Inventor
Ryubun Seimiya
Inventor
Hino, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography62%
H04NPictorial communication, e.g. television15%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
4,930,438'Developing device using a single component developer'19904,760,422'Developing device using single component toner'19884,696,255'Developing apparatus'19874,511,622'Intermediate transfer member for transferring toner image on a carrier'19854,472,724'Electrostatic image reproducing apparatus'19844,467,333'Copying apparatus'19844,436,402'Copying machine'19844,435,723'Recording apparatus with editing capability'19844,386,147'Toner for developing electrostatic latent images'19834,320,952'Sheet transport in electrophotographic copying apparatus'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1985Patents assigned to KONISHIROKU PHOTO IND (7)· patent assignee history
1982–1985Based in Hachioji, JP· patent location history
1984–1990Based in Hino, JP· patent location history
1987–1988Patents assigned to RICOH KK (2)· patent assignee history
1987Based in Tokyo, JP· patent location history
1990Patents assigned to DEMIZU HIROMI (1)· patent assignee history
1990Patents assigned to OBU MAKOTO (1)· patent assignee history
1990Patents assigned to SEIMIYA RYUBUN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KONISHIROKU PHOTO IND | 7 | 1982–1985 |
| RICOH KK | 2 | 1987–1988 |
| DEMIZU HIROMI | 1 | 1990 |
| OBU MAKOTO | 1 | 1990 |
| SEIMIYA RYUBUNself | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hino, JP | 5 | 1984–1990 |
| Hachioji, JP | 4 | 1982–1985 |
| Tokyo, JP | 1 | 1987 |