Inventor
Koichi Oyamada
Inventor
Kanagawa, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography86%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
5,252,421'Electrophotographic toner'19935,032,483'Electrophotographic red toner'19914,965,162'Electrophotographic developer containing tin oxide'19904,933,251'Electrophotographic developer'19904,880,719'Two component electrophotographic developer'19894,837,100'Electrophotographic developer containing positively chargeable toner'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1993Patents assigned to FUJI XEROX CO LTD (6)· patent assignee history
1989–1993Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJI XEROX CO LTD | 6 | 1989–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 6 | 1989–1993 |