Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448924 | System for monitoring behavior of rotary body | Yuji Yamauchi | 1995-09-12 |
| 5067733 | Mechanical seal including a split seal ring | Mitsuyoshi Matsushita, Yuji Yamauchi | 1991-11-26 |
| 5066134 | Fluid agitator | Hiroshi Ohbori, Yuji Yamauchi, Sanjiro Nagai, Mitsuyoshi Matsushita | 1991-11-19 |
| 4997192 | Mechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing same | Mitsuyoshi Matsushita, Osamu Ishibashi, Kiyoshi Terasaki, Kei Tokumoto | 1991-03-05 |
| 4982373 | Fluid agitator | Sanjiro Nagai, Mitsuyoshi Matsushita, Hiroshi Ohbori, Yuji Yamauchi | 1991-01-01 |
| 4925490 | Mechanical seal using pore-dispersed material, and pore-dispersed cemented carbide and method for manufacturing same | Mitsuyoshi Matsushita, Osamu Ishibashi, Kiyoshi Terasaki, Kei Tokumoto | 1990-05-15 |
| 4545588 | Mechanical face seal for sealing slurry liquid | Kazuya Fukuoka | 1985-10-08 |
| 4463957 | Sealing device for rotary shaft and string-like member for defining spiral therefor | Yoshiro Imai | 1984-08-07 |