石川工場 Company Profile

This year, we will be exhibiting devices at the Battery Symposium. Once the location of the exhibition booth and the details of the exhibits are confirmed, we will provide information on our website. ■Conference Name: 66th Battery Symposium ■Location: Wink Aichi (Nagoya) ■Dates: November 18-20, 2025

On September 11, 2024, we began selling the new product Tiny Plus. It enhances the existing Tiny product by adding a timer function and a rotation speed adjustment feature. 【Features】 - Maintains the basic performance of the Ishikawa-style stirring and grinding machine while achieving the smallest size. - Processing volume is 0.03 liters. - Ideal automatic mortar for researchers and developers who perform grinding tasks manually with a mortar and pestle. - The pestle tube has a built-in spring, allowing for stirring and grinding while applying pressure. - Equipped with a timer, enabling multitasking while grinding. - Features a rotation speed adjustment function, allowing grinding under various conditions. - Includes LED lighting for easy monitoring of processing status. - Designed for easy mobility and storage with a detachable AC cord. - Improved chemical resistance due to the use of a stainless steel casing, expanding its applications in laboratories and clean rooms. - Standardly equipped with an acrylic cover for splash prevention and safe handling. - Its ultra-compact and tabletop design allows for use within fume hoods or glove boxes, making it possible to grind substances containing organic solvents, provided the cover material is appropriately selected.

**Summary** The particle size distribution was measured when glass fragments were crushed using an automatic mortar AGB. After crushing standard microscope slide glass to about 3.5mm, it was further pulverized using the automatic mortar AGB. The crushing time was 5 hours, and the particle size measurement was conducted using a laser diffraction device. **Conclusion** Glass fragments of standard microscope slide glass crushed to about 3.5mm were pulverized using the automatic mortar (Ishikawa-type stirring grinder) AGB. The particle size reached saturation in about 3 hours, achieving a size of approximately 1.7μm. **Testing Equipment** - Testing Equipment - Automatic mortar (Ishikawa-type stirring grinder): AGB - Laser diffraction/scattering particle size distribution measurement device: LA-950V2 (Horiba, Ltd.) *Note: The measurement of particle size distribution was outsourced to an external organization.* **Test Results** When glass fragments of standard microscope slide glass crushed to about 3.5mm were pulverized using the automatic mortar (Ishikawa-type stirring grinder) AGB, the particle size saturated in about 3 hours. The particle size was approximately 1.7μm. Therefore, it is possible to crush glass to a particle size of about 1.7μm using the AGB type.