Ryota Nogami, Representative Director“We carefully listen to both explicit and latent customer needs to propose optimal products and services,” says Ryota Nogami, representative director. This customer-focused approach ensures that Nogamigiken drives enduring client relationships while advancing battery development.
Its portfolio spans ultra-sharp cutting blades, precision gauges, long-life dies, and specialized punching systems designed to meet the demanding requirements of secondary battery development. These tools feature innovations such as adhesion-resistant cutting for aluminum-based cathodes, ultra-narrow clearances down to two μm, and selectable clearance options that help minimize burrs and delamination. Unlike others that cause the active layer to collapse or peel, Nogamigiken’s handheld punches prevent damage, preserving sample integrity for accurate mass and density measurements.
By combining deep technical mastery with a commitment to customer-driven innovation, Nogamigiken has become a trusted partner to automotive leaders, battery producers, universities, and research institutions across Japan, Europe, and North America.Innovative Tools for Next-Generation Batteries
Since the 1990s, Nogamigiken has expanded into press die design and mass production, creating ultra-precise, long-life components. In 2000, it launched a dedicated solutions business to address explicit and latent customer needs, providing tailored products and technical support. By 2008, the company had entered the battery development field, helping manufacturers and researchers tackle the challenges of processing delicate electrode materials.
Nogamigiken’s flagship products are a testament to its relentless drive for innovation. The handheld electrode punch, sold in over 8,000 units globally, allows precise punching down to 1.00 mm in diameter and includes specialized models for lithium metal. Initially offering five μm clearance only, Nogamigiken advanced its machining and assembly technologies to achieve narrower clearance for thinner anode current collectors under six μm.
Today, it offers four μm, three μm, and two μm options, allowing users to optimize performance for specific battery materials while minimizing burrs, deformation, and interlayer delamination for reliable evaluation. The Clean Press C-frame tabletop jig enables continuous processing in glove boxes, featuring a lightweight design and replaceable die cassettes for flexible use.
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We carefully listen to both explicit and latent customer needs to propose optimal products and services.
For SEM-ready cross-section samples, the S technique cut surface finishing jig produces ultra-smooth surfaces while controlling cracks, interlayer separation, and burrs, even in composite materials. Its C technique punching jig handles brittle solid-state battery materials without damage, with adjustable pressure and a short-circuit-proof ceramic blade. The variable precision coating applicator ensures one-micron incremental control of electrode slurry thickness, demonstrating Nogamigiken’s attention to material consistency and prototype reliability.
The company also maintains a fully equipped laboratory to replicate customer production environments. A glove box with argon atmospheres, FE-SEMs with EDS, 3D laser scanning microscopes, high-precision punching and cutting machines, CNC vision measurement systems, and micro-hardness testers enable rigorous testing and process optimization. This in-house capability ensures tools perform reliably in real-world conditions and integrate seamlessly into mass production lines.Meeting the Challenges of Next-Generation Batteries
Solid-state batteries, with brittle electrolytes and soft lithium metal, present new challenges for prototyping and evaluation. Nogamigiken developed specialized C and S technique jigs that prevent cracking, burrs, and interlayer separation while preserving sample integrity. In testing, 10-mm sulfide-based pellets were processed into 5.00 mm by 5.00 mm square samples with a C technique jig (punching jig), and then one side of the square sample was processed with a S technique jig (finishing jig) to make a smooth cut surface roughness of 4.2 μm, allowing SEM observation without damage. This level of precision accelerates research and ensures accurate assessment of battery performance and degradation.
Beyond that, Nogamigiken’s tools are compact, ergonomic, and designed for glove box use, with operation so simple that results remain consistent regardless of the operator. One automotive battery manufacturer, struggling with conventional punching dies, achieved over 680,000 USD in annual cost savings by adopting its long-life dies.
Recognized by the Japanese Ministry of Economy, Trade, and Industry, as well as multiple industry awards, Nogamigiken remains a trusted partner in pushing the limits of battery technology. By combining decades of precision craftsmanship with innovation, it is shaping the tools that make next-generation batteries possible.
