KO

Kazumasa Okuma

HH Hitachi High-Technologies: 1 patents #674 of 1,200Top 60%
Overall (All Time): #2,492,735 of 4,157,543Top 60%
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Patent #TitleCo-InventorsDate
11961719 Vacuum processing method Nozomu YOSHIOKA, Takao Arase 2024-04-16