Inventor
Masao Ishida
Inventor
Wako, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Jprimary
F16JPistons21%
Y10TTechnical subjects covered by former us classification12%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%
C22CAlloys6%
F16CShafts6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B01DSeparation3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels3%
B22FWorking metallic powder3%
PatentTitleYear
10,808,301Magnesium alloy and method of manufacturing same20208,365,696'Piston device for internal combustion engines'20137,963,212'Combination of a piston and a piston ring'20117,574,795'Method of manufacturing connecting rod'20097,462,576'Automobile exhaust gas purifying combustion catalysts'20087,089,902'Sintered alloy valve seat and method for manufacturing the same'20066,454,271'Combined oil ring'20026,312,159'Bearing metal positioning structure in a split connecting rod'20016,261,388'Cold forging steel having improved resistance to grain coarsening and delayed fracture and process for producing same'20015,651,553'Antirotation structure for combined oil ring'19975,469,616'Method of manufacturing a side rail of a combined oil ring'19955,316,321'Nonferrous piston ring with hard surface treatment layer'19945,310,827'Polyamide copolymers'19945,308,089'Combined oil ring'19945,241,748'Method for manufacturing a compression ring'19935,093,437'Polyamide copolymers'19924,816,544'Polyamideimide elastomer and production thereof'19894,368,170'Method of operating nuclear reactors'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to HITACHI LTD (1)· patent assignee history
1989–1994Patents assigned to KURARAY CO (3)· patent assignee history
1989–1994Based in Kurashiki, JP· patent location history
1993–2013Patents assigned to TEIKOKU PISTON RING CO LTD (8)· patent assignee history
1993–1994Based in Okaya, JP· patent location history
1997–2013Based in Suwa, JP· patent location history
2001–2020Patents assigned to HONDA MOTOR CO LTD (5)· patent assignee history
2001–2020Based in Wako, JP· patent location history
2001–2009Based in Saitama, JP· patent location history
2013Patents assigned to ISHIDA MASAO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEIKOKU PISTON RING CO LTD | 8 | 1993–2013 |
| HONDA MOTOR CO LTD | 5 | 2001–2020 |
| KURARAY CO | 3 | 1989–1994 |
| HITACHI LTD | 1 | 1983 |
| ISHIDA MASAOself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wako, JP | 4 | 2001–2020 |
| Suwa, JP | 4 | 1997–2013 |
| Kurashiki, JP | 3 | 1989–1994 |
| Saitama, JP | 2 | 2001–2009 |
| Okaya, JP | 2 | 1993–1994 |