Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6746792 | Fuel cell separator composition, fuel cell separator and method of manufacture, and solid polymer fuel cell | Shun Hasegawa, Yukiko Yano, Kazuo Saito, Atsushi Hagiwara | 2004-06-08 |
| 6686536 | Method of forming electrode section on inner surface of transparent electromagnetic wave shielding plate, and transparent electromagnetic wave shielding plate formed thereby | Masashi Tone, Shun Hasegawa, Yasushi Hasegawa, Yatsuhiro Hasegawa, Shigekazu Hasegawa | 2004-02-03 |
| 6679971 | Front plate for plasma display panels, and method of producing the same | Masashi Tone, Shun Hasegawa, Yasushi Hasegawa, Yatsuhiro Hasegawa, Shigekazu Hasegawa | 2004-01-20 |