TT

Tetuji Takamizawa

Tdk: 1 patents #2,493 of 3,796Top 70%
📍 Sakuho, JP: #1 of 1 inventorsTop 100%
Overall (All Time): #3,823,439 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5209027 Polishing of the rear surface of a stamper for optical disk reproduction Toshihiko Ishida, Hiroyuki Arioka 1993-05-11