Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902542 | Method of producing silicon nitride ceramics having thermal high conductivity | Kiyoshi Hirao, Koji Watari, Motohiro Toriyama, Syuzo Kanzaki | 1999-05-11 |
| 5849116 | Production method for steel material and steel pipe having excellent corrosion resistance and weldability | Akihiro Miyasaka, Takashi Motoyoshi | 1998-12-15 |
| 5837633 | Method for production of aluminum nitride sintered body and aluminum nitride powder | Motohiro Toriyama, Kiyoshi Hirao, Masayoshi Ohashi, Syuzo Kanzaki | 1998-11-17 |
| 5820703 | Production method of steel pipe excellent in corrosion resistance and weldability | Yasushi Suzuki, Akihiro Miyasaka | 1998-10-13 |
| 4660884 | Reclining chair | Mituru Terui, Noriji Morooka | 1987-04-28 |