Inventor
Atsushi Takesue
Inventor
Fukushima, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography37%
C07CAcyclic or carbocyclic compounds27%
H10KOrganic electric solid-state devices8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
H05BElectric heating6%
C07DHeterocyclic compounds4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium2%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments2%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices2%
PatentTitleYear
9,056,884'Process for producing a charge control agent'20158,808,951'Electrophotographic photosensitive body'20148,673,792'p-Terphenyl compound mixture and electrophotographic photoreceptors made by using the same'20148,486,594'P-terphenyl compound mixture and electrophotographic photoreceptors made by using the same'20138,247,144'Photoreceptor for electrophotography'20128,088,540'Photoreceptor for electrophotography'20128,003,286'Photoreceptor for electrophotography'20117,919,219'Electrophotographic photosensitive body'20117,902,402'Tetramine compound and organic EL device'20117,897,816'Tetramine compound and organic EL device'20117,884,245'Process for producing hydrazone compound'20117,807,274'Tetramine compound and organic EL device'20107,799,492'P-terphenyl compound and photosensitive body for electrophotography using such compound'20107,790,342'Electrophotographic photosensitive body'20107,759,030'P-terphenyl compound and photosensitive body for electrophotography using such compound'20107,402,701'Organic EL devices and production process thereof'20085,840,980'Diamine compounds and electrophotographic photoreceptor'19985,728,500'Electrophotographic photoreceptor with acenaphthene compound'19985,721,082'Electrophotographic photoreceptor containing amine compound'19985,707,768'Diamine compounds and electrophotographic photoreceptor'19985,654,481'Amine compound'19975,631,404'Diamine compounds for use in electrophotographic photoconductors'19975,629,421'Hydrazone compounds'19975,512,400'Hydrazone compound and electrophotographic photoreceptor and organic electroluminescent element both containing the same'19965,489,495'Electrophotographic photoconductor and diamine compounds for use in the same'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2015Patents assigned to HODOGAYA CHEMICAL CO LTD (25)· patent assignee history
1996–1997Patents assigned to RICOH KK (2)· patent assignee history
1996–2015Based in Tokyo, JP· patent location history
1996–1997Based in Ibaraki, JP· patent location history
1998Based in Tsukuba, JP· patent location history
2008–2011Based in Koriyama, JP· patent location history
2010–2014Based in Fukushima, JP· patent location history
2012–2013Patents assigned to ABE KATSUMI (3)· patent assignee history
2012–2013Patents assigned to KOIKE MAKOTO (3)· patent assignee history
2012–2013Patents assigned to TAKESUE ATSUSHI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HODOGAYA CHEMICAL CO LTD | 25 | 1996–2015 |
| ABE KATSUMI | 3 | 2012–2013 |
| KOIKE MAKOTO | 3 | 2012–2013 |
| TAKESUE ATSUSHIself | 3 | 2012–2013 |
| RICOH KK | 2 | 1996–1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fukushima, JP | 8 | 2010–2014 |
| Koriyama, JP | 7 | 2008–2011 |
| Tokyo, JP | 3 | 1996–2015 |
| Tsukuba, JP | 3 | 1998 |
| Ibaraki, JP | 3 | 1996–1997 |