YA

Yuji Arai

Ricoh Company: 118 patents #21 of 9,818Top 1%
NS Nippon Steel: 30 patents #16 of 4,423Top 1%
TC Taiyo Yuden Co.: 18 patents #59 of 959Top 7%
NM Nippon Steel & Sumitomo Metal: 16 patents #15 of 1,491Top 2%
SI Sumitomo Metal Industries: 13 patents #12 of 1,462Top 1%
SO Sony: 5 patents #7,785 of 25,231Top 35%
NE Nec: 2 patents #5,510 of 14,502Top 40%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
NA Nanao: 1 patents #12 of 27Top 45%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
UC Usui Co.: 1 patents #15 of 34Top 45%
Overall (All Time): #3,263 of 4,157,543Top 1%
202
Patents All Time

Issued Patents All Time

Showing 76–100 of 202 patents

Patent #TitleCo-InventorsDate
9164443 Fixing device and image forming apparatus Toshihiko Shimokawa, Masaaki Yoshikawa, Takayuki Seki, Takeshi Yamamoto, Ryuuichi Mimbu +10 more 2015-10-20
9158250 Fixing device and image forming apparatus Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya +9 more 2015-10-13
9158248 Fixing device and image forming apparatus Masaaki Yoshikawa, Takayuki Seki, Takeshi Yamamoto, Ryuuichi Mimbu, Yutaka Ikebuchi +10 more 2015-10-13
9152106 Fixing device and image forming apparatus including same Yoshiki Yamaguchi, Takayuki Seki, Yutaka Ikebuchi, Shuntaroh Tamaki, Kazuya Saito +10 more 2015-10-06
9146508 Fixing device, image forming apparatus, and fixing method Takahiro Imada, Masaaki Yoshikawa, Takayuki Seki, Takeshi Yamamoto, Ryuuichi Mimbu +10 more 2015-09-29
9141051 Fixing device and image forming apparatus Hiroshi Yoshinaga, Takayuki Seki, Ryuuichi Mimbu, Yutaka Ikebuchi, Yoshiki Yamaguchi +4 more 2015-09-22
9116481 Fixing device including a reflector and image forming apparatus Masaaki Yoshikawa, Takayuki Seki, Hiroshi Yoshinaga, Ryuuichi Mimbu, Takuya Seshita +10 more 2015-08-25
9080223 Steel tube for airbags and a process for manufacturing same Takashi Takano, Takuma KAWAMOTO 2015-07-14
9046839 Fixing device including a heat shield and image forming apparatus Masaaki Yoshikawa, Takayuki Seki, Takeshi Yamamoto, Ryuuichi Mimbu, Yutaka Ikebuchi +11 more 2015-06-02
9046838 Fixing device and image forming apparatus Takayuki Seki, Yoshiki Yamaguchi, Shuntaroh Tamaki, Yutaka Ikebuchi, Kazuya Saito +17 more 2015-06-02
9046837 Fixing device and method, and image forming apparatus incorporating same Yutaka Ikebuchi, Masaaki Yoshikawa, Kenji Ishii, Hiromasa Takagi, Naoki Iwaya +9 more 2015-06-02
9046833 Fixing device and image forming apparatus incorporating same Takayuki Seki, Yoshiki Yamaguchi, Shuntaroh Tamaki, Yutaka Ikebuchi, Kazuya Saito +2 more 2015-06-02
9026025 Fixing device including heating span adjuster, image forming apparatus, and fixing method Ryuuichi Mimbu, Masaaki Yoshikawa, Takayuki Seki, Takeshi Yamamoto, Yutaka Ikebuchi +10 more 2015-05-05
9017494 Method for producing seamless steel pipe for oil wells excellent in sulfide stress cracking resistance Tomohiko Omura, Keiichi Nakamura 2015-04-28
8983353 Fixing apparatus and image forming apparatus Arinobu Yoshiura, Masaaki Yoshikawa, Yoshiki Yamaguchi, Tetsuo Tokuda, Yutaka Ikebuchi +9 more 2015-03-17
8953993 Fixing device and image forming apparatus incorporating same Tetsuo Tokuda, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Hiromasa Takagi +9 more 2015-02-10
8929789 Fixing device with resistance heating element capable of accurately generating heat and image forming apparatus with fixing device Hiroshi Yoshinaga, Masaaki Yoshikawa, Kenji Ishii, Hiromasa Takagi, Naoki Iwaya +9 more 2015-01-06
8903296 Fixing device and image forming apparatus incorporating same Toshihiko Shimokawa, Hiromasa Takagi, Yoshiki Yamaguchi, Arinobu Yoshiura, Tetsuo Tokuda +9 more 2014-12-02
8886090 Fixing device including an engagement-disengagement unit and image forming apparatus equipped with the fixing device Teppei Kawata, Kenji Ishii, Tadashi Ogawa, Arinobu Yoshiura, Toshihiko Shimokawa +12 more 2014-11-11
8873984 Fixing device, image forming apparatus incorporating same, and fixing method Kenji Ishii, Yoshiki Yamaguchi, Arinobu Yoshiura, Toshihiko Shimokawa, Masaaki Yoshikawa +8 more 2014-10-28
8852366 Method for producing steel pipe with excellent expandability Kunio Kondo 2014-10-07
8845830 Method of manufacturing heavy-wall seamless steel pipe Kunio Kondo 2014-09-30
8792797 Fixing device, image forming apparatus, and heater control method Yutaka Ikebuchi, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Hiromasa Takagi +9 more 2014-07-29
8761650 Fixing device and image forming apparatus Hiromasa Takagi, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya +9 more 2014-06-24
8725038 Belt assembly, fixing device, and image forming apparatus incorporating same Yoshiki Yamaguchi, Masaaki Yoshikawa, Kenji Ishii, Hiromasa Takagi, Naoki Iwaya +9 more 2014-05-13