Hydraulic system for working machine
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Mar 4, 2025
Grant Date -
Feb 15, 2024
app pub date -
Aug 9, 2023
filing date -
Aug 9, 2023
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydraulic system for a working machine includes first and second hydraulic actuators actuated by hydraulic fluid delivered by a hydraulic pump, a first flow rate controller to control a first supply flow rate of hydraulic fluid supplied to the first hydraulic actuator to match a first required flow rate, a second flow rate controller to control a second supply flow rate of hydraulic fluid supplied to the second hydraulic actuator to match a second required flow rate, and a special flow rate control system to, if a sum of the first and second required flow rates is greater than a maximum delivery flow rate of the hydraulic pump, reduce the first supply flow rate to allow the second supply flow rate to approach the second required flow rate.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- KUBOTA CORPORATION
International Classification(s)

- 2023 Application Filing Year
- E01H Class
- 95 Applications Filed
- 14 Patents Issued To-Date
- 14.74 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fukuda, Yuji | Sakai, JP | 139 | 642 |
# of filed Patents : 139 Total Citations : 642 | |||
Nagao, Kohei | Sakai, JP | 30 | 27 |
# of filed Patents : 30 Total Citations : 27 | |||
Nishimoto, Ryuki | Sakai, JP | 10 | 22 |
# of filed Patents : 10 Total Citations : 22 |
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Patent Citation Ranking
- 0 Citation Count
- E01H Class
- 0 % this patent is cited more than
- < 1 Age
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Nov 05, 2024 | P | Publication | |
Oct 16, 2024 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
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