Inventor
YAMANAKA TOSHIMASA
JP25 patents
Patents
25 patentsUS4918264AApr 17, 1990
Actuating mechanism and multiposition rubber or membrane switch device
ASAHI OPTICAL CO LTD63 citations96
US4893140AJan 9, 1990
Single-lens reflex camera with built-in flash
ASAHI OPTICAL CO LTD48 citations94
US5917533AJun 29, 1999
Thermal line printer
ASAHI OPTICAL CO LTD20 citations92
US5638104AJun 10, 1997
Thermal line printer
ASAHI OPTICAL CO LTD19 citations92
US5621495AApr 15, 1997
Representation of depth of field in camera
ASAHI OPTICAL CO LTD21 citations92
USD361084SAug 8, 1995
Printer
ASAHI OPTICAL CO LTD35 citations92
USD331576SDec 8, 1992
Barcode scanner
ASAHI OPTICAL CO LTD30 citations92
US5066967ANov 19, 1991
Single-lens reflex camera with built-in flash
ASAHI OPTICAL CO LTD26 citations92
USD319228SAug 20, 1991
Barcode reader
ASAHI OPTICAL CO LTD26 citations92
US5036343AJul 30, 1991
Camera with side-mounted balancer
ASAHI OPTICAL CO LTD23 citations92
US4910542AMar 20, 1990
Single-lens reflex camera with built-in flash
ASAHI OPTICAL CO LTD30 citations92
USD306606SMar 13, 1990
Pair of binoculars
ASAHI OPTICAL CO LTD32 citations92
US5019852AMay 28, 1991
Representation of depth of field in camera
ASAHI OPTICAL CO LTD15 citations82
USD362267SSep 12, 1995
Printer
ASAHI OPTICAL CO LTD17 citations81
US5510875AApr 23, 1996
Representation of depth of field in camera
ASAHI OPTICAL CO LTD7 citations74
US5280319AJan 18, 1994
Exposure control apparatus of camera including exposure factor limit value setting means
ASAHI OPTICAL CO LTD8 citations74
US5065177ANov 12, 1991
SLR camera with auxiliary light emitter
ASAHI OPTICAL CO LTD12 citations74
US4977425ADec 11, 1990
Indicating apparatus within finder of camera
ASAHI OPTICAL CO LTD7 citations74
US4949118AAug 14, 1990
Indicating apparatus within finder of single-lens reflex camera
ASAHI OPTICAL CO LTD12 citations74
US4887114ADec 12, 1989
Back-cover release device for a camera
ASAHI OPTICAL CO LTD10 citations74
USD297242SAug 16, 1988
Telescope
ASAHI OPTICAL CO LTD10 citations74
US5602616AFeb 11, 1997
Exposure control apparatus of camera
ASAHI OPTICAL CO LTD9 citations73
US5485242AJan 16, 1996
Exposure control apparatus of camera
ASAHI OPTICAL CO LTD4 citations63
US5170206ADec 8, 1992
Indicating apparatus within finder of camera
ASAHI OPTICAL CO LTD3 citations63
US5382997AJan 17, 1995
Exposure control apparatus of camera
ASAHI OPTICAL CO LTD5 citations62