Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8687999 | Cooling device and image forming apparatus | Satoshi Okano, Kenichi Takehara, Yasuaki Iijima, Hiromitsu Fujiya, Keisuke Yuasa +3 more | 2014-04-01 |
| 8682205 | Cooling device, cooling method, and image forming apparatus | Yasuaki Iijima, Satoshi Okano, Tomoyasu Hirasawa, Masanori Saitoh, Shingo Suzuki +3 more | 2014-03-25 |
| 8606138 | Cooling device having a turbulence generating unit | Satoshi Okano, Takayuki Nishimura, Kenichi Takehara, Yasuaki Iijima, Hiromitsu Fujiya +4 more | 2013-12-10 |
| 8028715 | Check valve for vacuum sewage pipe and vacuum sewage system | Osamu Shimizu, Yuji Hiroto, Fuyuki Ogaki | 2011-10-04 |
| 7152618 | Vacuum station and the method for operating the same | Osamu Shimizu | 2006-12-26 |
| 7142362 | Optical attenuator | Hidenori Nakada, Shusuke Wada, Yuko Ota | 2006-11-28 |
| 7024073 | Reflective variable light attenuator | Teruhisa Sahashi, Hidenori Nakada, Shohei Abe, Isao Kojima | 2006-04-04 |
| 6870675 | Variable optical attenuator | Shohei Abe, Isao Kojima, Yuko Ota, Ikuo Maeda | 2005-03-22 |
| 6313392 | Thermoelectric semiconductor material, thermoelectric element, method of manufacturing these and method of manufacturing thermoelectric module and device for manufacturing thermoelectric semiconductor material | Yasunori Sato, Katsushi Fukuda, Kenichi Tomita, Takeshi Kajihara, Akio Konishi +1 more | 2001-11-06 |