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Yasuji Yamada

HC Hitachi Cable: 1 patents #10 of 53Top 20%
HC Hokkaido Electric Power Co.: 1 patents #1 of 14Top 8%
KC Kyushu Electric Power Co.: 1 patents #1 of 16Top 7%
MI Mitsubishi Cable Industries: 1 patents #5 of 42Top 15%
Sumitomo Electric Industries: 1 patents #603 of 2,038Top 30%
FU Fujikura: 1 patents #3 of 34Top 9%
KC Kansai Electric Power Co.: 1 patents #12 of 48Top 25%
Overall (1997): #9,480 of 185,788Top 6%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5632811 Method of retaining melt of oxide Yasuo Namikawa, Satoshi Koyama, Yuh Shiohara, Shoji Tanaka 1997-05-27
5627142 Method of producing composite metal oxide material Masaru Nakamura, Noriyuki Tatsumi, Jiro Tsujino, Kanshi Ohtsu, Yasuo Kanamori +4 more 1997-05-06
5602081 Method of preparing metal oxide crystal Masaru Nakamura, Minoru Tagami, Yuh Shiohara, Shoji Tanaka 1997-02-11