Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8496718 | Silicon nitride cutting tool | Takashi Watanabe, Tatsuyuki Nakaoka, Shuichi Tateno, Hiroshi Yoshimitsu | 2013-07-30 |
| 7749932 | Composition, sintered product of silicon nitride, article of manufacture, and cutting method | Shuichi Tateno, Hiroshi Yoshimitsu, Takashi Watanabe, Tatsuyuki Nakaoka | 2010-07-06 |
| 7510785 | Corrosion-resistant silicon nitride ceramics | Sazo Tsuruzono, Isao Yuri, Tohru Hisamatsu | 2009-03-31 |
| 6682821 | Corrosion-resistant ceramics | Sazo Tsurudono, Tohru Hisamatsu, Isao Yuri | 2004-01-27 |
| 6645649 | Surface-coated sintered body of silicon nitride | Koichi Tanaka | 2003-11-11 |
| 6297184 | Sintered product of silicon nitride | Masahiro Sato, Katsushi Sakaue | 2001-10-02 |
| 5958813 | Semi-insulating aluminum nitride sintered body | Hiroshi Aida, Yumiko Ito, Kazuhiko Mikami | 1999-09-28 |
| 5919719 | Silicon nitride sintered body | Masahiro Sato, Katsushi Sakaue | 1999-07-06 |