Inventor

YAMAKA SHIYOUICHI

JP3 patents

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

MEDOS KENKYUSHO KK

2 patents

US4483326ANov 20, 1984

Curvature control mechanism in endoscopes

MEDOS KENKYUSHO KK250 citations96

US4589403AMay 20, 1986

Apparatus for cleaning and sterilizing a guide tube for a forceps-control member operating wire in an endoscope

MEDOS KENKYUSHO KK29 citations91

ASAHI OPTICAL CO LTD

1 patent

US4365883ADec 28, 1982

Focusing screen holding device

ASAHI OPTICAL CO LTD6 citations61