P

Inventor

HAMA YOSHIHIRO

JP32 patents
⚠️ This page may combine multiple inventors who share the name “HAMA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ASAHI OPTICAL CO LTD

19 patents
US6396615B1May 28, 2002

Multi-beam scanning optical system

ASAHI OPTICAL CO LTD24 citations92
US6392773B1May 21, 2002

Multi-beam scanning optical system

ASAHI OPTICAL CO LTD25 citations92
US6317245B1Nov 13, 2001

Multi-beam scanning optical system

ASAHI OPTICAL CO LTD33 citations92
US4890132ADec 26, 1989

Manual control apparatus of zoom lens barrel for an auto focus camera

ASAHI OPTICAL CO LTD26 citations92
US4506959AMar 26, 1985

Zoom lens assembly with switching mechanism from or to zooming photographing to or from macro photographing

ASAHI OPTICAL CO LTD37 citations92
US5621562AApr 15, 1997

Optical Scanning device

ASAHI OPTICAL CO LTD19 citations84
US5592337AJan 7, 1997

Mirror fastener for optical scanning device

ASAHI OPTICAL CO LTD19 citations84
US5825403AOct 20, 1998

Optical scanning system and method for setting curvature of field therein

ASAHI OPTICAL CO LTD10 citations74
US5712719AJan 27, 1998

Optical scanning device

ASAHI OPTICAL CO LTD16 citations74
US5033821AJul 23, 1991

Element selecting device

ASAHI OPTICAL CO LTD14 citations74
US4487482ADec 11, 1984

Stop down structure for facsimile zoom lens

ASAHI OPTICAL CO LTD16 citations74
US4473278ASep 25, 1984

Aperture structure in zoom lens

ASAHI OPTICAL CO LTD7 citations74
US4417281ANov 22, 1983

Image magnification control mechanism for facsimile zoom lens

ASAHI OPTICAL CO LTD12 citations74
US4652931AMar 24, 1987

Optical system for TTL automatic focusing video camera

ASAHI OPTICAL CO LTD11 citations73
US6084696AJul 4, 2000

Laser scanning optical system

ASAHI OPTICAL CO LTD5 citations63
US5231537AJul 27, 1993

Element selecting device

ASAHI OPTICAL CO LTD5 citations63
US5033820AJul 23, 1991

Element selecting device and elements comprising a plurality of optical filter units

ASAHI OPTICAL CO LTD5 citations63
US4473281ASep 25, 1984

Compensating mechanism for zoom lens

ASAHI OPTICAL CO LTD2 citations63
US4518238AMay 21, 1985

Rotation control mechanism for diaphragm-operating ring in interchangeable objective for photographic camera

ASAHI OPTICAL CO LTD1 citations52

PENTAX CORP

10 patents

HOYA CORP

2 patents

ASHAI KOGAKU KOGYO KABUSHIKI K

1 patent