TT

Toshihiko Tutumi

DC Daido Metal Company: 1 patents #166 of 280Top 60%
MI Mitsui Toatsu Chemicals, Incorporated: 1 patents #880 of 1,543Top 60%
Overall (All Time): #2,318,347 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5039575 Single body and composite sliding members Sanae Mori, Masaaki Sakamoto, Atushi Hoda, Teruo Imai, Yoshihisa Gotoh 1991-08-13
4784772 Method for the production and use of ultrapure water and apparatus therefor Yoshihisa Gotoh, Toshiaki Takahashi, Katsuhiko Ito 1988-11-15