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Patents and Designs
Last Updated April 2, 2024
Patents and Designs for Sewerage Business
Introducing patents and designs acquired in the sewerage business of Yokohama City.
| Type | Name of invention | Patent number | Joint Applicant | Date of application | Date of registration | 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 lid that has excellent rainwater inflow, and can efficiently inflow of rainwater even if fallen leaves etc. flow with rainwater. |
| Patents | Backflow prevention equipment for underground structures | Patent No. 6581415 |
Asahi Innovax Corporation |
July 22, 2015 | September 6, 2019 | This is a device for underground structures that prevent backflow damage caused by tsunami, etc. from outlets in sewers. This is a highly versatile device that can be installed in various places, such as sewer pipes, without the need to use a complex and special structure by using a rectangular flexible flexible board as a member. |
| Design | Groove lid | Design Registration No. 1457141 Design Registration No. 1457483 Design Registration No. 1457484 |
Hinode Water Supply Equipment Co., Ltd. | June 8, 2012 | November 9, 2012 | This design corresponds to Patent No. 5724079. |
For details on patents and designs, please refer to the Patent Information Platform (external site).
Inquiries to this page
Sewer River Bureau Management Promotion Department Management Promotion Section (in charge of technology development)
Telephone: 045-671-3967
Telephone: 045-671-3967
Fax: 045-664-0571
Email address: gk-gijutukaihatu@city.yokohama.lg.jp
Page ID: 203-964-834
