Inventor
Tomoko Nakagawa
Inventor
Tokyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography40%
G02BOptical elements, systems or apparatus20%
F21VFunctional features or details of lighting devices or systems thereof10%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems10%
H04NPictorial communication, e.g. television10%
LOC3210%
PatentTitleYear
10,725,392Electrostatic charge image developing toner202010,551,755Electrostatic charge image developing toner20209,612,544'Electrostatic image developing toner'20178,273,509'Electrophotographic photoreceptor, and image forming device and electrophotographic photoreceptor cartridge using the same member cartridge'2012D0652842'Display screen with an icon image'20126,785,055'Zoom lens system'20046,558,007'Illumination optical system and image projection apparatus'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2004Patents assigned to MINOLTA CO LTD (2)· patent assignee history
2003Based in Izumi, JP· patent location history
2004Based in Sakai, JP· patent location history
2012–2020Patents assigned to MITSUBISHI CHEM CORP (4)· patent assignee history
2012Patents assigned to NAKAGAWA TOMOKO (2)· patent assignee history
2012Patents assigned to HIROI MASAYUKI (1)· patent assignee history
2012Patents assigned to KURIHARA SHUNICHIROU (1)· patent assignee history
2012–2020Based in Tokyo, JP· patent location history
2012Based in Yokohama, JP· patent location history
2017–2020Based in Niigata, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI CHEM CORP | 4 | 2012–2020 |
| MINOLTA CO LTD | 2 | 2003–2004 |
| NAKAGAWA TOMOKOself | 2 | 2012 |
| HIROI MASAYUKI | 1 | 2012 |
| KURIHARA SHUNICHIROU | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 2 | 2012–2020 |
| Niigata, JP | 2 | 2017–2020 |
| Yokohama, JP | 1 | 2012 |
| Sakai, JP | 1 | 2004 |
| Izumi, JP | 1 | 2003 |