Nabtesco
A Japanese precision machinery conglomerate that, through its subsidiary CMET (now Semet), developed and sold vat photopolymerization (SLA) systems and sand mold additive manufacturing equipment for industrial prototyping and casting applications.
- CEO / Founder
- Kazumasa Kimura
- Team Size
- 5001-10000
- Stage
- Subsidiary
Technology & Products
Key Products
SLA 3D printers (e.g., CMET series); Sand mold additive manufacturing systems; Precision reduction gears (core business); Motion control components
Technological Advantage
Nabtesco's AM business leverages decades of precision engineering heritage from its parent group, but the core AM technology (SLA and sand mold printing) is not uniquely differentiated from competitors like 3D Systems or voxeljet. The 2023 AM site certification provides a quality assurance moat for production applications, but the technology itself is replicable. The divestiture to Tobata Group in 2026 aligns the AM business with a natural customer base in foundry and casting, potentially improving commercial traction.
Patent position
Nabtesco filed 0 patent families in 2022-2024 versus 14 in 2019-2021, a 100% drop, while tracked AM filings in the same patent offices fell just 1%, a far sharper pullback than the broader field. Its 58 total families trail named peers 3D Systems (300), ExOne (118), voxeljet (104), and Desktop Metal (83). AMPulse analysis
- Filing momentum
- 0 families filed 2022–2024, 14 in 2019–2021 (-100%); all tracked AM filings in the same offices -1%
- Filed in
- JP 72%EP 14%WO 9%US 3%CN 2%
- Named competitors, AM patent families
- 3D Systems 300voxeljet 104ExOne 118Desktop Metal 83
58 AM patent families in total. Recent years are still being published, so read a filing change against the same-office figure.
Differentiation
Value Proposition
Provides high-precision SLA and sand mold 3D printing systems that reduce lead times for casting patterns and prototypes, enabling faster design iteration and lower tooling costs for foundries and metal-casting customers.
How They Differentiate
Nabtesco's AM business (CMET/Semet) competes in SLA and sand mold printing, where 3D Systems has broader market share and voxeljet specializes in sand casting. Nabtesco's differentiation lies in its Japanese manufacturing quality and the 2023 AM site certification, but it lacks the scale and brand recognition of global leaders.
Market & Competition
Target Customers
Foundries, metal-casting operations, industrial manufacturers, aerospace and automotive prototyping
Industry Verticals
Industrial manufacturing; Aerospace; Automotive; Foundry and casting; Railway
Competitors
3D Systems (SLA systems); voxeljet (sand mold printing); ExOne/Desktop Metal (binder jetting for sand); EOS (industrial AM systems)
Growth & Milestones
Growth Metrics
patents_ip: Increase in number of patent and other applications noted in Value Report 2024; no specific patent numbers provided.. major_milestones: BCAOアワード 2025 award received (railway division); collaboration with Tallano Technologies for clean railway technology.. growth_metrics: FY2024 net sales ¥17.3 billion (total company); MFR segment operating profit margin 12.7% due to impairment losses.
Major Milestones
2003: Nabtesco formed through merger of Teijin Seiki and NABCO; 2000: Acquired CMET (later Semet) subsidiary; 2023: Achieved Japan's first ISO/ASTM 52920 AM manufacturing site certification; 2026: Divested 93.75% stake in Semet to Tobata Group
Notable Customers
Japanese foundries and casting companies; Aerospace and automotive prototyping customers (specific names not publicly disclosed)
Recent coverage of Nabtesco
AM patents
AM-relevant patents linked to this company.
- Patents
- 59
- Granted
- 4
- Families
- 58
Leading domains: process (58), equipment (31), material (30)
Filings by year: 2021: 4 · 2019: 10 · 2018: 8 · 2016: 7 · 2015: 8 · 2013: 1
- Modeling equipment2018103462 · JP
- Warp correction device for three-dimensional structures and manufacturing method for three-dimensional structures2020084298 · JP
- Modeling equipment2018003148 · JP
- Metal laminate modeling equipment, modeling method, and modeling jig2021046564 · JP
- MODELING APPARATUS3560715 · EP