RM

Ryohei Matsuda

Ricoh Company: 22 patents #966 of 9,818Top 10%
Overall (All Time): #187,457 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
12422766 Fixing device and image forming apparatus incorporating same Hiroshi Yoshinaga, Takashi Seto, Ryohhei Sugiyama, Yoshiki Yamaguchi 2025-09-23
12353150 Fixing device and image forming apparatus Hiroshi Yoshinaga, Yoshiki Yamaguchi, Takashi Seto, Ryohhei Sugiyama 2025-07-08
12197150 Fixing device and image forming apparatus incorporating the same Yoshiki Yamaguchi, Takashi Seto, Hiroshi Yoshinaga, Ryohhei Sugiyama 2025-01-14
12164249 Fixing device and image forming apparatus incorporating same Kentaro Yamashita 2024-12-10
11662678 Fixing device with controlled heating and image forming apparatus Ryuuichi Mimbu, Toshihiko Shimokawa, Satoshi Kuno, Kentaro Yamanaka 2023-05-30
11287767 Fixing device and image forming apparatus incorporating same 2022-03-29
11054775 Fixing device and image forming apparatus incorporating same Yoshiharu Takahashi, Hitoshi Fujiwara, Naoki Iwaya 2021-07-06
10895834 Fixing device, and image forming apparatus Hiroyuki Shimada 2021-01-19
10571834 Fixing method, image forming method, and image forming apparatus Takamasa Hase, Daisuke Inoue, Teppei Kawata, Akio Takei 2020-02-25
10488798 Fixing device with nip former longer than opposed rotator Hiroshi Yoshinaga, Ippei Fujimoto, Kenji Ishii, Takayuki Seki, Kazunari Sawada 2019-11-26
10295939 Fixing device including a pressure rotator and a thermal conduction aid, and image forming apparatus including the fixing device Hiroshi Yoshinaga, Kenji Ishii, Ippei Fujimoto, Takashi Seto, Takayuki Seki +1 more 2019-05-21
10281850 Fixing device with nip formation pad having an abutment region and opening portions Ippei Fujimoto, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki, Kazunari Sawada 2019-05-07
10222732 Fixing device having a lateral end heater and image forming apparatus incorporating same Takayuki Seki, Kenji Ishii, Hiroshi Yoshinaga, Takashi Seto, Ippei Fujimoto +1 more 2019-03-05
10197957 Fixing device, image forming apparatus, and fixing device control method Ippei Fujimoto, Kazunari Sawada, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki 2019-02-05
10168653 Fixing device and image forming apparatus incorporating same Ippei Fujimoto, Takayuki Seki 2019-01-01
10152006 Fixing device and image forming apparatus Yasunori Ishigaya, Yutaka Ikebuchi, Kazuya Saito, Keitaro Shoji, Hiromasa Takagi +2 more 2018-12-11
10082751 Fixing device and image forming apparatus Takashi Seto, Kenji Ishii, Hiroshi Yoshinaga, Takayuki Seki, Ippei Fujimoto +2 more 2018-09-25
10067449 Fixing device and image forming apparatus Yutaka Ikebuchi, Yasunori Ishigaya, Kazuya Saito, Keitaro Shoji 2018-09-04
10061235 Fixing device and image forming apparatus Keitaro Shoji, Yasunori Ishigaya, Kazuya Saito, Hiromasa Takagi, Ryuuichi Mimbu +1 more 2018-08-28
10025247 Fixing device including a pressure pad with at least one mouth, and image forming apparatus incorporating same Kazunari Sawada, Ippei Fujimoto, Kenji Ishii, Takashi Seto, Takayuki Seki +1 more 2018-07-17
9804546 Fixing device and image forming apparatus Kazuya Saito, Yasunori Ishigaya, Yutaka Ikebuchi, Keitaro Shoji 2017-10-31
9753417 Fixing device including outlet guide member and image forming apparatus thereof Yoshiki Yamaguchi, Yoshio Hattori, Haruyuki Honda, Ryuuichi Mimbu, Toshihiko Shimokawa +4 more 2017-09-05