Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7180453 | Antenna for portable cellular telephone | Yoshinobu Nakagawa, Masaaki Yamabayashi, Kazumine Koshi, Naoyuki Takagi | 2007-02-20 |
| 6906275 | Movable contact unit, panel switch using the same and electronic equipment having the panel switch | Hiromichi Koyama | 2005-06-14 |
| 6842142 | Antenna and communication equipment incorporating the antenna | Setsuo Takesako, Yoshinobu Nakagawa | 2005-01-11 |
| 6610950 | Push switch | Kenji Kamio, Hisashi Watanabe, Takashi Tomago | 2003-08-26 |
| 6608273 | Push switch | Hisashi Watanabe, Hiromichi Koyama | 2003-08-19 |
| 6518527 | Push switch having reduced size | Hisashi Watanabe | 2003-02-11 |
| 6489580 | Push-on switch, electronic apparatus using the same and method for mounting the switch | Yasunori Yanai, Hisashi Watanabe | 2002-12-03 |
| 6369777 | Antenna device and method for manufacturing the same | Masahiro Ohara, Shinzo Koumoto, Yusuke Ishito, Yasunori Kishimoto, Norihisa Nishida +1 more | 2002-04-09 |
| 6333477 | Switch having improved contact performance | Hiromichi Koyama | 2001-12-25 |
| 6147661 | Helical coil, method of producing same and helical antenna using same | Yoshinobu Nakagawa, Susumu Inatsugu, Masaaki Yamabayashi, Kazuji Ota, Yoshiharu Abe +1 more | 2000-11-14 |
| 5986228 | Movable contact unit for panel switch and panel switch using the same | Yuji Okamoto | 1999-11-16 |
| 5924555 | Panel switch movable contact body and panel switch using the movable contact body | Akira Sadamori, Yuji Okamoto | 1999-07-20 |
| 5895901 | Long-stroke push-on switch with reduced height | Hisashi Watanabe, Yasunori Yanai, Hiroshi Matsui | 1999-04-20 |
| 5845766 | Movable contact element for panel switch and method of manufacturing panel switch with movable contact element | Hiromichi Koyama | 1998-12-08 |