Inventor
IWAMOTO SHIGERU
JP48 patents
⚠️ This page may combine multiple inventors who share the name “IWAMOTO SHIGERU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI OPTICAL CO LTD
27 patentsUS6115553ASep 5, 2000
Multipoint autofocus system
ASAHI OPTICAL CO LTD50 citations96
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
US6427051B1Jul 30, 2002
Controller for controlling a camera having a built-in flash
ASAHI OPTICAL CO LTD22 citations92
US6341202B1Jan 22, 2002
Operation dial with an illuminator for a camera
ASAHI OPTICAL CO LTD22 citations92
US5255046AOct 19, 1993
Camera system
ASAHI OPTICAL CO LTD24 citations89
US5505535AApr 9, 1996
Camera system and photographing lens thereof
ASAHI OPTICAL CO LTD14 citations82
US6249650B1Jun 19, 2001
Single-lens reflex camera
ASAHI OPTICAL CO LTD8 citations74
US6233406B1May 15, 2001
Camera having film winding apparatus
ASAHI OPTICAL CO LTD7 citations74
US5845155ADec 1, 1998
Multipoint autofocusing system
ASAHI OPTICAL CO LTD16 citations74
US5713052AJan 27, 1998
Camera system and photographing lens thereof
ASAHI OPTICAL CO LTD12 citations74
US5416555AMay 16, 1995
Camera system and photographing lens thereof
ASAHI OPTICAL CO LTD8 citations74
US5355192AOct 11, 1994
Automatic focusing apparatus
ASAHI OPTICAL CO LTD10 citations74
US5349409ASep 20, 1994
Photographing lens
ASAHI OPTICAL CO LTD14 citations74
US5274416ADec 28, 1993
Photographing lens
ASAHI OPTICAL CO LTD7 citations74
US5181061AJan 19, 1993
Camera system
ASAHI OPTICAL CO LTD16 citations74
US5170200ADec 8, 1992
Camera system
ASAHI OPTICAL CO LTD16 citations74
US5170203ADec 8, 1992
Camera system
ASAHI OPTICAL CO LTD12 citations74
US5138361AAug 11, 1992
Electronic flash control device employing a plurality of control signals
ASAHI OPTICAL CO LTD8 citations73
US6347189B1Feb 12, 2002
Flash controller of a camera
ASAHI OPTICAL CO LTD3 citations63
US5999753ADec 7, 1999
Single-lens reflex camera
ASAHI OPTICAL CO LTD5 citations63
US5878289AMar 2, 1999
Camera having automatic focusing system
ASAHI OPTICAL CO LTD2 citations63
USRE35196EApr 2, 1996
Electronic flash control device employing a plurality of control signals
ASAHI OPTICAL CO LTD4 citations62
US6321042B1Nov 20, 2001
Camera having film winding apparatus
ASAHI OPTICAL CO LTD1 citations52
US6275660B1Aug 14, 2001
Manual-wind camera
ASAHI OPTICAL CO LTD0 citations52
US6263169B1Jul 17, 2001
Manual-wind camera
ASAHI OPTICAL CO LTD0 citations42
PENTAX CORP
8 patentsUS6718135B2Apr 6, 2004
Flash photography system
PENTAX CORP52 citations92
US6987538B1Jan 17, 2006
Multipoint autofocus system
PENTAX CORP11 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
US6498901B2Dec 24, 2002
Flash photography system
PENTAX CORP8 citations73
US7313323B2Dec 25, 2007
Camera system with a photometering device and an external operating device
PENTAX CORP0 citations52
US7035536B2Apr 25, 2006
Flash control mechanism
PENTAX CORP0 citations42
HOYA CORP
4 patentsUS7589764B2Sep 15, 2009
Focus detection device including reduction of fluctuations due to flickering light
HOYA CORP7 citations74
US7903167B2Mar 8, 2011
Dust removal apparatus of photographing apparatus
HOYA CORP2 citations63
US7432684B2Oct 7, 2008
Mobile equipment with electric power supply control function
HOYA CORP3 citations63
US7512332B2Mar 31, 2009
Camera with superimpose indication function
HOYA CORP1 citations52