Inventor
Michiyo Sekiya
Inventor
Atami, JP
Overview
Patents· 50 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography94%
C07DHeterocyclic compounds4%
G03CPhotosensitive materials for photographic purposes2%
PatentTitleYear
11,126,097Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus202111,086,245Image forming apparatus, process cartridge, and cartridge set202110,539,888Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus202010,372,050Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus201910,095,136Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus201810,065,969Method for producing carboxylic acid anhydride, method for producing carboxylic imide, and method for manufacturing electrophotographic photosensitive member20189,921,498'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20189,864,285'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20189,851,648Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus20179,811,011'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20179,772,568'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20179,760,030'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20179,751,880'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound'20179,535,346'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20179,523,929'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20169,494,880'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20169,383,663'Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20169,141,008'Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound'20159,069,267'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20159,063,505'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20159,029,054'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20159,012,112'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20158,993,204'Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus'20158,993,205'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20158,940,465'Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and imide compound'20158,927,184'Method of producing electrophotographic photosensitive member'20158,795,936'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20148,632,931'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20148,546,050'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,524,431'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20138,524,429'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,524,430'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,470,504'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,465,889'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,435,706'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20138,343,699'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20137,745,083'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20107,727,691'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20107,592,113'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20097,534,537'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20097,396,622'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20087,378,205'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20087,141,341'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20067,129,012'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20066,664,014'Electrophotographic photosensitive member electrophotographic apparatus using same and device unit using same'20036,436,597'ELECTROPHOTOGRAPHIC PHOTOSENSITVE MEMBER, PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS WHICH HAVE THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER'20026,372,397'Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus'20026,110,628'Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus'20005,693,443'Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus having the same'19975,455,135'Electrophotographic photosensitive member with overlayer and electrophotographic apparatus employing same'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2021Patents assigned to CANON KK (48)· patent assignee history
1995–2003Based in Tokyo, JP· patent location history
2000–2015Based in Mishima, JP· patent location history
2008–2010Based in Shizuoka, JP· patent location history
2013–2015Patents assigned to SEKIYA MICHIYO (10)· patent assignee history
2013–2015Patents assigned to SEKIDO KUNIHIKO (9)· patent assignee history
2013–2014Patents assigned to NAGASAKA HIDEAKI (8)· patent assignee history
2013–2014Patents assigned to TAKAGI SHINJI (8)· patent assignee history
2015–2021Based in Atami, JP· patent location history
2021Based in Shizuoka-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 48 | 1995–2021 |
| SEKIYA MICHIYOself | 10 | 2013–2015 |
| SEKIDO KUNIHIKO | 9 | 2013–2015 |
| NAGASAKA HIDEAKI | 8 | 2013–2014 |
| TAKAGI SHINJI | 8 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Atami, JP | 24 | 2015–2021 |
| Mishima, JP | 20 | 2000–2015 |
| Tokyo, JP | 3 | 1995–2003 |
| Shizuoka, JP | 2 | 2008–2010 |
| Shizuoka-shi, JP | 1 | 2021 |