YK

Yasuharu Kawarasaki

Ricoh Company: 12 patents #1,888 of 9,818Top 20%
Overall (All Time): #415,419 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
10317828 Fixing device including a nip formation pad with a porous structure, and image forming apparatus incorporating same Yutaka Naitoh, Seiji Saitoh, Kenta Kashiwagi, Masahiro Samei 2019-06-11
10248055 Fixing device including a lubricant holder and image forming apparatus Yutaka Ikebuchi, Takuya Seshita, Kohichi Utsunomiya 2019-04-02
9740147 Separator, fixing device, and image forming apparatus Hitoshi Fujiwara, Tomoya Adachi, Tomohiko Fujii, Masahiro Samei, Yutaka Naitoh +3 more 2017-08-22
9599938 Image forming apparatus and image forming method for controlling a primary heating and a secondary heating of a fixing device Masahiro Samei, Tomoya Adachi, Daisuke Inoue, Yoshiharu Takahashi 2017-03-21
9342044 Fixing device and image forming apparatus and method of assembling the fixing device Yutaka Naitoh, Tomohiko Fujii, Minoru Toyoda, Hitoshi Fujiwara, Tomoya Adachi +3 more 2016-05-17
9274465 Image forming apparatus with a heater controller and image forming method to control heating Masahiro Samei, Tomoya Adachi, Daisuke Inoue, Yoshiharu Takahashi 2016-03-01
9261835 Fixing device and image forming apparatus Tomoya Adachi, Yutaka Naitoh, Hitoshi Fujiwara, Masahiro Samei 2016-02-16
9182709 Fixing device, image forming apparatus with same, and method of assembling fixing device Yutaka Naitoh, Shigeo Nanno, Tomohiko Fujii, Minoru Toyoda, Hitoshi Fujiwara +2 more 2015-11-10
9164435 Fixing device and image forming apparatus Tomoya Adachi, Atsushi Takehara, Tomohiko Fujii, Yutaka Naitoh, Minoru Toyoda +9 more 2015-10-20
9104150 Fixing unit, image forming apparatus incorporating the fixing unit, and image forming method Minoru Toyoda, Tomohiko Fujii, Tomoya Adachi, Yutaka Naitoh, Yoshiharu Takahashi +1 more 2015-08-11
9052652 Fixing device including a friction reducer and an image forming apparatus including the fixing device Tomohiko Fujii, Shigeo Nanno, Minoru Toyoda, Hitoshi Fujiwara, Tomoya Adachi 2015-06-09
9046843 Fixing device and image forming apparatus Tomohiko Fujii, Shigeo Nanno, Yutaka Naitoh, Minoru Toyoda, Hitoshi Fujiwara +1 more 2015-06-02