Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646792 | Light amplifier and light transmission system using the same | — | 2003-11-11 |
| 6638334 | Sliding contact material comprising Ag-Ni based alloy having Ni metal particles dispersed and clad composite material, and Dc compact motor using the same | Takemasa Honma, Yasuhiro Hashimoto, Osamu Sakaguchi, Kengo Taneichi, Toshiya Yamamoto | 2003-10-28 |
| 6521376 | Non-aqueous liquid electrolyte cell | Tadashi Sakata, Yoshifumi Sakamoto, Masanori Sugano, Akira Asada, Megumu Takai | 2003-02-18 |