Inventor
KAWASAKI MASAHIRO
JP171 patents
⚠️ This page may combine multiple inventors who share the name “KAWASAKI MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
33 patentsUS6366737B1Apr 2, 2002
External flash control system
ASAHI OPTICAL CO LTD75 citations96
US6351610B1Feb 26, 2002
External flash control system
ASAHI OPTICAL CO LTD59 citations96
US5093680AMar 3, 1992
Image magnification control device for a camera
ASAHI OPTICAL CO LTD36 citations96
US4945376AJul 31, 1990
Camera having interchangeable lenses
ASAHI OPTICAL CO LTD49 citations96
US4841322AJun 20, 1989
Camera having interchangeable lenses
ASAHI OPTICAL CO LTD62 citations96
US6353711B1Mar 5, 2002
External flash control system
ASAHI OPTICAL CO LTD48 citations93
US5943514AAug 24, 1999
Focusing system
ASAHI OPTICAL CO LTD26 citations93
US5227832AJul 13, 1993
Camera system
ASAHI OPTICAL CO LTD32 citations93
US5182591AJan 26, 1993
Camera system
ASAHI OPTICAL CO LTD23 citations93
US5166717ANov 24, 1992
Camera system
ASAHI OPTICAL CO LTD34 citations93
US5066968ANov 19, 1991
Autofocusing system for a camera
ASAHI OPTICAL CO LTD36 citations93
US5066969ANov 19, 1991
Camera system
ASAHI OPTICAL CO LTD22 citations93
US5065175ANov 12, 1991
Single-lens reflex camera system
ASAHI OPTICAL CO LTD43 citations93
US5036349AJul 30, 1991
Autofocusing system for camera
ASAHI OPTICAL CO LTD26 citations93
US4630121ADec 16, 1986
Automatic focus detecting circuit
ASAHI OPTICAL CO LTD38 citations93
US4479062AOct 23, 1984
Photo-electric conversion device with accumulation time control
ASAHI OPTICAL CO LTD33 citations93
US4410258AOct 18, 1983
Automatic focus detecting device for camera
ASAHI OPTICAL CO LTD33 citations93
US5255046AOct 19, 1993
Camera system
ASAHI OPTICAL CO LTD24 citations89
US5664234ASep 2, 1997
Camera system having power zoom lens
ASAHI OPTICAL CO LTD13 citations82
US5505535AApr 9, 1996
Camera system and photographing lens thereof
ASAHI OPTICAL CO LTD14 citations82
US5428419AJun 27, 1995
Image magnification control device for a camera
ASAHI OPTICAL CO LTD8 citations82
US5367354ANov 22, 1994
Motor driven lens and camera system
ASAHI OPTICAL CO LTD11 citations82
US5331367AJul 19, 1994
Camera system having power zoom lens
ASAHI OPTICAL CO LTD12 citations82
US5315345AMay 24, 1994
Power zoom lens and camera system having same
ASAHI OPTICAL CO LTD12 citations82
US5283607AFeb 1, 1994
Automatic lens control system
ASAHI OPTICAL CO LTD15 citations82
US5255043AOct 19, 1993
Apparatus for maintaining constant image magnification in a camera system
ASAHI OPTICAL CO LTD20 citations82
US5159377AOct 27, 1992
Image magnification control device for a camera
ASAHI OPTICAL CO LTD18 citations82
US5870635AFeb 9, 1999
Focus detecting apparatus of camera
ASAHI OPTICAL CO LTD14 citations74
US5842056ANov 24, 1998
Image magnification control device for a camera
ASAHI OPTICAL CO LTD2 citations74
US5781809AJul 14, 1998
Image magnification control device for a camera
ASAHI OPTICAL CO LTD3 citations74
US5713052AJan 27, 1998
Camera system and photographing lens thereof
ASAHI OPTICAL CO LTD12 citations74
US5541702AJul 30, 1996
Image magnification control device for a camera
ASAHI OPTICAL CO LTD4 citations74
US5450156ASep 12, 1995
Power zoom lens and camera having same
ASAHI OPTICAL CO LTD7 citations74
PENTAX CORP
5 patentsUS6718135B2Apr 6, 2004
Flash photography system
PENTAX CORP52 citations92
US6707992B2Mar 16, 2004
Camera system having a communication system between a camera body and a photographing lens
PENTAX CORP20 citations84
US6826364B2Nov 30, 2004
Zoom flash and flash photography system
PENTAX CORP14 citations83
US6571061B2May 27, 2003
Uniform flash-emission controller
PENTAX CORP13 citations83
US6512890B2Jan 28, 2003
Multi-flash photography system
PENTAX CORP13 citations83
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
4 patentsUS7083107B2Aug 1, 2006
Memory card
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD24 citations92
US6994263B2Feb 7, 2006
IC card
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US7254318B2Aug 7, 2007
Recording apparatus, recording program, and recording method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations90
US6970066B2Nov 29, 2005
Memory card reading/writing apparatus, access method, program and storage medium thereof
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations90
HITACHI LTD
3 patentsUS7145176B2Dec 5, 2006
Active matrix display device
HITACHI LTD34 citations93
US7081641B2Jul 25, 2006
Semiconductor device and manufacturing method thereof
HITACHI LTD36 citations93
US7868323B2Jan 11, 2011
Thin film transistor device, image display device and manufacturing method thereof
HITACHI LTD9 citations84
NISSHO KK
1 patentNIPPON POLYURETHANE KOGYO KK
1 patentASAHI KOGAKU KK
1 patentDAINIPPON PRINTING CO LTD
1 patentIBM
1 patentShowing the top 50 of 171 patents by PatentIndex Score.