Detailed explanation of the Heat Box (W460SY) developed in collaboration with Mr. Olsen.

Just plug it in, and it keeps the freshly made warmth. Ideal for temporarily keeping takeout and delivery warm, as well as for lunch and peak times.

We have developed a heat box in collaboration with Olsen Co., Ltd., which holds a high market share in the delivery and heat retention industry, allowing products to be kept warm during delivery and while being prepared in advance. The built-in heater at the bottom can maintain the temperature of items like bento boxes inside the box at an average of 40-45°C. When not in use, it can be folded up, saving space. It is easy to use; just plug the power cord that comes out from the back into an outlet! This product is packed with the know-how and technology of Olsen Co., Ltd., which boasts the number one market share in the pizza delivery industry. ↓ Olsen Co., Ltd. website https://orusen-market.com/

• Other packaging materials

The low-voltage fuse "BFMN" is a small blade fuse used to protect the electrical circuits of automobiles. When the current increases abnormally, the fuse blows to prevent damage to equipment and wiring. It is recommended for those facing challenges related to circuit protection with low-voltage fuses (below DC 70V) in the automotive and construction machinery industries. It is suitable for protecting circuits of electrical components, comfort equipment, safety devices, and control systems.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed without causing any thermal impact on the base material. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The low-voltage fuse "BFSL" is a compact safety component used to protect automotive electrical circuits. It prevents equipment and wiring failures by blowing the fuse when the current increases abnormally. This low-voltage fuse is recommended for those facing challenges related to circuit protection in the automotive and construction machinery industries, as well as for low-voltage fuses (below DC 70V). It is used for circuit protection of comfort features such as car navigation systems, audio systems, ETC, air conditioning, and seat heaters.

We would like to express our sincere gratitude for your continued patronage. We regret to inform you about our year-end and New Year holiday schedule as follows. We appreciate your understanding. 【Year-end and New Year Holiday Period】 From Saturday, December 27, 2025, to Sunday, January 4, 2026. *Normal business operations will resume on Monday, January 5, 2026. Inquiries received during the holiday period will be addressed sequentially after Monday, January 5, 2026. *Please note that our partner manufacturers and cooperating companies will also be on holiday. We kindly ask that you contact us as soon as possible for urgent orders or inquiries. Nippon Polystar Co., Ltd. 3-4-13 Ishibeguchi, Koka City, Shiga Prefecture Phone: 0748-77-6262 Fax: 0748-77-6662 support@nippon-polystar.co.jp Sales Headquarters