Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8506156 | Device for diluting viscous substance | Osamu Tsubouchi | 2013-08-13 |
| 5230878 | Carbon black for tire tread rubber | Kiyonari Nakai | 1993-07-27 |
| 5053278 | Carbonaceous granular heat insulator and process for preparing the same | Toshio Nakada, Masao Ishiwata | 1991-10-01 |
| 4995999 | Method of producing magnetic carbon black | Toshio Nakada, Yoshihito Sema, Kazuhito Kataoka | 1991-02-26 |
| 4900465 | Process for preparing magnetic carbon black | Toshio Nakada, Yoshihito Sema, Kazuhito Kataoka | 1990-02-13 |
| 4888215 | Carbonaceous granular heat insulator and process for preparing the same | Toshio Nakada, Masao Ishiwata | 1989-12-19 |