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 1–25 of 50 patents

Patent #TitleCo-InventorsDate
11371783 Loop heat pipe, cooling device, and electronic device Kiyotada Katoh, Takeshi Endoh, Takashi Tanaka, Toshihiko Baba, Keisuke Ikeda +1 more 2022-06-28
11187468 Loop heat pipe wick, loop heat pipe, cooling device, and electronic device, and method for manufacturing porous rubber and method for manufacturing loop heat pipe wick Kiyotada Katoh, Norihiko Aze, Takeshi Endoh 2021-11-30
10071586 Light irradiation apparatus and information rewritable system Masataka Uehira, Kohji Sakai, Tomomi Ishimi 2018-09-11
9864334 Cooling device and image forming apparatus including same Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda +4 more 2018-01-09
9707792 Cooling device, laser device, and image processing apparatus 2017-07-18
9513598 Cooling device and image forming apparatus Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa 2016-12-06
9483018 Cooling device and image forming apparatus including same Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Yutaka Shoji +6 more 2016-11-01
9465358 Cooling device and image forming apparatus including same Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda +4 more 2016-10-11
9423730 Cooling device and image forming apparatus including same Keisuke Ikeda, Satoshi Okano, Masanori Saitoh, Takehara Kenichi, Hiromitsu Fujiya 2016-08-23
9400485 Cooling device having a turbulence generating unit Satoshi Okano, Takayuki Nishimura, Kenichi Takehara, Yasuaki Iijima, Hiromitsu Fujiya +4 more 2016-07-26
9372465 Cooling device and image forming apparatus including same Keisuke Ikeda, Yutaka Shoji, Kenji Ishii, Takeshi Watanabe, Susumu Tateyama +2 more 2016-06-21
9360838 Cooling device and image forming apparatus incorporating same Hiroaki Miyagawa, Satoshi Aizawa, Susumu Tateyama 2016-06-07
9360837 Air-conditioning unit, image forming apparatus incorporating same, and air-conditioning channel switching method Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Keisuke Ikeda 2016-06-07
9354601 Liquid cooling device that arranges a coolant flowing direction in accordance with a temperature gradient of a cooling airflow and image forming apparatus incorporating the same Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Kenji Ishii, Susumu Tateyama +2 more 2016-05-31
9348311 Recording medium conveyor and image forming apparatus incorporating same Takeshi Watanabe, Kenji Ishii, Keisuke Ikeda 2016-05-24
9335676 Image forming apparatus Hiroaki Miyagawa, Keisuke Ikeda, Susumu Tateyama, Kenji Ishii 2016-05-10
9296235 Cooling device and image forming apparatus Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa 2016-03-29
9217979 Cooling device and image forming apparatus including same Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Yutaka Shoji +6 more 2015-12-22
9098024 Cooling device and image forming apparatus including same Keisuke Ikeda, Satoshi Okano, Masanori Saitoh, Takehara Kenichi, Hiromitsu Fujiya 2015-08-04
9063482 Cooling device and image forming apparatus Keisuke Ikeda, Masanori Saitoh 2015-06-23
9044982 Cooling device and image forming apparatus Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa 2015-06-02
9046858 Cooling device and image forming apparatus including same Keisuke Ikeda, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda +4 more 2015-06-02
9046872 Cooling device and image forming apparatus incorporating same Keisuke Ikeda, Makoto Nakura, Susumu Tateyama, Hiroaki Miyagawa, Yasuaki Toda +6 more 2015-06-02
8977159 Image forming apparatus Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Keisuke Ikeda, Yasuaki Toda 2015-03-10
8879945 Cooling device and image forming apparatus Hiomitsu Fujiya, Satoshi Okano, Masanori Saitoh, Keisuke Ikeda, Kenichi Takehara +2 more 2014-11-04