Inventor

Akihiko Kawahara

Inventor

Nara, JP

Overview

1993–2007

Patent span

Physics

Primary field (CPC G)

Patents· 12 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography80%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments20%

PatentTitleYear

7,206,539'Non-magnetic single component developing device'2007 6,472,114'Coating fluid for electric charge generating layer, organic electrophotographic receptor, and method to manufacturing the same'2002 6,136,485'Electrophotographic photoreceptor, process for production thereof, and image-forming apparatus using same'2000 6,136,484'Electrophotographic photoreceptor, process for production thereof, and image-forming apparatus using same'2000 6,090,514'Electrophotographic photoreceptor'2000 6,054,237'Electrophotographic photoreceptor, process for producing the same, and image forming apparatus using same'2000 5,821,021'Photosenstive material for electrophotography'1998 5,656,407'Photosensitive material for electrophotography'1997 5,336,576'Electrophotographic photosensitive member having a photosensitive layer comprising the azo compound'1994 5,288,576'Electrophotographic member having an azo compound with diphenoquinone'1994 5,274,084'Bisazo compounds which contain a diphenoquinone tetraazo component and an electrophotographic photosensitive member having a photosensitive layer comprising the bisazo compound'1993 5,260,157'Electrophotographic photosensitive element comprising a surface protective layer comprising an etherified melamine-formaldehyde resin'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2000Patents assigned to MITA INDUSTRIAL CO LTD (7)· patent assignee history

1993–1998Based in Osaka, JP· patent location history

2000–2007Patents assigned to SHARP KK (5)· patent assignee history

2000–2007Based in Nara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITA INDUSTRIAL CO LTD	7	1993–2000
SHARP KK	5	2000–2007

Locations

Location	Patents	Span
Nara, JP	6	2000–2007
Osaka, JP	6	1993–1998