Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835215 | Non-aqueous secondary battery and a method of manufacturing graphite powder | Hidetoshi Honbo, Seiji Takeuchi, Tatsuo Horiba, Yasushi Muranaka, Yoshito Ishii | 2004-12-28 |
| 6804043 | Non-linear optical thin film, non-linear optical device using the same, and optical switch using the same | Mitsutoshi Honda, Yuichi Sawai, Hiroyuki Akata, Takashi Naito | 2004-10-12 |