TH

Tomoyasu Hirasawa

Ricoh Company: 50 patents #228 of 9,818Top 3%
Overall (All Time): #54,464 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 26–50 of 50 patents

Patent #TitleCo-InventorsDate
8805231 Cooling device and image forming apparatus including the same Shingo Suzuki, Satoshi Okano, Masanori Saitoh, Keisuke Ikeda, Kenichi Takehara +3 more 2014-08-12
8792800 Cooling device and image forming apparatus including same Hiromitsu Fujiya, Satoshi Okano, Masanori Saitoh, Keisuke Ikeda, Kenichi Takehara 2014-07-29
8737899 Fixing liquid, fixing method, fixing unit, image forming method, and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Tomoaki Sugawara, Takuma Nakamura, Yuko Arizumi 2014-05-27
8725026 Cooling device and image forming apparatus including same Keisuke Ikeda, Satoshi Okano, Masanori Saitoh, Takehara Kenichi, Hiromitsu Fujiya 2014-05-13
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, Masanori Saitoh, Shingo Suzuki, Keisuke Ikeda +3 more 2014-03-25
8682204 Image forming apparatus having heat radiating unit Hiromitsu Fujiya, Kenichi Takehara, Yasuaki Iijima, Keisuke Yuasa, Satoshi Okano +2 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
8571437 Cooling device and image forming apparatus Satoshi Okano, Masanori Saitoh, Shingo Suzuki, Kenichi Takehara, Yasuaki Iijima +2 more 2013-10-29
8521053 Cooling device and image forming apparatus Yasuaki Iijima, Kenichi Takehara, Hiromitsu Fujiya, Takayuki Nishimura, Satoshi Okano +2 more 2013-08-27
8515303 Liquid-cooling type cooling device and image forming apparatus Satoshi Okano 2013-08-20
8412068 Cooling device including a water-absorbing member and image forming device Takayuki Nishimura, Kenichi Takehara, Yasuaki Iijima, Hiromitsu Fujiya, Satoshi Okano +3 more 2013-04-02
8351817 Cooling device and image forming device Masanori Saitoh, Satoshi Okano, Shingo Suzuki, Kenichi Takehara, Yasuaki Iijima +3 more 2013-01-08
8254803 Image forming apparatus including a cooling device Hiromitsu Fujiya, Kenichi Takehara, Yasuaki Iijima, Takayuki Nishimura, Satoshi Okano +2 more 2012-08-28
8165514 Fixing device, and image forming method and image forming apparatus using the same Yasuo Katano, Tsuneo Kurotori, Tomoaki Sugawara, Takuma Nakamura, Yuko Arizumi 2012-04-24
8068759 Image forming apparatus and cooling method used therein Kenichi Takehara, Yasuaki Iijima, Hiromitsu Fujiya, Takayuki Nishimura, Satoshi Okano +2 more 2011-11-29
8019267 Fixer, fixing device, and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Hiromichi Komai 2011-09-13
7989133 Fixing liquid, fixing device using the fixing liquid, and image forming apparatus comprising the fixing device Yasuo Katano, Tsuneo Kurotori, Hiromichi Komai, Takuma Nakamura 2011-08-02
7869754 Bubble creating method, bubble creating device, bubbly fixation fluid producing method, bubbly fixation fluid producing device, fixation fluid, image forming method, and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Takuma Nakamura, Yuko Arizumi 2011-01-11
7813689 Fixing device and image forming apparatus Takuma Nakamura, Yasuo Katano, Tsuneo Kurotori, Takeshi Saitoh, Yuko Arizumi 2010-10-12
7773932 Fixation device, fixation method, image forming apparatus, image forming method and fixation fluid Yasuo Katano, Tsuneo Kurotori, Takuma Nakamura 2010-08-10
7758700 Powder container, cleaning method and cleaning apparatus for cleaning the power container Akihiro Fuchigami, Toshiyuki Mutoh, Yoichi Okamoto, Shigeru Yamada 2010-07-20
7743776 Dry cleaning apparatus and method capable of cleaning the cleaning agent Yoichi Okamoto, Akihiro Fuchigami, Toshiyuki Mutoh, Tatsuya Satoh 2010-06-29
7713673 Fixing liquid, toner fixing method, toner fixing device, image forming method, and image forming apparatus Yasuo Katano, Tsuneo Kurotori, Hiromichi Komai, Takuma Nakamura 2010-05-11
7655374 Fixing liquid, toner fixing method and apparatus, and image forming method and apparatus Yasuo Katano, Tsuneo Kurotori, Hiromichi Komai, Takuma Nakamura 2010-02-02