Inventor
Yoshio Ogura
Inventor
Ibaraki, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography63%
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
5,579,091'Developing unit for electro-photographic apparatus'19965,516,982'Developing apparatus having developer regulating member'19965,483,322'Developing unit for an electrophotographic apparatus'19965,453,820'Developing device having a developer mixing chamber for use in electrophotographic apparatus'19955,359,396'Toner density detection method for electrophotographic apparatus'19944,686,153'Electrode wire for use in electric discharge machining and process for preparing same'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to FUJIKURA LTD (1)· patent assignee history
1987Based in Chiba, JP· patent location history
1994–1996Patents assigned to HITACHI KOKI KK (5)· patent assignee history
1994–1996Based in Ibaraki, JP· patent location history
1996Based in Hitachinaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI KOKI KK | 5 | 1994–1996 |
| FUJIKURA LTD | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 4 | 1994–1996 |
| Hitachinaka, JP | 1 | 1996 |
| Chiba, JP | 1 | 1987 |