Inventor
Haruo Honda
Inventor
Hitachi, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches67%
F16KValves8%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power8%
H02HEmergency protective circuit arrangements8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
6,838,631'Power use circuit breaker and electrical circuit arrangement for electric power generation plant'20056,751,078'Power use circuit breaker and electrical circuit arrangement for electric power generation plant'20045,576,580'DC power supply circuit'19965,452,170'Commutation type DC breaker'19955,402,297'Commutating type DC circuit breaker arrangement'19955,146,387'Interrupter having grounded interrupter container within a grounded cover'19925,084,600'Gas-blast load-break switch'19925,045,651'Switch'19914,933,802'Gas insulated switchgear system having single phase reserve bus'19904,365,126'Gas circuit breaker'19824,109,894'Pilot valve device for regulating the flow of a fluid'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2005Patents assigned to HITACHI LTD (11)· patent assignee history
1978–2005Based in Hitachi, JP· patent location history
2004–2005Patents assigned to HITACHI ELECTRIC SYSTEMS CO LT (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 11 | 1978–2005 |
| HITACHI ELECTRIC SYSTEMS CO LT | 2 | 2004–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 11 | 1978–2005 |