RY

Ryuichi Yoshiyama

MC Mitsubishi Chemical: 5 patents #358 of 3,022Top 15%
Overall (All Time): #1,017,913 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8178397 Field effect transistor Shinji Aramaki, Akira Ohno, Yoshimasa Sakai 2012-05-15
6217970 Magnetic recording medium, method of producing the same, and recording and reading-out method Yoji Arita, Yuzo Seo, Junichi Kozu, Toshihiko Kuriyama, Mitsunori Mochida 2001-04-17
6078385 Method of inspecting magnetic disc and apparatus therefor and process for producing the magnetic disc Takashi Yamauchi 2000-06-20
5981902 Texturing apparatus for magnetic recording medium and magnetic recording medium process thereby Yoji Arita, Yuzo Seo, Toshihiko Kuriyama 1999-11-09
5928759 Magnetic recording medium, method of producing the same, and recording and reading-out method Yoji Arita, Yuzo Seo, Junichi Kozu, Toshihiko Kuriyama, Mitsunori Mochida 1999-07-27