Inventor · disambiguated record
Takatsugu Obata
Also filed as: OBATA TAKATSUGU
28 granted patents·4 pending applications·219 citations·filing 1998–2011
95Inventor score
Top patents by PatentIndex Score
32 records- 0195US7416824B2Organic photoconductive material electrophotographic photoreceptor and image forming apparatus using the sameSHARP KK·Filed 2004·Granted Aug 26, 2008·63 cites·13 claims
- 0275US6291120B1Electrophotographic photoreceptor and coating composition for charge generating layerSHARP KK·Filed 2000·Granted Sep 18, 2001·16 cites·17 claims
- 0373US7794907B2Hydrazone compound, electrophotographic photoreceptor comprising the hydrazone compound, and image forming apparatus equipped with the electrophotographic photoreceptorSHARP KK·Filed 2005·Granted Sep 14, 2010·1 cites·27 claims
- 0472US6210847B1Crystalline oxotitanylphthalocyanine and electrophotographic photoreceptor using the sameSHARP KK·Filed 1999·Granted Apr 3, 2001·22 cites·21 claims
- 0571US7457565B2Image forming apparatusSHARP KK·Filed 2005·Granted Nov 25, 2008·4 cites·6 claims
- 0668US7625681B2Asymmetric bis-hydroxyenamine compound, electrophotographic photoreceptor and image forming apparatusSHARP KK·Filed 2006·Granted Dec 1, 2009·3 cites·13 claims
- 0767US7175956B2Organic photoconductive material, electrophotographic photoreceptor comprising the same, and image-forming apparatusSHARP KK·Filed 2003·Granted Feb 13, 2007·10 cites·14 claims
- 0866US6043428APhotoelectric material using organic photosensitising dyes and manufacturing method thereofSHARP KK·Filed 1998·Granted Mar 28, 2000·81 cites·22 claims
- 0958US8206881B2Electrophotographic photoreceptor and image forming apparatusOBATA TAKATSUGU·Filed 2008·Granted Jun 26, 2012·2 cites·6 claims
- 1057US7615326B2Electrophotographic photoconductor and image forming apparatusSHARP KK·Filed 2007·Granted Nov 10, 2009·1 cites·8 claims
- 1156US7977020B2Electrophotographic photoreceptor containing enamine compound, image formation apparatus provided with the same, enamine compound and method for producing the sameSHARP KK·Filed 2008·Granted Jul 12, 2011·1 cites·8 claims
- 1254US7560217B2Method of forming electrophotographic photoreceptor and method of drying coating filmSHARP KK·Filed 2005·Granted Jul 14, 2009·0 cites·4 claims
- 1353US7534539B2Electrophotographic photoreceptor and image forming apparatus having the sameSHARP KK·Filed 2004·Granted May 19, 2009·5 cites·7 claims
- 1449US7402209B2Apparatus and method for applying coating liquid to cylindrical substrate, and electrophotographic photoreceptor produced by that method and electrophotographic apparatus provided with the sameSHARP KK·Filed 2004·Granted Jul 22, 2008·4 cites·2 claims
- 1546US7393415B2Method and apparatus for applying coating liquid to cylindrical substrate and method for producing electrophotographic photoreceptor and electrophotographic photoreceptor produced by the production methodSHARP KK·Filed 2004·Granted Jul 1, 2008·3 cites·4 claims
- 1645US8003287B2Electrophotographic photoconductor and image-forming apparatusSHARP KK·Filed 2007·Granted Aug 23, 2011·0 cites·12 claims
- 1743US2010028047A1Electrophotographic photoreceptor and image forming apparatusKONDOH AKIHIRO·Filed 2009·Application pending·0 cites
- 1842US7754403B2Electrophotoconductor and image forming apparatusSHARP KK·Filed 2007·Granted Jul 13, 2010·0 cites·8 claims
- 1942US7727693B2Electrophotographic photoreceptor, electrophotographic image forming method, and electrophotographic apparatusSHARP KK·Filed 2004·Granted Jun 1, 2010·2 cites·23 claims
- 2041US8354211B2Electrophotographic photoreceptor, image forming apparatus and process cartridgeSHARP KK·Filed 2008·Granted Jan 15, 2013·0 cites·7 claims
- 2141US2009097881A1Electrophotographic photoreceptor containing triamine compound and image forming apparatus having the same, as well as triamine compound and method for producing the sameKONDOH AKIHIRO·Filed 2008·Application pending·0 cites
- 2240US7985519B2Aromatic polycarbonate, electrophotographic photoreceptor, and image forming apparatusSHARP KK·Filed 2008·Granted Jul 26, 2011·0 cites·2 claims
- 2340US7563548B2Amine compound, manufacturing method thereof, electrophotographic photoreceptor using amine compound and image forming apparatus having the sameSHARP KK·Filed 2004·Granted Jul 21, 2009·1 cites·25 claims
- 2438US7364823B2Amine compound, electrophotographic photoreceptor using the amine compound and image forming apparatus having the sameSHARP KK·Filed 2005·Granted Apr 29, 2008·0 cites·10 claims
- 2537US7781137B2Method and apparatus for producing electrophotographic photoreceptorSHARP KK·Filed 2005·Granted Aug 24, 2010·0 cites·10 claims
- 2636US2009305155A1Electrophotographic photoreceptor and image forming apparatus provided with the sameOBATA TAKATSUGU·Filed 2009·Application pending·0 cites
- 2733US2012156599A1Electrophotographic photoconductor and image forming apparatus including the sameOBATA TAKATSUGU·Filed 2011·Application pending·0 cites
- 2832US7803507B2Electrophotographic photoreceptor and image forming apparatus including the sameSHARP KK·Filed 2004·Granted Sep 28, 2010·0 cites·9 claims
- 2932US7588871B2Electrophotographic photoreceptor and image forming apparatus provided with the sameSHARP KK·Filed 2004·Granted Sep 15, 2009·0 cites·7 claims
- 3032US7429439B2Electrophotographic photoreceptor and image forming apparatus provided with the sameSHARP KK·Filed 2004·Granted Sep 30, 2008·0 cites·5 claims
- 3130US8546049B2Electrophotographic photoconductor and image forming apparatus using the sameKIHARA AKIKO·Filed 2011·Granted Oct 1, 2013·0 cites·6 claims
- 3230US6022655APhotoreceptor for electrophotography, bishydrazone compound and intermediate thereof, and method for producing bishydrazone compound and intermediate thereofSHARP KK·Filed 1998·Granted Feb 8, 2000·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →