We are advanced IT infrastructure and natural energy specialists.
Our director, Mr. Fujikawa, realized that the quality of IT services provided by many companies in Japan was extremely low, which he found deeply disappointing.
The company director has experience working in a leading service division of a major Japanese telecommunications company.
Our director, Mr. Fujikawa, realized that the quality of IT services provided by many companies in Japan was extremely low, which he found deeply disappointing. For example, it was not uncommon to find modems and routers connected only by power cables completely unused while companies continued to pay unnecessary monthly fees for them. This kind of waste was widespread, especially in foreign companies’ Japan branches, yet often went unnoticed by their overseas headquarters. He also observed that many companies had not implemented centralized IT management systems such as Active Directory, resulting in inefficient and unreliable management of users, devices, and access rights. This lack of integration often led to fragmented operations and increased security risks that were rarely recognized until a major failure occurred. Mr. Fujikawa found this especially troubling and became strongly motivated to help companies modernize and streamline their IT environments.
Determined to change this situation, Mr. Fujikawa founded eCorpOne Co., Ltd. He believed that true improvement required first transforming the mindset of the people within the company itself.
In fact, many of the clients we have met in the past relied entirely on outsourcing their IT operations to vendors and had no clear understanding of what contracts they had in place. To address this, we began by helping our clients develop internal personnel capable of managing and understanding basic IT operations and contracts on their own.
IT infrastructure integration and management service
We have provided IT support for global companies, interviewed 1,000+ engineers, collaborated with 300+ companies, and refined our IT management.
We built a new Tokyo office from scratch and handled M&A separations, Active Directory migration, Microsoft 365 SSO, and Synology NAS backups.
We are Tokyo based company providing IT support services for corporations.
Our strength is being able to analyze corporate IT and business environment, such as existing IT systems and tax laws to minimize costs and customer’s corporate spending schedule.
We also manage time consuming tasks for customers, such as managing computers and ACLs related to hiring and leaving.
Some of the technologies and strength include as below.
- Active Directory
- Windows and Linux servers
- User management
- ITIL v3 adhered PC desktop support
- VMWare/Hyper-V/KVM virtualization
- Networking/VPN/VLAN over LACP
- Guest and employee WiFi
- Microsoft 365 single sign-on
- Warehousing of hardware
- Customer IT training
- Server/network monitoring (syslog, snmp, remote ping)
- Microsoft and Cisco certifications
- Sale of hardware
- Experience managing wide variety of local and global clients
Solar power plants were built with poor technical design and quality
Our director noticed that many solar power plants were built with poor technical design and quality, which inspired him to start designing and building power plants himself. This marked the beginning of our renewable energy business.
One of his first initiatives was to carefully analyze the shadows cast by surrounding structures and the movement of those shadows throughout the day, then integrate this data into the wiring and panel layout. Since even slight shading can significantly reduce the output of solar panels, he succeeded in dramatically improving energy yield by optimizing the system configuration.
In addition, he focused on areas often overlooked by professional EPCs and electrical contractors—such as cable layout and cable type selection. By redesigning these with both efficiency and cost in mind, he achieved significant reductions in material and labor costs while also improving the long-term profitability and maintainability of the installations.
As his involvement deepened, he also played a key role in the integration of battery systems. This included the analysis of State of Charge (SOC) characteristics and the complex relationship between battery profitability and degradation. These hands-on experiences led to the development of our proprietary battery-related services, which we now offer as part of our broader energy solutions.
Through these and many other innovations, our solar power plants now feature not only elegant appearances but also superior durability, technical precision, and economic performance that distinguish them from conventional installations.
Solar energy integration and management
Efficient design considering factors including:
- Shadow
- Underground matters (rocks, wastes, soil strength, legal requirement, etc)
- Wiring shortness
- Material nature
- Cost and ROI balance analysis
- Consensus of local residents
We have been in this business since 2016, with 100% success rate and average 20% ROI.
All sites are managed by us (eCorpOne) with remote monitoring: IP security cameras, human detection, recording, and electricity monitoring systems.
We have developed 12 solar sites in Japan (as of 2025).
Some of our clients and partners with successful stories
Partner/customer name What we did
GMO PG Corporation We used their payment gateway for face-to-face credit card p
ayment system. We do not software development service any mo
re this time.
Draytek Corp. This is a Taiwan based firewall and IP-PBX com
bined appliance. We have worked strongly with them and imple
mented corporate IP-PBX with IVR (automatic voice response w
ith customer interation (like press key pad to talk to diffe
rent business groups)
Pixip.net We have corporated with the
company to provide global mobile phone connectivity monitor
ing system with numerous SIM cards. This service was for one
of 5 major Japanese mobile carriers.
Survey Sampling, LLC Provides firewalls, managed switches, Asterisk-based IP tele
phony system, etc.
NTT Docomo This is one of the largest mobile telecomunications carrier company. We have been providing complex IPSec VPN setup service.
NTT Communications Provided IP-VPN configuration services.
Other clients We have been providing services to many other clients that we are not able to disclose their names. Those clients are mainly for corporate IT infrastructructure management service.
