Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6447955 | Lithium secondary battery with a negative electrode of heat-treated natural graphite | Ryuji Ohshita, Koji Ueno, Koji Nishio, Toshihiko Saitoh | 2002-09-10 |
| 6444290 | Magnetic recording medium comprising a support containing a specific size filler and having a specific concentration of surface protrusions | Hitoshi Noguchi, Junichi Nakamikawa | 2002-09-03 |
| 6395400 | Magnetic recording medium | Hiroo Inaba, Masaki Suzuki, Hiroaki Takano | 2002-05-28 |
| 6372325 | Magnetic recording medium | Kiyomi Ejiri, Koji Naoe | 2002-04-16 |