AS

Akira Shibata

UN Unknown: 2 patents #56 of 2,033Top 3%
HI Hitachi: 1 patents #856 of 3,149Top 30%
SC Sumitomo Metal Mining Co.: 1 patents #2 of 26Top 8%
Overall (1994): #14,926 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5358585 Process of producing silver-or silver-copper alloy-metal oxide composite material 1994-10-25
5337199 Digital transmission signal processing system and recording/reproducing system Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani 1994-08-09
5286441 Silver-metal oxide composite material and process for producing the same 1994-02-15