Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462298 | Long life welding electrode and its fixing structure, welding head and welding method | Tadahiro Ohmi, Takahisa Nitta, Yasuyuki Shirai | 2002-10-08 |
| 6447355 | Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region | Eiichirou Uda, Toshiharu Higuchi, Kiyomi Koyama, Sadao Matsumoto, Yoshiaki Ouchi +3 more | 2002-09-10 |
| 6425042 | Tape drive apparatus for judging an operational mode of the tape based on detected tape management information | Katsumi Ikeda, Masaki Yoshida, Hideto Suzuki, Yoshihisa Takayama, Tatsuya Kato +1 more | 2002-07-23 |
| 6413680 | Optical recording method, optical recording medium, and optical recording system | Osamu Watanabe, Masaaki Tsuchimori, Yoshimasa Kawata, Chikara Egami, Okihiro Sugihara +1 more | 2002-07-02 |