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Naoyoshi Akiyoshi

TC Toho Kinzoku Co.: 3 patents #1 of 21Top 5%
CC Citizen Watch Co.: 1 patents #668 of 1,225Top 55%
Overall (All Time): #1,633,040 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5905938 Method of manufacturing a semiconductor substrate material 1999-05-18
5889220 Copper-tungsten alloys and their manufacturing methods Kimio Nakada, Katsumi Koda, Hiroyuki Yamabe, Masao Nakayama 1999-03-30
5689796 Method of manufacturing molded copper-chromium family metal alloy article Takao Kasai, Naoto Ogasawara, Takeo Hamada 1997-11-18