Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7365296 | Light reception output controlling apparatus of photo detector in optical pickup unit | Akira Tsukihashi, Shigeru Nakamura, Misao Kuramochi, Mitsuhiro Hiruma, Michiyoshi Sawada | 2008-04-29 |
| 6715927 | Rolling bearing and bearing apparatus | Hideto Torisawa, Michiyoshi Ishimaru, Akihiko Tomiya | 2004-04-06 |
| 5782135 | Ball screw for vacuum apparatus | Tokumasa Nakamura, Hiroshi Yamada, Masahiro Nobutomo, Michiyoshi Ishimaru | 1998-07-21 |
| 5716140 | Linear ball bushing | Michiyoshi Ishimaru | 1998-02-10 |
| 5605401 | Rolling contact bearing | Michiyoshi Ishimaru | 1997-02-25 |
| 5207513 | Rolling bearing with solid lubricant | Takahiro Mizutani, Norihide Sato, Tasuku Sato | 1993-05-04 |