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Latest update: 27/04/2017 14:30:00

Tokai Engineering Service Co., Ltd.

We are a ceramic product manufacturer expanding its business globally.

Our company is a ceramic product manufacturer expanding its business globally. We mainly manufacture four kinds of products: ceramic materials, mold materials for forming optical lenses, aspherical lens molds, and aspherical lenses. We guarantee accuracy as high as 1 nm in arithmetic surface roughness in molds for aspherical lenses when satisfying customer needs for diameters for 0.1 to 100 mm. We manufacture aspherical lenses by direct processing or pressing. We are conducting joint R&D with the Shibaura Institute of Technology under the Strategic Core Technology Advancement Program.


Other presentation

[Company strength]
Our company has been establishing cutting-edge technologies at the request of a major optical manufacturer. We have formed many networks with universities and research institutions through the Strategic Core Technology Advancement Program and various industry-university collaboration projects. We secured a site in Kyoto next to the Kyoto University campus for trial molding and ultra-high-precision measurement.  We also opened a laboratory in Tokyo with the Shibaura Institute of Technology in April 2016, where we mainly develop materials and improve modification technologies. Our company has been producing thick CVD-SiC coating and other technologies in collaboration with such universities.

[Business description]
We handle various ceramic materials including silicon carbide (SiC), silicon nitride (Si3N4), high-strength silicon nitride, alumina, zirconia, and refractory ceramics, and SiC and other mold materials for forming optical lenses. We manufacture molds for various aspherical lenses from 0.1 to 100 m in diameter, and manufacture various aspherical lenses by direct machining or pressing. We guarantee high accuracy in molds for forming optical lenses where the arithmetic surface roughness (Ra) is not over 1 nm. We invite you to consider using ceramic materials if you cannot satisfy the necessary specifications with surface treatment or with special metal materials, or want to further improve performance.

Ceramic product manufacturing

[Strength of products/technologies]
We form SiC coating for high-precision surface treatment by applying CVD to mirrors of astronomical telescopes and ultra-high-precision glass molds for aspherical glass lens molds. Our SiC coating technology is highly appreciated by many optical manufacturers. We are the only company that possesses sufficiently advanced CVD-SiC coating technology to achieve super mirror finishing. This can be up to 1 nm in arithmetic surface roughness (Ra) when the thickness is a maximum of 7 mm. We are now proceeding with new technical development to further enhance this technology. Our company can offer super mirror finishing technology capable of achieving 1 nm in arithmetic mean surface roughness with form error less than dozens of nanometers. This technology is appreciated by many manufacturers in the Kyoto area.

[Representative's message]
Our company started out in 2001 by manufacturing ceramic molds and we have been expanding our business domain to the field of optical lenses. We started our corporate history in Kagamihara, Gifu Prefecture. We are an elite group of skilled staff. We are fortunate to have customers among representative firms in their industries and excellent partners for materials and processing. Such clients and partners have contributed to our growth. We are considering the development of next-generation optical elements by merging fine ceramic materials with ultra-high-precision machining technologies. We are now particularly focused on exports to Asia and new product development. We will always do our best to be a company capable of satisfying customer expectations by keeping up with the changing times and flexibly following customer intentions.

[Company structure for market development/overseas expansion]
A total of three staff members are in charge of sales channel development, including promoting transactions with existing customers, cultivating new customers, and handling technical inquiries. One member of this team is from the management division, one is from the technical sales division, and one is an operating officer. Our company has a track record of doing business overseas with companies in Thailand, China, Taiwan, Korea, and Europe. We have established a system for overseas business expansion.

[Market share/Ranking]
We have a top-ranking global market share for CVD-SiC coating with surface roughness of 1 nm or less for articles not thinner than 7 mm.

[Awards and media coverage]


ISO 9001.

[Joint research and development]
Shibaura Institute of Technology: Joint research under the Strategic Core Technology Advancement Program. Joint research on material modification with this institute is still in progress at a jointly opened laboratory.

[Intellectual property]
Ceramic Bonding Technology (patented).

[Main Clients / Business History (domestic)]
Many major domestic Japanese optical manufacturers and glass manufacturers.

[Main Clients / Business History (overseas)]
Optical manufacturers and research institutions in Taiwan, Korea, China, and Thailand; optical manufacturers and research institutions in Europe.

This company is recommended by the following support organizations.

Kansai Head Office, SMRJ