Inventor
ISHIBAI ISAO
13 patents
Patents
13 patentsUS4262988AApr 21, 1981
Binoculars with automatic focusing system
HOYA CORP31 citations91
US5166830ANov 24, 1992
Aspherical lens system for a bar code sensor
HOYA CORP52 citations89
US5204781AApr 20, 1993
Infinite large-aperture lens system with aspherical surfaces
HOYA CORP9 citations73
US5002374AMar 26, 1991
Finite conjugation large-aperture lens with aspherical surfaces
HOYA CORP9 citations73
US4776101AOct 11, 1988
Method and apparatus for testing aspherical lenses
HOYA CORP11 citations73
US4650297AMar 17, 1987
Binocular optical system with automatic focusing mechanism
HOYA CORP11 citations73
US5087115AFeb 11, 1992
Aspherical glass lens element suitable for an object lens element of a disk device
HOYA CORP16 citations72
US4488037ADec 11, 1984
Automatic focusing binocular
HOYA CORP8 citations72
US4436386AMar 13, 1984
Binoculars housing
HOYA CORP8 citations72
US4293187AOct 6, 1981
Binocular optical system with automatic focussing
HOYA CORP11 citations72
US4284325AAug 18, 1981
Eye span adjustment mechanism for binoculars
HOYA CORP13 citations72
US5020888AJun 4, 1991
Aspherical glass lens element suitable for a collimator lens
HOYA CORP8 citations71
US5004330AApr 2, 1991
Aspherical glass lens element formed by a low dispersion glass material
HOYA CORP7 citations71