SY

Seiji Yahagi

SI Seiko Instruments: 5 patents #328 of 1,437Top 25%
SC Seiko Electronic Components: 3 patents #11 of 47Top 25%
Overall (All Time): #1,052,560 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
RE35818 Non-aqueous electrolyte secondary battery and method of producing the same Kensuke Tahara, Hideki Ishikawa, Tsugio Sakai, Akifumi Sakata, Fumiharu Iwasaki 1998-06-02
5620812 Non-aqueous electrolyte secondary battery Kensuke Tahara, Fumiharu Iwasaki, Akifumi Sakata, Tsugio Sakai, Hideki Ishikawa +1 more 1997-04-15
5506075 Non-aqueous electrolyte secondary battery and method of producing the same Fumiharu Iwasaki, Kensuke Tahara, Hideki Ishikawa, Akifumi Sakata, Tsugio Sakai 1996-04-09
5401599 Non-aqueous electrolyte secondary battery and method of producing the same Kensuke Tahara, Hideki Ishikawa, Tsugio Sakai, Akifumi Sakata, Fumiharu Iwasaki 1995-03-28
5395711 Non-aqueous electrolyte secondary battery and its production method Kensuke Tahara, Hideki Ishikawa, Fumiharu Iwasaki, Akifumi Sakata, Tsugio Sakai 1995-03-07