Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4775270 | Impeller of centrifugal fluid-type rotary machine and manufacturing method thereof | Kazuzo Katayama, Ken Fujita | 1988-10-04 |
| 4754118 | Method for fabricating a structural assembly having narrow gaps | Yasuhiro Fukaya, Nagio Minami, Hiroshi Ishitani, Hiroshi Kondo, Tamotu Oka +1 more | 1988-06-28 |
| 4720243 | Impeller of centrifugal fluid-type rotary machine | Kazuzo Katayama, Ken Fujita | 1988-01-19 |
| 4436554 | High strength and high toughness welding material | Takashi Omae, Kisaburoo Tanaka, Masahiro Aoki, Fumitoshi Hirayama | 1984-03-13 |