HY

Hiroshi Yoshinaga

Ricoh Company: 223 patents #2 of 9,818Top 1%
Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
FC Fukuda Metal Foil & Powder Co.: 1 patents #50 of 95Top 55%
SL Sri Sports Limited: 1 patents #123 of 176Top 70%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
IBM: 1 patents #44,794 of 70,183Top 65%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #2,229 of 4,157,543Top 1%
239
Patents All Time

Issued Patents All Time

Showing 1–25 of 239 patents

Patent #TitleCo-InventorsDate
12422766 Fixing device and image forming apparatus incorporating same Takashi Seto, Ryohhei Sugiyama, Ryohei Matsuda, Yoshiki Yamaguchi 2025-09-23
12393141 Fixing device and image forming apparatus Kota Shiodera, Takayuki Andoh, Masahiro Samei, Toshiyuki Kabata 2025-08-19
12353150 Fixing device and image forming apparatus Yoshiki Yamaguchi, Takashi Seto, Ryohei Matsuda, Ryohhei Sugiyama 2025-07-08
12197150 Fixing device and image forming apparatus incorporating the same Ryohei Matsuda, Yoshiki Yamaguchi, Takashi Seto, Ryohhei Sugiyama 2025-01-14
12197155 Heating device, fixing device, and image forming apparatus with heat shield including first portion and second portion Takayuki Andoh, Masahiro Samei, Kota Shiodera, Toshiyuki Kabata, Ryohhei Sugiyama 2025-01-14
12197151 Heating device, fixing device, and image forming apparatus Masahiro Samei, Takayuki Andoh, Kota Shiodera, Toshiyuki Kabata 2025-01-14
12135517 Heating device, nip forming device, and image forming apparatus Masahiro Samei, Takayuki Andoh, Kota Shiodera, Toshiyuki Kabata 2024-11-05
12124197 Heating device, fixing device, and image forming apparatus including lubricant and reflector Takayuki Andoh, Masahiro Samei, Kota Shiodera, Toshiyuki Kabata 2024-10-22
12124194 Heating device, fixing device, and image forming apparatus Ryohhei Sugiyama, Takayuki Andoh, Masahiro Samei, Kota Shiodera 2024-10-22
12117768 Image forming apparatus including a filter for collect foreign substances in air sucked into at least one intake Takayuki Andoh, Masahiro Samei, Kota Shiodera, Toshiyuki Kabata, Tomoyuki Nishikawa 2024-10-15
12072666 Sheet conveying device, fixing device, and image forming apparatus Takahiro Imada, Yoshikuni Sasaki, Hiromasa Takagi, Takuya Seshita, Arinobu Yoshiura 2024-08-27
12072651 Heating device, fixing device, and image forming apparatus Toshiyuki Kabata, Kota Shiodera, Takayuki Andoh, Masahiro Samei 2024-08-27
12013652 Heating device, fixing device, and image forming apparatus including a rotator holder and reflector Daisuke Inoue, Takayuki Andoh, Masahiro Samei, Kota Shiodera 2024-06-18
11959039 Heating device configured to limit a temperature rise of a lubricant, fixing device, and image forming apparatus Takayuki Andoh, Masahiro Samei, Kota Shiodera, Toshiyuki Kabata 2024-04-16
11803143 Nip formation pad, heating device, fixing device, and image forming apparatus Yoshiki Yamaguchi, Ippei Fujimoto, Takashi Seto, Kentaro Yamashita 2023-10-31
11766877 Conveyance device, liquid discharge apparatus, and post-processing apparatus 2023-09-26
11681250 Nip former, fixing device, and image forming apparatus Toshiyuki Kabata, Yoshiki Yamaguchi, Takashi Seto, Kentaro Yamashita, Daisuke Inoue 2023-06-20
11409212 Heating device, fixing device, and image forming apparatus including an airflow path and an outer airflow path 2022-08-09
11353812 Fixing device and image forming apparatus Takamasa Hase, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa 2022-06-07
11099509 Fixing device and image forming apparatus Ippei Fujimoto, Yoshiki Yamaguchi, Takashi Seto 2021-08-24
11003119 Fixing device and image forming apparatus Takamasa Hase, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa 2021-05-11
10935911 Fixing device capable of enhancing durability of endless belt and image forming apparatus incorporating the same Teppei Kawata, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa +13 more 2021-03-02
10928763 Fixing device and image forming apparatus Hiroyuki Shimada, Hitoshi Fujiwara 2021-02-23
10809652 Fixing device and image forming apparatus incorporating the same Tomoya Adachi, Yuusuke Furuichi, Yukimichi Someya, Mitsuko Sugano 2020-10-20
10571837 Fixing device and image forming apparatus Yoshiki Yamaguchi, Ippei Fujimoto, Hiroyuki Shimada, Takayuki Seki, Takashi Seto +1 more 2020-02-25