Inventor
Kazuhira Ojima
Inventor
Kasama, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators53%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material6%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls6%
B60LPropulsion of electrically-propelled vehicles6%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy6%
H02JElectric power networks6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
Y02TClimate change mitigation technologies related to transportation6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
11,091,058Fuel cell system20216,390,270'Escalator'20025,526,919'Escalator apparatus and method of operation'19965,526,256'Passenger conveyer control apparatus'19965,386,904'Escalator apparatus and method of operation'19955,295,568'Passenger conveyor and treadboard construction for passenger conveyor'19945,291,982'Passenger conveyor, platform floor for passenger conveyor, and comb for platform floor'19945,178,254'Passenger conveyor'19935,135,097'People mover apparatus'19924,984,673'Step of passenger conveyor method of manufacturing same, and wavy metal plate'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2002Patents assigned to HITACHI LTD (9)· patent assignee history
1991–2002Based in Kasama, JP· patent location history
1995Patents assigned to HITACHI MITO ENGINEERING (1)· patent assignee history
1996Patents assigned to HITACHI MITO ENG KK (1)· patent assignee history
2002Patents assigned to HITACHI BUILDING SYS CO LTD (1)· patent assignee history
2021Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history
2021Based in Wako, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 9 | 1991–2002 |
| HITACHI BUILDING SYS CO LTD | 1 | 2002 |
| HITACHI MITO ENG KK | 1 | 1996 |
| HITACHI MITO ENGINEERING | 1 | 1995 |
| HONDA MOTOR CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kasama, JP | 9 | 1991–2002 |
| Wako, JP | 1 | 2021 |