Inventor
Seita Hayashi
Inventor
Oyama, JP
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F15Bprimary
F15BSystems acting by means of fluids in general16%
Y10TTechnical subjects covered by former us classification16%
E02FDredging14%
F16HGearing14%
F04BPositive-displacement machines for liquids9%
F16DCouplings for transmitting rotation7%
B60TVehicle brake control systems or parts thereof5%
F16KValves5%
G05GControl devices or systems insofar as characterised by mechanical features only5%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines2%
PatentTitleYear
10,612,530Bent-axis hydraulic pump motor20209,194,381'Bent axis type axial piston pump/motor'20156,564,549'Displacement control device for hydraulic pump and brake control device for hydraulic motor'20036,226,987'Travel drive apparatus for hydraulic drive work vehicles and control therefor'20016,209,675'Travel drive apparatus for hydraulic drive work vehicle and control method therefor'20016,112,521'Backpressure control circuit for hydraulic drive device'20006,068,013'Counter balance valve'20005,983,942'Damper of hydraulic pilot valve'19995,946,910'Hydraulic circuit for hydraulically driven working vehicle'19995,930,997'Driving device for a hydraulic motor'19995,907,952'Capacity control device for a hydraulic motor for a hydraulically driven vehicle'19995,884,984'Hydraulic braking apparatus having two safety valves'19995,845,680'Damper of hydraulic pilot valve'19985,826,488'Swash plate angle changing apparatus for a piston pump/motor of swash plate type'19985,755,138'Electrical lever assembly'19985,597,261'Coupling joint for an operative lever apparatus'19975,558,127'Hydraulic pilot valve'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2020Patents assigned to KOMATSU MFG CO LTD (17)· patent assignee history
1996–2020Based in Oyama, JP· patent location history
1997Based in Kanagawa, JP· patent location history
1998–2000Based in Tochigi, JP· patent location history
1998–1999Based in Kawasaki, JP· patent location history
2015Patents assigned to HAYASHI SEITA (1)· patent assignee history
2015Patents assigned to MIYATA TAKUYA (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KOMATSU MFG CO LTD | 17 | 1996–2020 |
| HAYASHI SEITAself | 1 | 2015 |
| MIYATA TAKUYA | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oyama, JP | 9 | 1996–2020 |
| Tochigi, JP | 5 | 1998–2000 |
| Kawasaki, JP | 2 | 1998–1999 |
| Kanagawa, JP | 1 | 1997 |