Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7234483 | Electro-pneumatic air pressure regulator | Toshikazu Aoki, Keiji Tamaki, Katsuo Uematsu, Tomomasa Fujita, Hiroshi Chinda +2 more | 2007-06-26 |
| 7125008 | Air-spring vibration isolation device | Akihiro Hayashi, Keiji Tamaki | 2006-10-24 |
| 6935603 | Vibration isolation table | Toshikazu Aoki, Keiji Tamaki, Katsuo Uematsu, Tomomasa Fujita, Hiroshi Chinda +1 more | 2005-08-30 |
| 6877711 | Vibration isolation table | Toshikazu Aoki, Keiji Tamaki, Katsuo Uematsu, Tomomasa Fujita, Hiroshi Chinda +1 more | 2005-04-12 |
| 4903939 | Pneumatically-operated valve | Ryozo Ariizumi, Toshikazu Aoki, Shoji Suda, Mitsunori Hoshi, Takashi Ejiri | 1990-02-27 |
| 4875500 | Diaphragm type of pilot operated directional control valve | Ryozo Ariizumi, Shoji Suda, Toshikazu Aoki, Takashi Ejiri, Masao Kojima +1 more | 1989-10-24 |
| 4840347 | Pneumatically-operated valve | Ryozo Ariizumi, Toshikazu Aoki, Shoji Suda, Mitsunori Hoshi, Takashi Ejiri | 1989-06-20 |
| 4823834 | Diaphragm type of pilot operated directional control valve | Ryozo Ariizumi, Shoji Suda, Toshikazu Aoki, Takashi Ejiri, Masao Kojima +1 more | 1989-04-25 |
| 4821776 | Air pilot operated directional control valve | Rozo Ariizumi | 1989-04-18 |
| 4765370 | Directional control valve | Ryozo Ariizumi, Sohji Suda, Toshikazu Aoki, Masao Kojima, Takashi Ejiri | 1988-08-23 |
| 4744388 | Diaphragm type of pilot operated directional control valve | Ryozo Ariizumi, Shoji Suda, Toshikazu Aoki, Takashi Ejiri, Masao Kojima +1 more | 1988-05-17 |