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 patentsUS6396615B1May 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 patentsUS6636340B1Oct 21, 2003
Multi-beam scanning device
PENTAX CORP17 citations92
US6873466B2Mar 29, 2005
Scanning optical system
PENTAX CORP13 citations84
US7006269B2Feb 28, 2006
Multi-beam scanning device
PENTAX CORP9 citations74
US7002759B2Feb 21, 2006
Lens unit for multibeam scanning device
PENTAX CORP7 citations74
US7379220B2May 27, 2008
Multi-beam color scanning device
PENTAX CORP2 citations63
US6922268B2Jul 26, 2005
Multi-beam scanning device
PENTAX CORP5 citations63
US6885485B2Apr 26, 2005
Multibeam scanning device
PENTAX CORP3 citations63
US6690496B2Feb 10, 2004
Multi-beam scanning device
PENTAX CORP5 citations63
US6781728B2Aug 24, 2004
Multi-beam scanning device
PENTAX CORP5 citations62
US7084896B2Aug 1, 2006
Multi-beam scanning device
PENTAX CORP0 citations42