Technology Development

Development of New Inorganic Material

As an industry leader in silica sand, we develop advanced materials for use in energy, electronics, and life sciences by applying our decades of technical expertise. Through the development of advanced inorganic materials, we aim to be a company that contributes to both global and local progress.

Glass Material (Spherical Glass, Glass Powder, Glass Bead, Milled Fibers)

We develop glass materials by applying various insights into glass characteristics.
If you have any requests regarding provide samples, please feel free to contact us.

Filler for adjusting thermal expansion coefficient

Development Sample	Density (g/cm³)	Glass Transition Temperature (℃) @TMA	Relative Permittivity @1MHz	Linear Thermal Expansion Coefficient (×10⁻⁶/℃)
Development Sample	Density (g/cm³)	Glass Transition Temperature (℃) @TMA	Relative Permittivity @1MHz	100℃	150℃	200℃	250℃	300℃
Spherical Sample 1	2.8	674	5.5	3.9	4.1	4.2	4.3	4.4
Spherical Sample 2	4.2	687	14.0	8.4	8.8	9.1	9.3	9.5
Spherical Sample 3	7.0	381	25.6	8.9	9.4	9.7	9.9	10.1

Remark: The above values are typical examples for each sample

Filler for adjusting the Refractive Index

Test Piece Appearance (Non-Spherical Sample 2)

Development Sample	Refractive Index of Glass	Particle Size (μm)			SSA (m²/g)	Test Piece Production Conditions			Transmittance (%) @580nm
Development Sample	Refractive Index of Glass	D10	D50	D90	SSA (m²/g)	Size (mm)	Resin	Solid Content (wt%)	Transmittance (%) @580nm
Non-Spherical Sample 1	1.53	1.5	4.8	8.6	1.6	20×20×1	Acrylic type	65	69
Non-Spherical Sample 2	1.53	1.1	2.4	4.0	3.0	20×20×1	Acrylic type	65	61

Remark: The above values are typical examples for each sample

Atypical Filler

Milled Fibers
Flat Fibers

Glass Fiber

Glass Fiber Type	Characteristic	Sectional Shape	Density (g/cm³)	Refractive Index	Linear Thermal Expansion Coefficient ×10⁻⁶/℃	Elastic Modulus (GPa)	Permittivity @1GHz	Dissipation Factor @1GHz
E Glass	Electric Insulation Dimension Stability	Flat	2.55	1.55	5.4	72.6	6.6	0.003
D Glass	Low-Dielectric Constant	Circle	2.28	1.5	3.5	52.0	4.9	0.001

Remark: The above values are typical examples for each Glass Fiber yarn

Functional Material

We develop filler materials with various surface functions.

Conductive Filler (Carbon Nanotube: CNT compound material)

Surface of Spherical Glass
Surface of Milled Fiber

TMH Sand (Material specially developed as casting sand for 3D printers)

We have been developing sand specifically designed for use in 3D printing of casting molds, which is now licensed in Japan. Our sand offers high cleanliness (*1) and dimensional accuracy, making it suitable for casting delicate parts and complex designs. In casting tests, molds produced with our sand successfully formed test piece as thin as 2.5 mm with sufficient strength, allowing for water-based coating.

*1: The removability of loose (non-bonded) sand from the mold surface using air blowing or brushing.

Trial Production of Spherical Sample

We offer trial production of ceramic and glass materials using spheroidizing equipment. If you have any requests regarding spherical powder products, please feel free to contact us. Built-to-order production is available upon consultation.

Trial Production of Grinding Sample and Surface Treatment Sample

We offer trial production of materials using various equipment, mainly focusing on inorganic materials. If you have any specific requirements about adjustment of the particle size distribution (such as the D50 value, upper or lower limits) or fiber length (average value 30-100 μm) of the sample, please feel free to contact us. Built-to-order production is available upon consultation. We also provide surface treatment of inorganic fillers to improve compatibility with resins for slurry or paste applications, or to enhance dispersibility in solvents.

Trial Production of Grinding Sample

Trial Production of Surface Treatment Sample

＜Example of Physical Properties Evaluation＞

● Condition of 3-point Bending Test

Resin

Acrylic

Filler

Spherical Silica

Compound

Resin 30 wt%, Filler 70 wt%

Surface Treatment Agent

3-(Trimethoxysilyl)propyl
Methacrylate

Additive rate

1.0wt%

Shape of the
Test Piece

Cylinder, Φ2.4 mm

List of Evaluation, Analyze, and Trial Equipment

X-ray Fluorescence Spectrometer
Atomic Absorption Spectrophotometer
$Laser Diffraction Particle Size Analyzer$
Laser Diffraction Particle Size Analyzer

UV-VIS Spectrophotometer
Bending strength tester
Pot Mill

Evaluation and Analyze Equipment

●Elemental Analysis: ・Atomic Absorption Spectrophotometer
　Manufactured by Hitachi High-Tech Corp.
・X-ray Fluorescence Spectrometer
　Manufactured by Rigaku Corp.
●Particle Size Analysis: ・Vibratory Sieve Shaker
　Manufactured by Retsch GmbH
・Militrac JPA
　Manufactured by Nikkiso Co., Ltd.
・Microtrac MT3000Ⅱ
　Manufactured by Nikkiso Co., Ltd.
●Transmittance Analysis: ・UV-VIS Spectrophotometer
　Manufactured by Shimadzu Corp.
●Specific Surface Area Analysis: ・Macsorb
　Manufactured by MOUNTECH Co., Ltd.
●Viscosity Analysis: ・SV-10
　Manufactured by A&D Co., Ltd.

●Gel Time Analysis: ・Madoka
　Manufactured Cyber corp.
●Bending Strength Analysis: ・MX2-5000N
　Manufactured by IMADA Co.,Ltd.
●Color Difference Analysis: ・CR-20
　Manufactured by Konica Minolta, Inc.
●Optical Microscope Photography: ・VHX-970F
　Manufactured by KEYENCE Corp.
●pH Analysis: ・LAQUA act
　Manufactured by HORIBA, Ltd.
●Odor Gas Analysis: ・GV-110S
　Manufactured by GASTEC Corp.
●Acid Consumption Analysis
Turbidity Analysis
●Total Clay Analysis
●Ignition Loss Analysis

Test Equipment

●Mill: ・Pot Mill（Al2O3、ZrO2 Ball）
・Vibration Mill
　HSM-50 Manufactured by HERZOG Co., Ltd.
●Mixer/Disperser: ・Super Mixer
　SMV-10Ba Manufactured by KAWATA MFG. CO.,LTD.
・Thinky Mixer
　Awatori-Rentaro Manufactured by THINKY, INC.
・Ultrasonic Homogenizer
　UX-300 Manufactured by MitsuiElectric Co.,Ltd.
●Vacuum Stir Dryer: ・ADS-40
　Manufactured by CHUO KAKOHKI Co.,Ltd.
●Magnetic Separator: ・RE ROLL
　Manufactured by Eriez Magnetics Japan Co., Ltd.
●Electric Furnace: ・S6-2025D-OP
・SS-2030PKP
　Manufactured by MOTOYAMA Co.,Ltd.