Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7640525 | Assisting printed board design process | Harunobu Hirakawa, Tetsuo Kon, Shigeru Isobe, Atsushi Hirano | 2009-12-29 |
| 6402129 | Air damper | — | 2002-06-11 |
| 5290915 | Placenta-derived coagulation inhibitor | Hiroshi Nakao, Takao Nagoya, Yushi Saino, Masahiro Maki | 1994-03-01 |
| 4732891 | Placenta-derived anticoagulating substance, process for preparing same and anticoagulant comprising same as an effective component | Masahiro Maki | 1988-03-22 |
| 4618349 | Grinding wheel manufacturing method | Masahiro Hashimoto | 1986-10-21 |
| 4561863 | Grinding wheel and manufacturing method thereof | Masahiro Hashimoto | 1985-12-31 |