Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12430997 | Disaster prevention apparatus | Keisuke Washizu | 2025-09-30 |
| 12379313 | Fire detection device | Tomohiko Shimadzu, Keisuke Washizu, Yasuharu Fujiwara, Hideki Takano | 2025-08-05 |
| 11761890 | Fire detection device | Tomohiko Shimadzu, Keisuke Washizu, Yasuharu Fujiwara, Hideki Takano | 2023-09-19 |
| 11698340 | Fire detection apparatus | Tomohiko Shimadzu, Keisuke Washizu | 2023-07-11 |
| 11454582 | Sensor | Keisuke Washizu, Tomohiko Shimadzu | 2022-09-27 |
| 11385211 | Detector | — | 2022-07-12 |
| D908519 | Smoke detector | Tomohiko Shimazu, Keisuke Washizu | 2021-01-26 |
| 10360789 | Fire notification system and test method using test jig therefor | David Brown, Kiyoaki Koyama, Hiroyuki Tatsuno, Hiroyuki Kase | 2019-07-23 |
| D814327 | Fire alarm | Adrian Leyshon, Stephen Garnett Cox | 2018-04-03 |
| D809458 | Transformer housing | Miki Yamazaki, Eisuke Maruyama, Ryosuke Mikoshiba, Kenichi Souma | 2018-02-06 |
| D809457 | Transformer housing | Miki Yamazaki, Eisuke Maruyama, Ryosuke Mikoshiba, Kenichi Souma | 2018-02-06 |
| 9601256 | Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer | Kenji Nakanoue, Kazuyuki Fukui, Hidemasa Yamaguchi, Kouhei Satou, Tatsuhito Azegami +8 more | 2017-03-21 |
| 9013263 | Wound iron core for static apparatus, amorphous transformer and coil winding frame for transformer | Kenji Nakanoue, Kazuyuki Fukui, Hidemasa Yamaguchi, Kouhei Satou, Tatsuhito Azegami +8 more | 2015-04-21 |
| 8941505 | Smoke detector | — | 2015-01-27 |
| D700095 | Fire detector | Inderprett Singh Pal, Leonard Manning | 2014-02-25 |
| 8638436 | Smoke sensor | — | 2014-01-28 |
| 7896544 | Heat detector and method of manufacturing heat detecting element | Tetsuya Nagashima, Yoshimi Kawabata, Yasuo Ohmori | 2011-03-01 |
| 7802918 | Heat detector | Tetsuya Nagashima, Yoshimi Kawabata, Yasuo Ohmori | 2010-09-28 |
| 7222518 | Transformer monitoring system | Toshiki Shirahata, Takayiki Kondo | 2007-05-29 |
| 7140237 | Transformer monitoring system | Toshiki Shirahata, Takayuki Kondo | 2006-11-28 |
| 6960987 | Fire alarm system, fire sensor, fire receiver, and repeater | Masahiko Nemoto, Naoto Yamano, Hiroshi Shima, Naoya Matsuoka | 2005-11-01 |
| 6914535 | Light scattering type smoke sensor | Hidenari Matsukuma, Hiroshi Honma, Hiroshi Shima | 2005-07-05 |