Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7112377 | Magnetic recording medium, method of manufacturing the same, magnetic medium substrate employed in the magnetic recording medium, and magnetic storage unit | Ken-ichi Itoh, Tsugio Kumai | 2006-09-26 |
| 5519490 | Condensation nucleus type device for counting particles in gas utilizing heating means on the connection pipe and measuring chamber | Shigenori Nakata, Seisaku Kamiya | 1996-05-21 |
| 4435973 | Method of producing ring-shaped metal parts | Shigeo Nakazawa | 1984-03-13 |
| 4226060 | Floor plate for forming a foot path and method of laying a walking surface on a roof | — | 1980-10-07 |