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  1. Home
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  3. Top Seiko Co., Ltd.
Ceramics
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Top Seiko Co., Ltd.

EstablishmentSeptember 2001
capital2000Ten thousand
number of employees156
addressShiga/Nagahama-shi/1197-4 Hosoe-cho
phone0749-51-9021
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last updated:Jul 29, 2026
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  • Products/Services(32)
  • catalog(23)
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Top Seiko Co., Ltd. Company Overview

High-precision 3D shape processing of fine ceramics, quartz glass, and high melting point metals is achieved through the fusion of the latest machine tools and accumulated technology!

Since our founding in 2001, we have accumulated technology with the motto "We can process iron, and it's not impossible to process other materials." If you are facing challenges with materials such as alumina, zirconia, tungsten, or molybdenum and wondering, "Is there a way to process this material?", please feel free to reach out to us. We will propose the optimal materials tailored to your specific applications, ensuring short delivery times and high quality. We have introduced hot press machines and are working on direct bonding without the use of adhesives. Our precision machined parts are used in many industries, including semiconductor manufacturing equipment, aerospace, medical, precision instruments, analytical equipment, automotive, and fusion energy.

Business Activities

High-precision machining at the micron level is possible through grinding and cutting techniques for fine ceramics, heat-resistant glass such as quartz, and heat-resistant metals represented by molybdenum, tungsten, and tantalum. We primarily operate 3-axis and 5-axis CNC machining centers, with over 100 various processing machines in total. Using 5-axis machining, we also perform 3D curved surface processing utilizing CAD/CAM technology. Main processed materials: ◎ Ceramics Alumina, Zirconia, Aluminum Nitride (AlN), Silicon Carbide (SiC), single crystal silicon, various machinable ceramics, MMC (composite materials: metal + ceramics), CMC (composite materials: ceramic matrix composites, SiC fibers), and other special ceramics. ◎ Heat-resistant glass Quartz, Sapphire, Tempax glass, and other special glasses, glass ceramics, etc. ◎ Heat-resistant metals Tungsten (W), Molybdenum (Mo), Tantalum (Ta), Niobium (Nb), Titanium (Ti), Nickel (Ni).

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Products/Services (32)

Aluminum Nitride (AlN) Processing Case for Semiconductor Manufacturing product image
Aluminum Nitride (AlN) Processing Case for Semiconductor Manufacturing
Internal flow path diffusion bonding (ceramics, quartz glass, pure molybdenum) product image
Internal flow path diffusion bonding (ceramics, quartz glass, pure molybdenum)
Processing Example: "Three-Dimensional Processing of Quartz Glass (World Heritage Site Colosseum)" product image
Processing Example: "Three-Dimensional Processing of Quartz Glass (World Heritage Site Colosseum)"
Examples of successful material changes: electronics manufacturers, semiconductor manufacturing equipment manufacturers, etc. product image
Examples of successful material changes: electronics manufacturers, semiconductor manufacturing equipment manufacturers, etc.

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catalog(23)

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Examples of Diffusion Bonding Processing: Ceramics, Quartz Glass, Nickel

Examples of Diffusion Bonding Processing: Ceramics, Quartz Glass, Nickel

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Top Seiko Co., Ltd. "Successful Case of Material Change"

Top Seiko Co., Ltd. "Successful Case of Material Change"

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Case Study: Successful Material Change Example

Case Study: Successful Material Change Example

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Processing Example: Tantalum

Processing Example: Tantalum

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news(4)

Notice of Participation in "SEMICON Japan" from December 9 (Wednesday) to December 11 (Friday), 2026.

  • SEMINAR_EVENT

Introducing precision machined products in the micron order made from ceramics, quartz glass, and high melting point metals such as tungsten and molybdenum (difficult-to-cut materials). We propose the latest component manufacturing technology that combines precision machining and bonding techniques utilizing the newly introduced diffusion bonding furnace.

Sep 24, 2026

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We will exhibit at the "6th Ceramics Japan (High-Performance Ceramics Exhibition)" from December 8 (Wednesday) to December 10 (Friday), 2021.

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Our company will be exhibiting at the "6th Ceramics Japan (High-Performance Ceramics Exhibition)" to be held at Makuhari Messe from December 8 (Wednesday) to December 10 (Friday), 2021. This exhibition is one of the largest business fairs in Japan, showcasing high-performance ceramics (structural materials, functional materials, biomaterials, refractories), ceramic raw materials (oxides, phosphors, nitrides, carbides), and manufacturing and processing technologies. We sincerely look forward to your visit.

Dec 01, 2021

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We will be exhibiting at the "High-Performance Materials Week 2019, 4th High-Performance Ceramics Exhibition"!

  • SEMINAR_EVENT

Top Seiko Co., Ltd. will exhibit at the "High-Performance Materials Week 2019, 4th High-Performance Ceramics Exhibition" held at Makuhari Messe from December 4 (Wednesday) to December 6 (Friday), 2019. We sincerely hope to connect with everyone for further development through the introduction of precision cutting processed products of hard and brittle materials such as ceramics and glass, as well as high melting point metals like tungsten and molybdenum, and the exchange of new information. We kindly invite everyone to come and visit us. [Product and Service List] ■ Aluminum Nitride ■ Alumina ■ Zirconia ■ Quartz Glass ■ Ceramic Composites (MMC) ■ Tungsten and Molybdenum

Nov 25, 2019

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Detailed information

Company name Top Seiko Co., Ltd.
number of employees156
Contact addresspostalcode 526-0105 Shiga/ Nagahama-shi/ 1197-4 Hosoe-choView on map TEL:0749-51-9021 FAX:0749-51-9022
Key PartnersSemiconductor manufacturing equipment Analysis equipment Medical devices Aerospace Automobiles Fusion energy
Business LocationsClick here for the list
Industry Ceramics
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