ZN

Zenjiro Nakai

CC Chichibu Cement Co.: 4 patents #3 of 80Top 4%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #1,295,332 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5369067 Composite substrates and their production Morhudun G. M. U. Ismail, Hiroshi Arai 1994-11-29
5229093 Method for making mullite whiskers using hydrofluoric acid M. G. M. U. Ismail, Hiroshi Arai 1993-07-20
5045514 Sol-gel method for making composite mullite/cordierite ceramics M. G. M. U. Ismail, Hideo Tsunatori 1991-09-03
4769351 Hydrothermal process for preparing zirconia-alumina base ultra-fine powders of high purity Shigeyuki Soumiya, Masahiro Yoshimura, Kazumitsu Hishinuma, Takao Kumaki 1988-09-06