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Patents and designs
Last update date April 2, 2024
Patents and designs for sewerage business
Introducing patents and designs acquired in the sewerage business in Yokohama City.
| Types | Name of invention | Patent Number | Joint Applicant | Date of application | Registration date | Overview |
|---|---|---|---|---|---|---|
| Patents | Rainwater basin lid | Patent No. 5724079 | Hinode Water Supply Equipment Co., Ltd. | June 8, 2012 | April 10, 2015 | It is a rainwater basin cover that has excellent rainwater inflowability and can efficiently inflow even if fallen leaves flow with rainwater. |
| Patents | Backflow prevention equipment for underground structures | Patent No. 6581415 |
Asahi Innovex Co., Ltd. |
July 22, 2015 | September 6, 2019 | This device is for underground structures to prevent backflow damage caused by tsunami etc. from the sewer outlet. This is a highly versatile device that can be installed in various places such as sewer pipes by using a rectangular rectangular rectangular elastic plate as a member, without the need to use complex and special structures. |
| Design | Groove lid | Design Registration No. 1457141 Design Registration No. 1457483 Design registration 1457484 |
Hinode Water Supply Equipment Co., Ltd. | June 8, 2012 | November 9, 2012 | This design is applicable to patent 5724079. |
For more information on patents and designs, please refer to the Patent Information Platform (external site).
For inquiries to this page
Sewerage River Bureau, Management Promotion Department (in charge of technology development)
Phone: 045-671-3967
Phone: 045-671-3967
Fax: 045-664-0571
Email address: gk-gijutukaihatu@city.yokohama.lg.jp
Page ID: 203-964-834
