Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428632 | Non-oriented electromagnetic steel sheet having reduced magnetic anisotropy in high frequency region and excellent press workability | Toshiro Fujiyama | 2002-08-06 |
| 6411377 | Optical apparatus for defect and particle size inspection | Minori Noguchi, Yoshimasa Ohshima, Hidetoshi Nishiyama, Shunichi Matsumoto, Yukio Kembo +7 more | 2002-06-25 |
| 6406558 | Method for manufacturing magnetic steel sheet having superior workability and magnetic properties | Mitsumasa Kurosawa, Masaki Kawano, Michiro Komatsubara, Toshiro Fujiyama | 2002-06-18 |
| 6388977 | Hologram laser unit and optical pickup device including the same | Yasuo Nakata | 2002-05-14 |
| 6339562 | Optical pickup device | — | 2002-01-15 |