Maruyama; Akio

Patent Applications and Registrations

Patent applications and USPTO patent grants for Maruyama; Akio.The latest application filed is for "external additive particles, toner, and method for producing external additive particles".

Company Profile

1.34.16

Maruyama; Akio - Inagi JP
Maruyama; Akio - Tokyo JP
Maruyama; Akio - Abiko JP
Maruyama, Akio - Abiko-shi JP
Maruyama; Akio - Kawasaki JP
Maruyama; Akio - Mobara 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
Banknote inspection device, banknote inspection method, and banknote inspection program product Grant 11,423,728 - Yoshimura , et al. August 23, 2	2022-08-23
External Additive Particles, Toner, And Method For Producing External Additive Particles App 20220171305 - Shirakawa; Jun ; et al.	2022-06-02
External Additive Particle And Toner App 20220128920 - Shirakawa; Jun ; et al.	2022-04-28
Banknote Inspection Device, Banknote Inspection Method, And Banknote Inspection Program Product App 20210225112 - YOSHIMURA; Kazuhisa ; et al.	2021-07-22
Image forming method, and electrophotographic apparatus making use of the image forming method Grant 7,749,667 - Kawahara , et al. July 6, 2	2010-07-06
Electrophotographic photosensitive member with depressed portions, process cartridge holding the electrophotographic photosensitive member and electrophotographic apparatus with the electrophotographic photosensitive member Grant 7,718,331 - Uematsu , et al. May 18, 2	2010-05-18
Process for producing electrophotographic photosensitive member Grant 7,622,238 - Uematsu , et al. November 24, 2	2009-11-24
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus Grant 7,563,553 - Kikuchi , et al. July 21, 2	2009-07-21
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus Grant 7,556,901 - Anezaki , et al. July 7, 2	2009-07-07
Process For Producing Electrophotographic Photosensitive Member App 20090170023 - Shimada; Akira ; et al.	2009-07-02
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus Grant 7,551,878 - Ogaki , et al. June 23, 2	2009-06-23
Electrophotographic Photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus Grant 7,534,534 - Nakata , et al. May 19, 2	2009-05-19
Electrophotographic Photosensitive Member, Process Cartridge, And Electrophotographic Apparatus App 20080124637 - Uematsu; Hiroki ; et al.	2008-05-29
Electrophotographic Photosensitive Member, Process Cartridge, And Electrophotographic Apparatus App 20080124126 - Anezaki; Takashi ; et al.	2008-05-29
Process For Producing Electrophotographic Photosensitive Member App 20080096123 - Shimada; Akira ; et al.	2008-04-24
Electrophotographic Photosensitive Member, Process Cartridge, And Electrophotographic Apparatus App 20080019735 - Ogaki; Harunobu ; et al.	2008-01-24
Process For Producing Electrophotographic Photosensitive Member App 20070281239 - Uematsu; Hiroki ; et al.	2007-12-06
Image Forming Method, And Electrophotographic Apparatus Making Use Of The Image Forming Method App 20070254232 - Kawahara; Masataka ; et al.	2007-11-01
Electrophotographic Photosensitive Member Process Cartridge And Electrophotographic Apparatus App 20070178400 - Kikuchi; Toshihiro ; et al.	2007-08-02
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus Grant 7,226,711 - Amamiya , et al. June 5, 2	2007-06-05
Electrophotographic photosensitive member, electrophotographic photosensitive member manufacturing process, process cartridge, and electrophotographic apparatus Grant 7,186,489 - Uematsu , et al. March 6, 2	2007-03-06
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus App 20060019185 - Amamiya; Shoji ; et al.	2006-01-26
Electrophotographic photosensitive member, electrophotographic photosensitive member manufacturing process, process cartridge, and electrophotographic apparatus App 20060008717 - Uematsu; Hiroki ; et al.	2006-01-12
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus App 20050255393 - Nakata, Koichi ; et al.	2005-11-17
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus App 20040043312 - Kikuchi, Toshihiro ; et al.	2004-03-04
Electrophotographic photosensitive member electrophotographic apparatus using same and device unit using same Grant 6,664,014 - Kikuchi , et al. December 16, 2	2003-12-16
Electrophotographic Photosensitve Member, Process For Producing Electrophotographic Photosensitive Member, And Process Cartridge And Electrophotographic Apparatus Which Have The Electrophotographic Photosensitive Member Grant 6,436,597 - Maruyama , et al. August 20, 2	2002-08-20
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus Grant 6,416,915 - Kikuchi , et al. July 9, 2	2002-07-09
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus Grant 6,372,397 - Maruyama , et al. April 16, 2	2002-04-16
Electrophotographic Photosensitive Member, Process For Producing Electrophotographic Photosensitive Member, And Process Cartridge And Electrophotographic Apparatus Which Have The Electrophotographic Photosensitive Member App 20020018953 - MARUYAMA, AKIO ; et al.	2002-02-14
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing the same photosensitive member Grant 6,180,303 - Uematsu , et al. January 30, 2	2001-01-30
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus Grant 6,110,628 - Sekiya , et al. August 29, 2	2000-08-29
Electrophotographic photosensitive member, electrophotographic apparatus and process cartridge Grant 6,016,414 - Anayama , et al. January 18, 2	2000-01-18
Electrophotographic apparatus Grant 5,923,925 - Nakamura , et al. July 13, 1	1999-07-13
Electrophotographic apparatus and process cartridge Grant 5,729,801 - Maruyama , et al. March 17, 1	1998-03-17
Charging system and electrophotography apparatus Grant 5,708,932 - Yano , et al. January 13, 1	1998-01-13
Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus having the same Grant 5,693,443 - Nakamura , et al. December 2, 1	1997-12-02
Electrophotographic photosensitive member Grant 5,677,095 - Kikuchi , et al. October 14, 1	1997-10-14
Electrophotographic apparatus and image forming process Grant 5,667,926 - Maruyama , et al. September 16, 1	1997-09-16
Electrophotographic photosensitive member with overlayer and electrophotographic apparatus employing same Grant 5,455,135 - Maruyama , et al. October 3, 1	1995-10-03
Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same Grant 5,422,210 - Maruyama , et al. June 6, 1	1995-06-06
Image holding member Grant 5,391,446 - Ohtani , et al. February 21, 1	1995-02-21
Electrophotographic photosensitive member Grant 5,391,449 - Maruyama , et al. February 21, 1	1995-02-21
Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same Grant 5,385,797 - Nagahara , et al. January 31, 1	1995-01-31
Image-bearing member and apparatus including same Grant 5,352,552 - Maruyama , et al. October 4, 1	1994-10-04
Optical modulation element Grant 5,327,272 - Fujiwara , et al. July 5, 1	1994-07-05
Organic electronic material and electrophotographic photosensitive member containing same Grant 5,176,976 - Kikuchi , et al. January 5, 1	1993-01-05
Reverse development electrophotographic apparatus and image forming method using a dispersion-type organic photoconductor Grant 4,974,026 - Maruyama November 27, 1	1990-11-27
Photosensitive member having a light receiving layer comprising a carbonic film for use in electrophotography Grant 4,898,798 - Sugata , et al. February 6, 1	1990-02-06
Reduced degradation, high resolution image pickup tube Grant 4,564,784 - Ishioka , et al. January 14, 1	1986-01-14

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