Inventor
Kouichi Sugama
Inventor
Tokyo, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography83%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
8,431,298'Toner and toner manufacturing method'20138,426,098'Image print and image forming method'20137,885,585'Developing roller and image forming method employing the same'20117,672,626'Developing roller and image forming method employing the same'20107,505,720'Developing roller and developing method thereof'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2013Patents assigned to KONICA MINOLTA BUSINESS TECH (5)· patent assignee history
2009Based in Hachioji, JP· patent location history
2010–2013Based in Tokyo, JP· patent location history
2013Patents assigned to SUGAMA KOUICHI (2)· patent assignee history
2013Patents assigned to ANNO MASAHIRO (1)· patent assignee history
2013Patents assigned to GOAN KAZUYOSHI (1)· patent assignee history
2013Patents assigned to KOGA ITO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONICA MINOLTA BUSINESS TECH | 5 | 2009–2013 |
| SUGAMA KOUICHIself | 2 | 2013 |
| ANNO MASAHIRO | 1 | 2013 |
| GOAN KAZUYOSHI | 1 | 2013 |
| KOGA ITO | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 2010–2013 |
| Hachioji, JP | 1 | 2009 |