YM

Yutaka Matsumura

Sumitomo Electric Industries: 2 patents #257 of 1,892Top 15%
Overall (1994): #15,247 of 165,921Top 10%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5361318 Optical module having dimensional accuracy Hisao Go 1994-11-01
5275765 Method of manufacturing an optical module using a mold die Hisao Go 1994-01-04