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- KAKUDAI MFG. CO., LTD.
- Product:AppGuard Enterprise
Industry:Water Supply Equipment
KAKUDAI MFG. CO., LTD. is a specialized manufacturer dedicated to the production and sale of water-related fixtures. Its core products include faucets — the first point of contact between people and water — and the vessels that receive it. Founded in 1879 (the 12th year of the Meiji era), the company combines traditional craftsmanship with advanced technology to deliver reliable plumbing fixtures, while continuously introducing unique and creative products to the market.
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- ecohai Co., Ltd.
- Product:AppGuard Enterprise
Industry:Parcel Delivery Services
ecohai Co., Ltd. operates a parcel delivery business through approximately 40 offices across Tokyo, Osaka, and Nagoya. The company is distinguished by its strong commitment to environmental sustainability—using bicycles as its main delivery method to reduce CO₂ emissions.
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- PCI Holdings, Inc. (PCI Group)
- Product:AppGuard Enterprise
Industry:Information and Communications
PCI Holdings, Inc. (PCI Group) is a comprehensive information and communications solutions provider that oversees six consolidated subsidiaries engaged in IT services.
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- Jisenkai Aizawa Hospital
- Product:AppGuard Server
Industry:Healthcare (Hospital)
Aizawa Hospital takes an active role in the design and implementation of its medical information systems, leading system deployments with a strong sense of ownership. To address the growing threat of ransomware and other cyberattacks, the hospital chose AppGuard, appreciating its clear and intuitive concept of “allowing only specific actions required by essential system services and processes, while blocking all others.”
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- Nayoro City General Hospital
- Product:AppGuard Server
Industry:Healthcare (Hospital)
As Japan’s northernmost emergency and critical care center, Nayoro City General Hospital has long been proactive in leveraging ICT technologies—for example, by building a network that connects medical institutions across northern Hokkaido and enabling remote triage for emergency patients. In recent years, following a series of ransomware incidents affecting hospitals throughout Japan, the hospital felt a strong sense of urgency that such threats were “by no means someone else’s problem.” Recognizing the importance of an approach that ensures medical services continue even if an intrusion occurs, the hospital chose AppGuard, deploying it on about 70 servers that support its hospital information system.
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- Tsuyama Chuo Hospital
- Product:AppGuard Server
Industry:Healthcare (Hospital)
In recent years, several hospitals have been forced to suspend medical services for extended periods due to ransomware infections. In response to these incidents, Tsuyama Chuo Hospital took proactive steps to strengthen its preparedness—by developing contingency procedures, reinforcing endpoint security measures, and seeking ways to protect systems that are considered absolutely critical to hospital operations.
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- Japan Tennis Association (JTA)
- Product:AppGuard Solo
Industry:Public Interest Incorporated Foundation
The Japan Tennis Association (JTA) serves as the national governing body for tennis in Japan, promoting the sport through its three core pillars: promotion, development, and enhancement. At the heart of its activities lies the concept of the “Three Cs”: Court – improving and expanding playing environments; Coach – discovering and training skilled instructors; Competition – organizing tournaments and fostering a culture of healthy competition.
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- Professor Arihito Yamada of the Faculty of Law, Kanto Gakuin University
- Product:AppGuard Solo
Industry:
Professor Arihito Yamada of the Faculty of Law, Kanto Gakuin University, has been using AppGuard since April 2018. After serving as a certified public tax accountant at one of Japan’s Big Four accounting firms and later as a CFO leading a company through its IPO, he has been engaged in academic research and education, focusing on accounting and tax law at several universities and graduate schools.
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- NEXIAS inc.
- Product:AppGuard Solo
Industry:
NEXIAS inc. was founded in 2016 as a real estate brokerage specializing in investment properties. Driven by a young and dynamic team, the company is united in its mission to provide greater value by connecting clients with the right real estate opportunities.
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- Bizadvisors, Inc.
- Product:AppGuard Sol
Industry:
Bizadvisors, Inc was established in 2002 as an accounting firm specializing in entertainment finance—a pioneering field with few precedents in Japan. Since its founding, the firm has been providing clients with meticulous and personalized advisory services.
Case Study
AppGuard
has been deployed by over 20,000 companies (as of March 2025),
protecting the critical systems of customers
across diverse industries and company sizes.
Here, we present examples of its implementation.
