Ishigaki; Kouji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ishigaki; Kouji.The latest application filed is for "original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system".

Company Profile

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Ishigaki; Kouji - Yokohama JP
Ishigaki; Kouji - Kanagawa 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
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system Grant 6,272,248 - Saitoh , et al. August 7, 2	2001-08-07
Image forming apparatus with a voltage applying unit for image transfer Grant 6,160,969 - Ishigaki , et al. December 12, 2	2000-12-12
Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system Grant 5,751,854 - Saitoh , et al. May 12, 1	1998-05-12
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function Grant 5,659,628 - Tachikawa , et al. August 19, 1	1997-08-19
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function Grant 5,652,803 - Tachikawa , et al. July 29, 1	1997-07-29
Image forming equipment using a toner cartridge Grant 5,341,196 - Hodoshima , et al. August 23, 1	1994-08-23
Image density control method for an image forming apparatus Grant 5,258,248 - Tokuhashi , et al. November 2, 1	1993-11-02
Toner cartridge for an image forming apparatus Grant 5,122,837 - Sonoda , et al. June 16, 1	1992-06-16
Image forming apparatus which corrects the image forming factors in response to density sensing means and duration of inactive state Grant 5,057,867 - Ishigaki , et al. October 15, 1	1991-10-15
Image density control method for an image forming apparatus Grant 5,028,960 - Yasuda , et al. July 2, 1	1991-07-02
Toner cartridge for an image forming apparatus Grant 4,963,938 - Sonoda , et al. October 16, 1	1990-10-16

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