Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462298 | Long life welding electrode and its fixing structure, welding head and welding method | Tadahiro Ohmi, Yasuyuki Shirai, Osamu Nakamura | 2002-10-08 |
| 6456532 | Semiconductor memory device | Tadahiro Ohmi, Tadashi Shibata, Keng Hoong Wee, Takemi Yonezawa, Toshiyuki Nozawa | 2002-09-24 |
| 6436353 | Gas recovering apparatus | Tadahiro Ohmi, Yasuyuki Shirai, Taiji Hashimoto, Kazuhide Ino | 2002-08-20 |
| 6416586 | Cleaning method | Tadahiro Ohmi, Toshihiro Il, Kenji Mori, Toshikazu Abe, Hirosi Arakawa | 2002-07-09 |
| 6357385 | Plasma device | Tadahiro Ohmi, Masaki Hirayama, Haruyuki Takano, Ryu Kaiwara | 2002-03-19 |
| 6348157 | Cleaning method | Tadahiro Ohmi, Kazuhiko Kawada, Mitsunori Nakamori, Toshihiro II | 2002-02-19 |