Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517643 | Steel having excellent outer surface SCC resistance for pipeline | Hitoshi Asahi, Shigeo Okano, Takahiro Kushida, Yasuyoshi Yamane | 2003-02-11 |
| 6232573 | Titanium alloy sheet and production method thereof | Hiroshi Iizumi | 2001-05-15 |
| 5932036 | Method for manufacturing titanium alloy sheet | — | 1999-08-03 |
| 5718779 | Method for manufacturing A + .beta. type titanium alloy plate having small anisotropy | Toru Izawa, Takayuki Kobayashi | 1998-02-17 |
| 5360677 | Magnetic disk substrate | Hiroyoshi Suenaga, Kuninori Minakawa, Shinichiro Otaka, Masahiko Naoe | 1994-11-01 |
| 5188677 | Method of manufacturing a magnetic disk substrate | Hiroyoshi Suenaga, Kuninori Minakawa | 1993-02-23 |
| 5159787 | Method for lapping two surfaces of a titanium disk | Hiroyoshi Suenaga, Takeshi Ito, Masakuni Takagi, Hiroyoshi Takeuchi, Kuninori Minakawa | 1992-11-03 |
| 5136819 | Method for mirror polishing of ti-made magnetic disk substrate | Masakuni Takagi, Hiroyoshi Takeuchi, Toshio Sakiyama, Hiroyoshi Suenaga, Kuninori Minakawa | 1992-08-11 |
| 5131995 | Method of manufacturing titanium magnetic disk substrate | Hiroyoshi Suenaga, Toshio Sakiyama, Kuninori Minakawa | 1992-07-21 |
| 5120615 | Magnetic disk substrate and method of manufacturing the same | Hiroyoshi Suenaga, Kuninori Minakawa | 1992-06-09 |
| 4990362 | Method of manufacturing a titanium magnetic disk substrate | Hiroshi Kibe, Hiroyoshi Suenaga | 1991-02-05 |