On June 10, 2014, the Shonai Shiraishi Mine received an award for mine safety.

Mining, manufacturing, processing, and selling of calcium carbonate and natural zeolite.

Nitto Funka Shouji Co., Ltd. has been engaged in the mining, manufacturing, processing, and sales of calcium carbonate (CaCO3) since its establishment. In Japan, which has limited resources, limestone is considered a unique resource, and Nitto Funka Shouji Co., Ltd. owns particularly valuable pure white crystalline limestone mines at each of its factory locations. The high quality and reserves of this limestone are the company's greatest pride and its most significant asset. Furthermore, a passionate team of research and technology has created the "superfine particle NS," which can be said to have established the "heavy calcium carbonate" industry in contrast to "light calcium carbonate." Following this, the company has developed various new products, including surface treatment products such as the "Nobelite NCC" series, granulated products like the "Carpet" series, and submicron "Nitrex" series products that rival colloidal calcium carbonate, consistently leading the industry as a top manufacturer and a comprehensive producer of calcium carbonate, boasting quality, technology, and quantity both domestically and internationally. 【Products Offered】 ○ Calcium Carbonate ○ Natural Zeolite For more details, please contact us or download the catalog.

• stone
• Tile work

Aluminum hydrous silicate minerals that contain water molecules as a main component in the form of crystalline water within their structure.

The name "zeolite" is derived from the Greek meaning "boiling stone" and is also referred to as "boiling stone" in another name. Zeolite is a hydrated aluminum silicate mineral that contains water molecules (H2O) as a main component in the form of crystal water within its structure. When heated suddenly, it bubbles and melts, appearing as if it is boiling, which is how it got its name. The crystal water in zeolite exists as water molecules within the three-dimensional network structure of zeolite, and is specifically called "zeolite water." Even when dehydrated by heating, the structure of zeolite is not destroyed, and the areas where crystal water was present remain as cavities, resulting in a sponge-like structure that has the property of strongly adsorbing gases and moisture again. 【Features】 ○ Even when dehydrated by heating, the structure of zeolite is not destroyed, and the areas where crystal water was present remain as cavities, which have the property of strongly adsorbing gases and moisture again. ○ The cation exchange capacity is not affected by the surrounding environment (such as pH) and has the property of sustaining that capacity for a long time. ○ It is an effective and beneficial material for purifying the earth, water, and air by adsorbing pollutants. For more details, please contact us or download the catalog.

• stone
• Airport facilities
• Water Supply Facilities

Calcium carbonate for additives in rubber and fillers.

Used as a base material for tablets, chalk, ceramics, and paper manufacturing. It is also used as an additive in rubber and fillers, and is included in erasers and toothpaste to utilize its abrasive properties. It is recognized for use as a cosmetic ingredient and food additive. It is used in plastics, rubber, bathtubs, etc.

• Exterior tiles
• Interior and exterior tiles
• Tile work

Mineral "zeolite" that adsorbs pollutants.

The name zeolite is derived from the Greek word meaning "boiling stone" and is also referred to as "boiling stone." It has the property of strongly adsorbing gases and moisture. As a mineral of the 21st century, zeolite is an effective and beneficial material for purifying the earth, water, and air, and it will continue to attract more attention in the future.

• stone
• Tile work

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Do you have any concerns or requests regarding wired bed exit sensors? × Tangling or tripping over wired cables × Cable disconnection or damage × Worrying about forgetting to turn the switch back on after temporarily stopping the sensor. × Wanting to be notified of bed exits even from a location far from the nurse call outlet. Such concerns can be resolved simply by connecting our wireless nurse call linked set to the sensor! Our wireless nurse call linked set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed area, alleviating concerns about tripping or falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations far from the nurse call outlet, allowing for more flexible equipment placement.

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer acquisition primarily in the BtoB (business-to-business) sector. On December 18, 2025 (Thursday), they published a page titled "Is it essential when starting a new business!? 'Profit Model.'" The 'Profit Model' refers to a solid business foundation that serves as a crucial "pillar" of revenue necessary for business success. The page explains various patterns of 'Profit Models' and strategies for securing 'Profit Models' by creatively targeting. (Page Overview: Excerpts) ■ 'Value' as a guideline for advancing business ■ Other necessary elements: 'Social Credibility' 'Profit Model' ■ Let's build a "Selling Mechanism = Profit Model!" ■ Patterns of 'Profit Models' ■ Patterns for securing 'Profit Models' by creatively targeting (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/profit-model-2025-12/

We will introduce the implementation results of the sensor technology developed by the Hotron Group, which has been cultivated over more than half a century, through customer case studies. In addition to automatic door sensors, we also offer a wide range of vehicle detection sensors and nursing/care sensors. We have many implementation examples available, so please take a look at the case study page.

To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/