Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7158119 | Track ball device and electronic apparatus using the same | Tamotsu Yamamoto, Masaki Nakase, Toyoshi Fukumura | 2007-01-02 |
| 6909422 | Track ball device and electronic apparatus using the same | Tamotsu Yamamoto, Masaki Nakase, Toyoshi Fukumura | 2005-06-21 |
| 6864679 | Rotary manipulation type input device and electronic apparatus using the same | Tamotsu Yamamoto | 2005-03-08 |
| 6396006 | Pressing and rotating operation type electronic parts and communication terminal equipment using the electronic parts | Koji Tamano, Hiroshi Matsui | 2002-05-28 |
| 6229103 | Electronic component with built-in push switch driven by rotary and pushing operation of an operating knob | Tamotsu Yamamoto, Hiroto Inoue, Hiroshi Matsui, Keiji Kaizaki, Koji Tamano | 2001-05-08 |
| 5613600 | Rotatively-operated electronic component with push switch | Hiroshi Matsui, Tamotsu Yamamoto, Kazuhiro Enokido, Yutaka Yamagishi | 1997-03-25 |
| 5593023 | Rotatively-operated electronic component with push switch | Keiji Kaizaki, Tamotsu Yamamoto, Hiroto Inoue, Hiroshi Matsui | 1997-01-14 |