Inventor
Shigeharu Onuma
Inventor
Hitachi, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography50%
G06FElectric digital data processing20%
H04LTransmission of digital information, e.g. telegraphic communication10%
H04WWireless communication networks10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
10,922,481Visual user attention redirection while form filling to enhance auto-fill accuracy202110,901,676Application extension to localized external devices20215,204,202'Electrophotographic photosensitive element comprising a protective layer with a porous surface impregnated with lubricant'19935,073,466'Electrophotographic member containing a fluorine-containing lubricating agent and process for producing the same'19914,791,040'Multilayered electrophotographic photosensitive member'19884,430,404'Electrophotographic photosensitive material having thin amorphous silicon protective layer'19844,405,703'Electrophotographic plate having an age-hardened aluminum substrate and process for producing the same'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1993Patents assigned to HITACHI LTD (5)· patent assignee history
1983–1984Patents assigned to HITACHI KOKI KK (2)· patent assignee history
1983–1993Based in Hitachi, JP· patent location history
1988–1993Patents assigned to HITACHI CHEMICAL CO LTD (3)· patent assignee history
2021Patents assigned to IBM (2)· patent assignee history
2021Based in Tokyo, JP· patent location history
2021Based in Toyko, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 5 | 1983–1993 |
| HITACHI CHEMICAL CO LTD | 3 | 1988–1993 |
| HITACHI KOKI KK | 2 | 1983–1984 |
| IBM | 2 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 5 | 1983–1993 |
| Tokyo, JP | 1 | 2021 |
| Toyko, JP | 1 | 2021 |