We will introduce a case where the heater manufacturer Seitokusha is working on technical tests as an improvement to the equipment and products that our customers are actually implementing!

An example of solving a problem by changing the heating element is published!

As a manufacturer of industrial electric heaters, we would like to introduce some improvement proposals that we can assist with. 【Issues】 "I want to increase capacity with the same area." "I want to eliminate temperature unevenness (improve heat uniformity)." "I want to increase the heating speed." 【Solution】 Change the heater using round wire coil heating elements to a heater using strip heating elements. 【Results】 ■ By covering the entire area of the insulation material with heating elements, uniform heat treatment can be achieved. ■ Compared to heaters using round wire coil heating elements, it is possible to input more than twice the wattage. We have received feedback from customers stating, "The radiation efficiency has improved," and "Installation was easy, just by changing the fitting."

• Ceramic Heater
• Other heaters
• Industrial Furnace

An example of solving a problem by changing the insulation material used for the heater's backup!

As a manufacturer of industrial electric heaters, we would like to present some improvement proposals that we can assist with. 【Issues】 "I want to prevent heat loss from the second and third layers of insulation." "I want to achieve energy-saving operation by preventing heat loss." "I want to make the furnace shell space more compact." 【Solutions】 Change the insulation material used as a backup for the heater. Use high-performance insulation material for the second layer. 【Results】 By adopting high-performance insulation material, a reduction in the amount of dissipated heat from the furnace is expected. *With the same thickness setting as calcium silicate board at 5mm, the radiated heat amount is reduced by approximately 50%. ~According to board manufacturer catalog values~

• Ceramic Heater
• Other heaters
• Industrial Furnace

We would like to introduce a case where a heater manufacturer, Seitokusha, is working on technical tests as part of the improvements to the equipment and products that our customers are actually implementing!

[Testing Examples] 1. Glass Fiber Organic Residue Test In the production of glass fibers, it is essential to burn off the organic materials in a drying oven. However, there was interest in whether it could be effectively burned off using our hot air generation equipment. After several discussions, an opportunity arose for a company visit, during which we operated the equipment as part of a factory tour and conducted a simple pattern test. If you contact us in advance, it is possible to check the availability of the equipment and conduct a simple test. 2. Surface Temperature Comparison Test Under High-Temperature Atmosphere In the equipment used by the customer, there is a risk of electric leakage when the surface temperature of the heater becomes high. Therefore, the specifications were changed to enhance the heat dissipation effect, and both old and new heaters were tested under the same conditions to measure and compare their surface temperatures. The results showed that by enhancing the heat dissipation effect, there was a tendency for the surface temperature of the heater to decrease. This time, due to temperature differences depending on the measurement method, it is necessary to consider new challenges regarding measurement methods in relation to actual furnace measurements, and we are currently working on this.

• Ceramic Heater
• Other heaters
• Industrial Furnace

As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to inform you about our participation in the IT Trend EXPO 2026 Spring. 《Exhibition Information》 With the concept of "New encounters will change tomorrow's work," one of the largest online exhibitions in the industry will be held. NTT TechnoCross will exhibit in the Human Resources Comprehensive category. We have prepared numerous discussions and sessions featuring special guests who are active on television, allowing even those who are usually busy to efficiently gather information on products and services related to IT and DX. Additionally, the first 10,000 participants will receive a 500 yen Amazon gift card. Please apply early. 《Exhibition Overview》 March 3 (Tuesday) to March 7 (Saturday), 2026, online (free: pre-registration required) 《Participation Application》 https://it.expo.it-trend.jp/key/opl7kgdj *Please apply (free) from the "Receive Ticket / Proceed to Participation Registration" link at the above URL.

The TV commercial "What Will You Do in the New Era?" featuring model and actress Akane Horita will begin airing on December 26, 2025. This work expresses the desire of Tokei Densan to respond to the diverse needs of various industries in today's society, where new technologies, such as the expansion of the AI market, are competing with each other, and to nurture and blossom our customers' futures. Please pay attention to Akane Horita, who is dressed in stylish outfits, listening to the concerns of the target audience and offering support. # CM Overview Title: "What Will You Do in the New Era?" (30 seconds / 15 seconds) CM URLs 30 seconds: https://youtu.be/y_lMs0HRj3w 15 seconds: https://youtu.be/egpzMfh8Kok

Thank you very much for your continued support. We would like to inform you that our company will be closed for the year-end and New Year holidays as follows: Year-end and New Year holiday period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) We apologize for any inconvenience this may cause and appreciate your understanding. *Please note that inquiries made through our website will also be responded to after January 5, 2026 (Monday).