Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873402 | Push-button switch with plunger and switching mechanism | Mitsuji Hayashi, Takashi Niwa, Akihiko Hayakawa, Hideyuki Bingo | 1989-10-10 |
| 4851623 | Push-button switch | Mitsuji Hayashi, Takashi Niwa, Akihiko Hayakawa, Hideyuki Bingo | 1989-07-25 |
| 4851627 | Compact pressure sensitive switch for use in detecting fluid pressure changes | Takahiro Sakakino, Masatsugu Yamashita | 1989-07-25 |
| 4816630 | Push-button switch with plunger and switch mechanism | Mitsuji Hayashi, Takashi Niwa, Akihiko Hayakawa, Hideyuki Bingo | 1989-03-28 |