Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6483053 | Lock switch apparatus | Hidemitu Takenaka, Yoshihito Koshiba, Mitumi Kobayashi, Masaharu Hibi | 2002-11-19 |
| 6459052 | Key unit and switch body and door switch using the same | Takashi Niwa, Hidemitsu Takenaka, Yasuo Isa | 2002-10-01 |