Inventor
YAMASITA NOBUO
JP7 patents
Patents
7 patentsUS4801792AJan 31, 1989
Endoscope
OLYMPUS OPTICAL CO144 citations97
US4138192AFeb 6, 1979
Foward-oblique viewing optical system
OLYMPUS OPTICAL CO49 citations91
US4059344ANov 22, 1977
Retrofocus-type objective for endoscopes
OLYMPUS OPTICAL CO41 citations91
US4113354ASep 12, 1978
Single-lens reflex optical system for an endoscope
OLYMPUS OPTICAL CO21 citations81
US4042295AAug 16, 1977
Retrofocus-type objective for endoscopes
OLYMPUS OPTICAL CO31 citations81
US4165917AAug 28, 1979
Objective for endoscopes
OLYMPUS OPTICAL CO16 citations69
US4387969AJun 14, 1983
Single-lens reflex optical system for endoscopes
OLYMPUS OPTICAL CO5 citations62