Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8442696 | Gas meter and gas safety system | Mitsuo Yokohata, Hirozumi Nakamura, Tadanori Shirasawa, Kazuo Kubo, Hisashi Saito | 2013-05-14 |
| 8250932 | Gas meter and gas security system | Mitsuo Yokohata, Hirozumi Nakamura, Tadanori Shirasawa, Kazuo Kubo, Hisashi Saito | 2012-08-28 |
| 8166999 | Gas block device and gas block method | Kouichi Ueki, Shigetada Sazawa, Kazutaka Hamada, Fujio Hori, Sadamu Kawashima +3 more | 2012-05-01 |
| 5866802 | Piping leakage detecting apparatus | Kunio Kimata, Yasukiyo Ueda, Shinichi Nakane | 1999-02-02 |
| 5866803 | Gas leakage detection system | Tsuneo Asayama, Satoshi Takahashi | 1999-02-02 |
| 5261268 | Gas leak detection system | — | 1993-11-16 |
| 4881948 | Gas shutoff apparatus | Shinichi Nakane, Takashi Uno, Hiroshi Horii, Shinzo Kato, Reppei Uematsu | 1989-11-21 |