Inventor
Yasuharu Gotoh
Inventor
Tsuchiura, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids25%
F16CShafts25%
C23CCoating metallic material10%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines10%
F16JPistons10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
F03CPositive-displacement engines driven by liquids5%
F15BSystems acting by means of fluids in general5%
PatentTitleYear
5,290,369'Method of gas sulphonitriding'19945,231,912'Bent axis type variable displacement hydraulic machine'19935,187,017'Sliding member, and method and apparatus for producing the same by gas sulphonitriding'19935,182,978'Bent axis type variable displacement hydraulic machine'19935,094,144'Bent axis type variable displacement hydraulic machine'19925,085,128'Variable displacement bent axis type hydraulic machine'19924,788,902'Thrust hydrostatic bearing device for use in axial piston machine'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1994Patents assigned to HITACHI CONSTRUCTION MACHINERY (6)· patent assignee history
1988Patents assigned to HITACHI LTD (1)· patent assignee history
1988–1994Based in Tsuchiura, JP· patent location history
1992Patents assigned to AKASAKA YOSHIMICHI (1)· patent assignee history
1992Patents assigned to GOTOH YASUHARU (1)· patent assignee history
1992Patents assigned to NAKAMURA ICHIRO (1)· patent assignee history
1992Based in Ibaraki-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI CONSTRUCTION MACHINERY | 6 | 1988–1994 |
| AKASAKA YOSHIMICHI | 1 | 1992 |
| GOTOH YASUHARUself | 1 | 1992 |
| HITACHI LTD | 1 | 1988 |
| NAKAMURA ICHIRO | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsuchiura, JP | 6 | 1988–1994 |
| Ibaraki-shi, JP | 1 | 1992 |