Company Information
Patented Technology
Our patented technologies are as follows.
More details are available on the “Japan Platform for Patent Information.”
| Registration No. | Title of Invention | Registration Date |
|---|---|---|
| Patent No. 7830258 | Incineration ash sampling device and incineration ash sampling system incorporating the same | Mar. 06, 2026 |
| Patent No. 7589937 | Method for producing low-potassium mushrooms | Nov. 18, 2024 |
| Patent No. 7570207 | Method for evaluating the risk of and preventing incinerator blockages | Oct. 10, 2024 |
| Patent No. 7535958 | Sewage Treatment System and Sewage Treatment Control Method | Aug. 08, 2024 |
| Patent No. 7488520 | Sludge fertilizer with high nitrogen mineralization rate | May 14, 2024 |
| Patent No. 7455011 | Force-feed pipeline structure, a design method for the force-feed pipeline structure, and a force-feed pipeline inspection method | Mar. 14, 2024 |
| Patent No. 7431391 | Method for predicting degradation of a manhole pump | Feb. 06, 2024 |
| Patent No. 7431390 | Method for determining an abnormality of a manhole pump | Feb. 06, 2024 |
| Patent No. 7344935 | Manhole pump monitoring system | Sep. 06, 2023 |
| Patent No. 7332185 | Method for early detection of abnormalities in manhole pumps | Aug. 15, 2023 |
| Patent No. 7265451 | Method for preventing uplift in underground buried structures | Apr. 18, 2023 |
| Patent No. 7186757 | Supernatant Water Drainage Apparatus and Supernatant Water Drainage Method | Dec. 01, 2022 |
| Patent No. 7144497 | Supernatant Water Drainage Apparatus and Supernatant Water Drainage Method | Sep. 20, 2022 |
| Patent No. 7138129 | Sterilization Apparatus and Method for Suppressing Scum Formation Using the Same | Sep. 07, 2022 |
| Patent No. 7019010 | Inspection Device for Duct Inner Wall, and Computer Program | Feb. 03, 2022 |
| Patent No. 6937800 | Floating Device for In-Pipe Investigation, In-Pipe Investigation Method, and In-Pipe Investigation System | Sep. 02, 2021 |
| Patent No. 6867638 | Sewerage Monitoring System and Sewerage Monitoring Program | Apr. 13, 2021 |
| Patent No. 6829585 | Sewage Treatment System and Sewage Treatment Method | Jan. 26, 2021 |
| Patent No. 6783303 | Inspection Device for Duct Inner Wall | Oct. 23, 2020 |
| Patent No. 6682021 | Road-Subsidence Risk-Level Evaluation Device, Road-Subsidence Risk-Level Evaluation Method, and Computer Program for Road-Subsidence Risk-Level Evaluation | Mar. 26, 2020 |
| Patent No. 6639423 | Behavior Investigation Device and Behavior Investigation Method for Extending/Contracting Flexible Pipe Joint | Jan. 07, 2020 |
| Patent No. 6626156 | Maintenance Apparatus for Water Supply Pond-Like Structure, Method for Maintaining Water Supply Pond-Like Structure, and Computer Program | Dec. 06, 2019 |
| Patent No. 6619842 | Waste Separation System | Nov. 22, 2019 |
| Patent No. 6543214 | Motion Monitoring Device | Jun. 21, 2019 |
| Patent No. 6345754 | Waste Separation System | Jun. 01, 2018 |
| Patent No. 6321866 | Incinerator Blockage Prevention Method, Incinerator Blockage Prevention Agent Additive Amount Calculation Device, and Incinerator Blockage Prevention Agent Additive Amount Calculation Program | Apr. 13, 2018 |
| Patent No. 5974335 | Incinerator Blockage Prevention Method | Jul. 29, 2016 |
| Patent No. 5881260 | Incinerator Blockage Risk Evaluation Method and Incinerator Blockage Prevention Method | Feb. 12, 2016 |
| Patent No. 5223079 | Method for Strengthening Surrounding Ground of Existing Small-Scale Permanent Underground Structure | Mar. 22, 2013 |
| Patent No. 5196633 | Seismic Isolation Joint | Feb. 15, 2013 |
| Patent No. 4980478 | Infiltration Water Inflow Location Identifying Device | Apr. 27, 2012 |
| Patent No. 4885605 | Earthquake Resistant Structure Manhole Using Low Strength Artificial Lightweight Filter Materials and Guide Route Elements | Dec. 16, 2011 |