HAMASAKI; Kazunari

Patent Applications and Registrations

Patent applications and USPTO patent grants for HAMASAKI; Kazunari.The latest application filed is for "electrophotographic photosensitive member, process cartridge, and image forming apparatus".

Company Profile

7.23.24

HAMASAKI; Kazunari - Osaka-shi JP
Hamasaki; Kazunari - Osaka JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20220100110 - IWASHITA; Yuko ; et al.	2022-03-31
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20220100111 - IWASHITA; Yuko ; et al.	2022-03-31
Electrophotographic photosensitive member, process cartridge, and image forming apparatus Grant 11,003,101 - Iwashita , et al. May 11, 2	2021-05-11
Electrophotographic photosensitive member, process cartridge, and image forming apparatus Grant 10,802,411 - Iwashita , et al. October 13, 2	2020-10-13
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20200233323 - IWASHITA; Yuko ; et al.	2020-07-23
Electrophotographic photosensitive member, process cartridge, and image forming apparatus Grant 10,635,008 - Iwashita , et al.	2020-04-28
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20200057396 - IWASHITA; Yuko ; et al.	2020-02-20
Electrophotographic photosensitive member, process cartridge, and image forming apparatus Grant 10,539,889 - Iwashita , et al. Ja	2020-01-21
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20190235400 - IWASHITA; Yuko ; et al.	2019-08-01
Electrophotographic Photosensitive Member, Process Cartridge, And Image Forming Apparatus App 20190235399 - IWASHITA; Yuko ; et al.	2019-08-01
Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatus Grant 9,298,112 - Mizuta , et al. March 29, 2	2016-03-29
Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus Grant 9,285,692 - Mizuta , et al. March 15, 2	2016-03-15
Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus Grant 9,217,981 - Kimoto , et al. December 22, 2	2015-12-22
Monolayer type photoconductor and image forming device Grant 9,141,007 - Hamasaki , et al. September 22, 2	2015-09-22
Method Of Manufacturing Positively-charged Single-layer Electrophotographic Photoreceptor, Positively-charged Single-layer Electrophotographic Photoreceptor, And Image Forming Apparatus App 20150160571 - Mizuta; Yasufumi ; et al.	2015-06-11
Method Of Manufacturing Positively-charged Single-layer Electrophotographic Photoreceptor, Positively-charged Single-layer Electrophotographic Photoreceptor, And Image Forming Apparatus App 20140093816 - Mizuta; Yasufumi ; et al.	2014-04-03
Positively-charged Single-layer Electrophotographic Photoreceptor And Image Forming Apparatus App 20140093280 - Kimoto; Keizo ; et al.	2014-04-03
Positively-charged Single-layer Electrophotographic Photoreceptor And Image Forming Apparatus App 20140093817 - Mizuta; Yasufumi ; et al.	2014-04-03
Electrophotographic photoreceptor and image forming apparatus Grant 8,679,710 - Kuboshima , et al. March 25, 2	2014-03-25
Electro photographic photoconductor and color image forming apparatus Grant 8,642,236 - Hamasaki , et al. February 4, 2	2014-02-04
Color image forming apparatus and color image forming method Grant 7,844,201 - Hamasaki , et al. November 30, 2	2010-11-30
Electrophotographic photoconductor having titanyl phthalocyanine and image forming apparatus Grant 7,838,191 - Kuboshima , et al. November 23, 2	2010-11-23
Electrophotographic photoconductive member and image forming apparatus Grant 7,754,402 - Hamasaki , et al. July 13, 2	2010-07-13
Electrophotographic photoconductor and image-forming apparatus Grant 7,700,251 - Nakai , et al. April 20, 2	2010-04-20
Color Image Forming Apparatus And Color Image Forming Method App 20090028607 - Hamasaki; Kazunari ; et al.	2009-01-29
Monolayer Type Photoconductor And Image Forming Device App 20080305418 - Hamasaki; Kazunari ; et al.	2008-12-11
Single layer type electrophotographic photoconductor and image forming device App 20080286673 - Kuboshima; Daisuke ; et al.	2008-11-20
Single layer type electrophotographic photoconductor and image forming device Grant 7,416,825 - Kuboshima , et al. August 26, 2	2008-08-26
Drum Unit And Image Forming Apparatus Equipped Therewith App 20080187368 - Watanabe; Yukimasa ; et al.	2008-08-07
Electro Photographic Photoconductor And Color Image Forming Apparatus App 20080187847 - Hamasaki; Kazunari ; et al.	2008-08-07
Electrophotographic photoconductive member and image forming apparatus App 20080153020 - Hamasaki; Kazunari ; et al.	2008-06-26
Electrophotographic photoconductor and image forming apparatus App 20070218379 - Kuboshima; Daisuke ; et al.	2007-09-20
Electrophotographic photoconductor and image-forming apparatus App 20070111118 - Nakai; Norio ; et al.	2007-05-17
Electrophotographic photoconductor and manufacturing method of electrophotographic photoconductor App 20070077507 - Otsubo; Junichiro ; et al.	2007-04-05
Electrophotosensitive material Grant 7,101,647 - Azuma , et al. September 5, 2	2006-09-05
Single layer type electrophotographic photoconductor and image forming device App 20060160005 - Kuboshima; Daisuke ; et al.	2006-07-20
Electrophotographic photoreceptor and image forming apparatus App 20060141377 - Kuboshima; Daisuke ; et al.	2006-06-29
Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material Grant 7,057,034 - Hamasaki , et al. June 6, 2	2006-06-06
Electrophotosensitive material App 20040058257 - Azuma, Jun ; et al.	2004-03-25
Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material App 20040049027 - Hamasaki, Kazunari ; et al.	2004-03-11
Phthalocyanine crystal and its production, and electrophotosensitive material using the same Grant 6,391,505 - Hamasaki , et al. May 21, 2	2002-05-21
Electrophotosensitive material App 20010044061 - Sugai, Fumio ; et al.	2001-11-22
Electrophotographic photoreceptor Grant 6,090,514 - Kakui , et al. July 18, 2	2000-07-18
Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative Grant 5,976,742 - Sugai , et al. November 2, 1	1999-11-02

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