Inventor
NAKAYASU HIROFUMI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “NAKAYASU HIROFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
27 patentsUS5612723AMar 18, 1997
Ultrasonic printer
FUJITSU LTD104 citations97
US6714748B1Mar 30, 2004
Image forming apparatus, recording medium in which test-pattern image forming program is recorded, test-pattern image forming method, and skew angle calculation method
FUJITSU LTD71 citations96
US6219508B1Apr 17, 2001
Image forming apparatus with belt mark sensor
FUJITSU LTD42 citations96
US5978626ANov 2, 1999
Image forming apparatus with cover lifting mechanism
FUJITSU LTD81 citations96
US5946537AAug 31, 1999
Printing apparatus with positional offset detection and correction
FUJITSU LTD49 citations96
US6070041AMay 30, 2000
Printing apparatus
FUJITSU LTD50 citations95
US6049690AApr 11, 2000
Printing apparatus
FUJITSU LTD46 citations95
US5798779AAug 25, 1998
Ultrasonic printing apparatus and method in which the phases of the ultrasonic oscillators are controlled to prevent unwanted phase cancellations
FUJITSU LTD127 citations95
US6118463ASep 12, 2000
Positional error correction for color image forming apparatus
FUJITSU LTD73 citations94
US7002701B1Feb 21, 2006
Image formation apparatus and image exposure apparatus
FUJITSU LTD22 citations92
US6366304B1Apr 2, 2002
Thermal correction for image-forming exposure device and method of manufacturing the device
FUJITSU LTD34 citations92
US6321060B1Nov 20, 2001
Printing apparatus
FUJITSU LTD21 citations92
US6038417AMar 14, 2000
Image forming apparatus with cover lifting mechanism
FUJITSU LTD34 citations92
US5499876AMar 19, 1996
Printing apparatus having head gap adjusting device
FUJITSU LTD21 citations91
US5946523AAug 31, 1999
Printing apparatus
FUJITSU LTD24 citations90
US6219496B1Apr 17, 2001
Image forming apparatus
FUJITSU LTD22 citations89
US6393244B1May 21, 2002
Color shift correcting structure of image forming apparatus
FUJITSU LTD15 citations82
US6434347B2Aug 13, 2002
Printing apparatus and toner density measuring method
FUJITSU LTD11 citations74
US6379482B1Apr 30, 2002
Manufacturing device and method of the exposure device
FUJITSU LTD9 citations73
US6330011B1Dec 11, 2001
Electrophotography apparatus and exposure apparatus using particularly shaped light emitting elements
FUJITSU LTD7 citations73
US6292205B1Sep 18, 2001
Electrophotographic apparatus with quantity-of-light control
FUJITSU LTD14 citations73
US5907344AMay 25, 1999
Image forming apparatus with image tone adjusting function
FUJITSU LTD15 citations73
US5732319AMar 24, 1998
Pressure roller having deflection compensating shaft
FUJITSU LTD10 citations73
US5064304ANov 12, 1991
Printer having an ink ribbon shift apparatus
FUJITSU LTD13 citations72
US6340982B1Jan 22, 2002
Image forming apparatus and exposure device thereof
FUJITSU LTD5 citations62
US5120146AJun 9, 1992
Printer having a bail roller opening and closing mechanism
FUJITSU LTD3 citations60
US5071275ADec 10, 1991
Printer having a bail roller opening and closing mechanism
FUJITSU LTD1 citations49