[Nationwide Expansion] "AI Sozoku Mitsuro-kun" Utilizing Patented Technology to Be Introduced in 12 Municipalities Nationwide in FY2026!
SumPaulonia has completed its pilot project for the "AI Sozoku Mitsuro-kun" heir identification system, which utilizes patented technology. Following the decision to introduce it in Koriyama City, Fukushima Prefecture, it has now been officially decided for implementation in 12 municipalities nationwide starting from fiscal year 2026. This system is expected to significantly improve operational efficiency and eliminate task dependency on specific individuals in local government inheritance confirmation processes.
📋 Article Processing Timeline
- 📰 Published: May 8, 2026 at 00:30
- 🔍 Collected: May 7, 2026 at 16:02
- 🤖 AI Analyzed: May 7, 2026 at 16:43 (41 min after Collected)
SumPaulonia Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Sumio Takeuchi; hereinafter "SumPaulonia"), a wholly-owned subsidiary of Escrow Agent Japan Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Shoichiro Narumiya), has completed its pilot project for the heir identification system "AI Sozoku Mitsuro-kun," which had been progressing in parallel with various local governments nationwide, following the previously announced decision to introduce it in Koriyama City, Fukushima Prefecture.
As a result, significant operational efficiency improvements were confirmed regardless of region or scale. We are pleased to announce that formal budgeting and introduction have been decided for 11 new municipalities nationwide (a total of 12 municipalities including Koriyama City) starting from fiscal year 2026 (Reiwa 8).
1. From Pilot Project to Formal Introduction — Confirming Implementation Effects Regardless of Municipality Size
In recent years, the increasing burden of inheritance confirmation tasks in fixed asset tax operations, vacant house measures, and land acquisition has become a common challenge for local governments nationwide.
Since 2025, SumPaulonia has collaborated with local governments across the country on pilot projects using "AI Sozoku Mitsuro-kun." As a result, achievements contributing to "significant reduction in work time" and "elimination of task dependency on specific individuals" were confirmed in various environments, from numerous processing cases in ordinance-designated cities to town offices handling diverse tasks with limited personnel.
We believe that the decision for budgeting and formal introduction in 12 municipalities nationwide is a result of this system being evaluated not just as a demonstration and verification stage, but as a practical solution supporting sustainable administrative management.
2. Flexible Plan Deployment According to Municipality Size and Budget (LGWAN Full Plan / Light Plan)
Starting this fiscal year, we are fully launching a customized plan deployment to enable optimal introduction tailored to each municipality's workload and budget.
In addition to the "LGWAN Full Plan," which covers all functions, we have prepared a "Light Plan" that lowers the barrier to entry while achieving core inheritance DX, making it possible to introduce a cost-effective system even in smaller towns and villages.
3. True Inheritance DX Achieved by Patented Technology
SumPaulonia's "AI Sozoku Mitsuro-kun" is not just an AI-OCR tool that digitizes family registers. It performs "automatic generation of inheritance relationship diagrams based on legal grounds," "automatic determination of legal heirs," and "automatic calculation of share ratios" in a one-stop manner based on the read data.
This unique processing logic, backed by multiple patented technologies, shortens tasks that previously took an average of 60 minutes manually to "an average of 10 minutes (approximately 83% reduction)."
4. List of Municipalities Decided for New Introduction in FY2026 (Reiwa 8) (in no particular order)
Starting this fiscal year, the following 12 municipalities nationwide will begin full-scale operation.
[Full Plan Adopting Municipalities (7 municipalities)]
Koriyama City, Fukushima Prefecture (previously announced), 1 in Saitama Prefecture, 1 in Gifu Prefecture, 1 in Kyoto Prefecture, 1 in Fukuoka Prefecture,
1 in Kumamoto Prefecture, 1 in Miyazaki Prefecture
[Light Plan Adopting Municipalities (5 municipalities)]
1 in Aomori Prefecture, 1 in Iwate Prefecture, 1 in Saga Prefecture, 1 in Kumamoto Prefecture, 1 in Miyazaki Prefecture
Reference: SumPaulonia Inheritance Property Management System Implemented Municipalities (13 municipalities)
1 in Kanagawa Prefecture, 1 in Chiba Prefecture, 1 in Mie Prefecture, 3 in Okayama Prefecture, 2 in Shimane Prefecture, 1 in Tokushima Prefecture,
1 in Fukuoka Prefecture, 2 in Kumamoto Prefecture, 1 in Saga Prefecture
As mentioned above, the total number of municipalities currently using SumPaulonia's system is 25 across 16 prefectures.
FY2026 (Reiwa 8) Municipality Heatmap / 16 Prefectures
SumPaulonia will continue to strongly support local public organizations nationwide in solving complex inheritance-related operational challenges, leveraging its patented technology that realizes "concrete operational efficiency beyond family register reading" and its proven implementation track record extending from north to south across the country.
5. To All Municipalities
For inquiries regarding the specific names of adopting municipalities for each plan and the departments using them, please contact us at the following:
[Contact Information]
SumPaulonia Co., Ltd. Inheritance DX Business Division, Inheritance Sales Group, Group Leader Kenichi Oguri
TEL: 080-5865-9289 E-mail: ogurik@sumpaulo.jp
Company Profile
■ SumPaulonia Co., Ltd.
Location: Shin-Otemachi Building 4F, 2-2-1 Otemachi, Chiyoda-ku, Tokyo
Representative: Sumio Takeuchi, President and CEO
Business Activities: Development and provision of SumPaulonia series, development and provision of registration filing systems, etc.
URL: https://www.sumpaulo.jp/
[Official SNS]
Youtube account: https
As a result, significant operational efficiency improvements were confirmed regardless of region or scale. We are pleased to announce that formal budgeting and introduction have been decided for 11 new municipalities nationwide (a total of 12 municipalities including Koriyama City) starting from fiscal year 2026 (Reiwa 8).
1. From Pilot Project to Formal Introduction — Confirming Implementation Effects Regardless of Municipality Size
In recent years, the increasing burden of inheritance confirmation tasks in fixed asset tax operations, vacant house measures, and land acquisition has become a common challenge for local governments nationwide.
Since 2025, SumPaulonia has collaborated with local governments across the country on pilot projects using "AI Sozoku Mitsuro-kun." As a result, achievements contributing to "significant reduction in work time" and "elimination of task dependency on specific individuals" were confirmed in various environments, from numerous processing cases in ordinance-designated cities to town offices handling diverse tasks with limited personnel.
We believe that the decision for budgeting and formal introduction in 12 municipalities nationwide is a result of this system being evaluated not just as a demonstration and verification stage, but as a practical solution supporting sustainable administrative management.
2. Flexible Plan Deployment According to Municipality Size and Budget (LGWAN Full Plan / Light Plan)
Starting this fiscal year, we are fully launching a customized plan deployment to enable optimal introduction tailored to each municipality's workload and budget.
In addition to the "LGWAN Full Plan," which covers all functions, we have prepared a "Light Plan" that lowers the barrier to entry while achieving core inheritance DX, making it possible to introduce a cost-effective system even in smaller towns and villages.
3. True Inheritance DX Achieved by Patented Technology
SumPaulonia's "AI Sozoku Mitsuro-kun" is not just an AI-OCR tool that digitizes family registers. It performs "automatic generation of inheritance relationship diagrams based on legal grounds," "automatic determination of legal heirs," and "automatic calculation of share ratios" in a one-stop manner based on the read data.
This unique processing logic, backed by multiple patented technologies, shortens tasks that previously took an average of 60 minutes manually to "an average of 10 minutes (approximately 83% reduction)."
4. List of Municipalities Decided for New Introduction in FY2026 (Reiwa 8) (in no particular order)
Starting this fiscal year, the following 12 municipalities nationwide will begin full-scale operation.
[Full Plan Adopting Municipalities (7 municipalities)]
Koriyama City, Fukushima Prefecture (previously announced), 1 in Saitama Prefecture, 1 in Gifu Prefecture, 1 in Kyoto Prefecture, 1 in Fukuoka Prefecture,
1 in Kumamoto Prefecture, 1 in Miyazaki Prefecture
[Light Plan Adopting Municipalities (5 municipalities)]
1 in Aomori Prefecture, 1 in Iwate Prefecture, 1 in Saga Prefecture, 1 in Kumamoto Prefecture, 1 in Miyazaki Prefecture
Reference: SumPaulonia Inheritance Property Management System Implemented Municipalities (13 municipalities)
1 in Kanagawa Prefecture, 1 in Chiba Prefecture, 1 in Mie Prefecture, 3 in Okayama Prefecture, 2 in Shimane Prefecture, 1 in Tokushima Prefecture,
1 in Fukuoka Prefecture, 2 in Kumamoto Prefecture, 1 in Saga Prefecture
As mentioned above, the total number of municipalities currently using SumPaulonia's system is 25 across 16 prefectures.
FY2026 (Reiwa 8) Municipality Heatmap / 16 Prefectures
SumPaulonia will continue to strongly support local public organizations nationwide in solving complex inheritance-related operational challenges, leveraging its patented technology that realizes "concrete operational efficiency beyond family register reading" and its proven implementation track record extending from north to south across the country.
5. To All Municipalities
For inquiries regarding the specific names of adopting municipalities for each plan and the departments using them, please contact us at the following:
[Contact Information]
SumPaulonia Co., Ltd. Inheritance DX Business Division, Inheritance Sales Group, Group Leader Kenichi Oguri
TEL: 080-5865-9289 E-mail: ogurik@sumpaulo.jp
Company Profile
■ SumPaulonia Co., Ltd.
Location: Shin-Otemachi Building 4F, 2-2-1 Otemachi, Chiyoda-ku, Tokyo
Representative: Sumio Takeuchi, President and CEO
Business Activities: Development and provision of SumPaulonia series, development and provision of registration filing systems, etc.
URL: https://www.sumpaulo.jp/
[Official SNS]
Youtube account: https