Inventor
FUJIWARA AKIHIRO
JP80 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
45 patentsUS5272538ADec 21, 1993
Exposure control device
CANON KK153 citations99
US5031049AJul 9, 1991
Automatic object image follow-up device
CANON KK187 citations99
US6233009B1May 15, 2001
Image-shake correcting device for detecting vibration frequency and for changing vibration characteristics
CANON KK66 citations96
US6208377B1Mar 27, 2001
Image-shake correcting device for detecting vibration frequency and for changing vibration characteristics
CANON KK58 citations96
US5629735AMay 13, 1997
Image sensing device having a selectable detecting area
CANON KK61 citations96
US5212516AMay 18, 1993
Automatic focus adjusting device
CANON KK77 citations96
US7303289B2Dec 4, 2007
Projection type display apparatus
CANON KK40 citations93
US6734903B1May 11, 2004
Image sensing apparatus
CANON KK42 citations93
US6570620B1May 27, 2003
Exposure control device
CANON KK16 citations93
US6088060AJul 11, 2000
Automatic focusing device
CANON KK37 citations93
US5805212ASep 8, 1998
Vibration correcting apparatus controlling the gain of the control circuit
CANON KK43 citations93
US5677733AOct 14, 1997
Exposure control device having a plurality of light detecting areas
CANON KK36 citations93
US5623309AApr 22, 1997
Automatic focusing device with adaptive signal filtering
CANON KK25 citations93
US5455647AOct 3, 1995
Optical apparatus in which image distortion is removed
CANON KK44 citations93
US5187585AFeb 16, 1993
Image sensing apparatus with settable focus detection area
CANON KK32 citations93
US5128768AJul 7, 1992
Automatic focusing device having a settable focus detection area
CANON KK37 citations93
US4980773ADec 25, 1990
In focus detecting apparatus having a plurality of bandpass filters
CANON KK27 citations93
US6630914B1Oct 7, 2003
Display apparatus having facility for selective indication of apparatus use term
CANON KK20 citations92
US6172707B1Jan 9, 2001
Image pickup device
CANON KK41 citations92
US5672862ASep 30, 1997
Optical apparatus having image shake preventing function
CANON KK49 citations92
US5204749AApr 20, 1993
Automatic follow-up focus detecting device and automatic follow-up device
CANON KK39 citations92
US4591919AMay 27, 1986
Automatic focus control system and camera using same
CANON KK37 citations92
US5061954AOct 29, 1991
Automatic focus adjustment system
CANON KK22 citations91
US11703794B2Jul 18, 2023
Cartridge and image forming apparatus
CANON KK4 citations86
US10627780B2Apr 21, 2020
Cartridge and image forming apparatus
CANON KK9 citations84
USD873341SJan 21, 2020
Process cartridge for image forming apparatus
CANON KK7 citations84
US7148916B2Dec 12, 2006
Photographing system
CANON KK13 citations84
US6999125B2Feb 14, 2006
Image pickup apparatus
CANON KK16 citations84
US6124891ASep 26, 2000
Exposure control device
CANON KK18 citations84
US5619264AApr 8, 1997
Automatic focusing device
CANON KK19 citations84
US10962927B2Mar 30, 2021
Cartridge and imaging forming apparatus
CANON KK5 citations82
US5459542AOct 17, 1995
Image-blur preventing apparatus
CANON KK19 citations82
US5543839AAug 6, 1996
Focus adjusting device wherein effective focal length is derived by detecting low frequency changes in image signals
CANON KK7 citations74
US5442397AAug 15, 1995
Image sensing apparatus
CANON KK18 citations74
US5422671AJun 6, 1995
Automatic focus control by use of component value differences in an image sensing plane
CANON KK15 citations74
US5341169AAug 23, 1994
Video camera apparatus with predictably settable image screen detecting area
CANON KK5 citations74
US5164835ANov 17, 1992
Automatic focusing device
CANON KK10 citations74
US4994920AFeb 19, 1991
Device for focus detection with weightings of the focus detecting signals of plural focus detectors
CANON KK9 citations74
US4760419AJul 26, 1988
Distance measuring apparatus
CANON KK13 citations74
US4723073AFeb 2, 1988
Light emission quantity control device for focus detection
CANON KK8 citations74
US4697904AOct 6, 1987
Automatic focusing system
CANON KK12 citations74
US12072664B2Aug 27, 2024
Cartridge and image forming apparatus
CANON KK2 citations73
US9594342B2Mar 14, 2017
Developer container, developing apparatus, process cartridge, image forming apparatus, and apparatus main body of image forming apparatus
CANON KK3 citations73
US7307599B2Dec 11, 2007
Display apparatus
CANON KK5 citations73
US5291151AMar 1, 1994
Sensor amplifier
CANON KK15 citations73
MAZDA MOTOR
2 patentsTOSHIBA KK
1 patentANAN OSAMU
1 patentFUJITSU TEN LTD
1 patentShowing the top 50 of 80 patents by PatentIndex Score.