Inventor · disambiguated record
Shiyouichi Yamaka
Also filed as: YAMAKA SHIYOUICHI
3 granted patents·285 citations·filing 1981–1984
75Inventor score
Top patents by PatentIndex Score
3 records- 0186US4483326ACurvature control mechanism in endoscopesMEDOS KENKYUSHO KK·Filed 1982·Granted Nov 20, 1984·250 cites·10 claims
- 0257US4365883AFocusing screen holding deviceASAHI OPTICAL CO LTD·Filed 1981·Granted Dec 28, 1982·6 cites·3 claims
- 0348US4589403AApparatus for cleaning and sterilizing a guide tube for a forceps-control member operating wire in an endoscopeMEDOS KENKYUSHO KK·Filed 1984·Granted May 20, 1986·29 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →