IF

Ippei Fujimoto

Ricoh Company: 120 patents #18 of 9,818Top 1%
Overall (All Time): #9,982 of 4,157,543Top 1%
120
Patents All Time

Issued Patents All Time

Showing 1–25 of 120 patents

Patent #TitleCo-InventorsDate
11852994 Fixing device and image forming apparatus incorporating same Yoshiki Yamaguchi 2023-12-26
11803143 Nip formation pad, heating device, fixing device, and image forming apparatus Yoshiki Yamaguchi, Takashi Seto, Hiroshi Yoshinaga, Kentaro Yamashita 2023-10-31
11320767 Heating device, fixing device, and image forming apparatus Toshihiko Shimokawa 2022-05-03
11099509 Fixing device and image forming apparatus Yoshiki Yamaguchi, Takashi Seto, Hiroshi Yoshinaga 2021-08-24
11054774 Nip forming member, fixing device, and image forming apparatus Yoshiharu Takahashi, Naoki Iwaya, Hitoshi Fujiwara, Yoshiki Yamaguchi 2021-07-06
10962908 Heating device, fixing device, and image forming apparatus Yoshiki Yamaguchi 2021-03-30
10942475 Fixing device and image forming apparatus including nip former of specific surface roughness Yoshiki Yamaguchi, Takashi Seto, Hiroyuki Shimada 2021-03-09
10782637 Fixing device and image forming apparatus incorporating same Yoshiki Yamaguchi 2020-09-22
10691049 Fixing device and image forming apparatus Hiroyuki Shimada, Yoshiki Yamaguchi, Takashi Seto, Takayuki Seki 2020-06-23
10571837 Fixing device and image forming apparatus Yoshiki Yamaguchi, Hiroyuki Shimada, Takayuki Seki, Takashi Seto, Yoshiyuki Fukuda +1 more 2020-02-25
10488798 Fixing device with nip former longer than opposed rotator Hiroshi Yoshinaga, Kenji Ishii, Takayuki Seki, Kazunari Sawada, Ryohei Matsuda 2019-11-26
10331062 Image forming apparatus and image forming method Hiroshi Yoshinaga, Kenji Ishii, Hiroyuki Shimada, Takashi Seto, Takayuki Seki +1 more 2019-06-25
10317823 Fixing device and image forming apparatus having a thermal conduction aid contacting a nip formation pad Hiroshi Yoshinaga, Kenji Ishii, Hiroyuki Shimada, Takashi Seto, Takayuki Seki +1 more 2019-06-11
10295939 Fixing device including a pressure rotator and a thermal conduction aid, and image forming apparatus including the fixing device Hiroshi Yoshinaga, Kenji Ishii, Takashi Seto, Takayuki Seki, Kazunari Sawada +1 more 2019-05-21
10295937 Fixing device and image forming apparatus Kazunari Sawada, Kenji Ishii, Hiroyuki Shimada, Takashi Seto, Hiroshi Yoshinaga +1 more 2019-05-21
10289037 Fixing device and image forming apparatus Takayuki Seki, Takashi Seto, Kenji Ishii, Hiroshi Yoshinaga, Kazunari Sawada +1 more 2019-05-14
10281850 Fixing device with nip formation pad having an abutment region and opening portions Ryohei Matsuda, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki, Kazunari Sawada 2019-05-07
10241448 Fixing device and image forming apparatus having nip pad including a center bend line Kazunari Sawada, Kenji Ishii, Takashi Seto, Hiroshi Yoshinaga, Takayuki Seki 2019-03-26
10222732 Fixing device having a lateral end heater and image forming apparatus incorporating same Takayuki Seki, Kenji Ishii, Hiroshi Yoshinaga, Takashi Seto, Kazunari Sawada +1 more 2019-03-05
10197957 Fixing device, image forming apparatus, and fixing device control method Kazunari Sawada, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki, Ryohei Matsuda 2019-02-05
10168653 Fixing device and image forming apparatus incorporating same Ryohei Matsuda, Takayuki Seki 2019-01-01
10082751 Fixing device and image forming apparatus Takashi Seto, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki, Hiroyuki Shimada +2 more 2018-09-25
10042297 Fixing device and image forming apparatus incorporating same Kazunari Sawada, Kenji Ishii, Kazuhito Kishi, Takayuki Seki, Takashi Seto +2 more 2018-08-07
10042295 Fixing device, image forming apparatus, and image forming method Hiroshi Yoshinaga, Kenji Ishii, Kazuhito Kishi, Takashi Seto, Takayuki Seki +2 more 2018-08-07
10025247 Fixing device including a pressure pad with at least one mouth, and image forming apparatus incorporating same Kazunari Sawada, Kenji Ishii, Takashi Seto, Takayuki Seki, Hiroshi Yoshinaga +1 more 2018-07-17