TT

Tetsuya Tatsumi

SO Sony: 3 patents #57 of 1,124Top 6%
Overall (1994): #8,152 of 165,921Top 5%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5368686 Dry etching method for W polycide using sulfur deposition Tetsuji Nagayama 1994-11-29
5362361 Dry etching method 1994-11-08
5354421 Dry etching method Shingo Kadomura, Tetsuji Nagayama 1994-10-11