This is used for bonding by soft glass and metal because it is excellent in large thermal expansion coefficient and a high frequency insulation.
  • Zirconia
  • This is most in toughness and mechanical strength at room temperature,therefore has been used for a parts requiring wear resistance and shock resistance.
Silicon Carbide
  • Silicon Carbide
  • This is used for sliding parts such as mechanical seal because of its excellent hardness,thermal conductivity,high temperature and corrosion resistance.
Silicon Nitride
  • Silicon Nitride
  • This is a non-oxide ceramics versatile with a very excellent characteristics. This ceramics can used in harsh environments because of its excellent high-strength,high toughness,excellent corrosion resistance and wear resistance.
Glaze and Decal:Ceramics screw,nut,and more
  • Glaze and Decal
  • Glaze and Decal

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