YS

Yoshihiro Sonohara

Ricoh Company: 16 patents #1,360 of 9,818Top 15%
Overall (All Time): #298,774 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
9152104 Image forming apparatus and method capable of improving fixing quality Tadashi Kasai, Shinya Kobayashi, Masakazu Terao, Yoichi Sakurai 2015-10-06
9014580 Image forming apparatus and method capable of improving fixing quality Tadashi Kasai, Shinya Kobayashi, Masakazu Terao, Yoichi Sakurai 2015-04-21
8923713 Image forming apparatus, image forming method, and image forming program Masakazu Terao, Shinya Kobayashi, Tadashi Kasai, Yoichi Sakurai 2014-12-30
8918045 Image glossing apparatus, image glossing method, and recording medium storing image glossing program Yoichi Sakurai, Shinya Kobayashi, Tadashi Kasai, Masakazu Terao 2014-12-23
8761628 Image forming apparatus, image forming method, and image forming program Masakazu Terao, Shinya Kobayashi, Tadashi Kasai, Yoichi Sakurai 2014-06-24
8699904 Fixing device and image forming apparatus capable of suppressing variation image density Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2014-04-15
8655206 Image forming apparatus and image forming method Shinya Kobayashi, Tadashi Kasai, Masakazu Terao 2014-02-18
8565633 Image forming system, and image forming method Shinya Kobayashi, Tadashi Kasai, Masakazu Terao 2013-10-22
8520261 Controller and halftone dot signal generating method capable of controlling glossiness of image Shinya Kobayashi, Kentarou Matsumoto, Akio Tsujita, Masato Iio, Tadashi Kasai +2 more 2013-08-27
8346143 Fixing device and image forming apparatus capable of effectively circulating and applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2013-01-01
8224220 Fixing device and image forming apparatus capable of adjusting amount of oil applied for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2012-07-17
8112022 Fixing device, image forming apparatus, and image fixing method capable of stably applying oil for fixing without adhering oil to sheet Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2012-02-07
8027627 Fixing device and image forming apparatus with improved mechanism for stably applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2011-09-27
8023850 Image forming apparatus capable of stably applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2011-09-20
7945198 Fixing device and image forming apparatus comprising same Teruaki Mitsuya, Takashi Suzuki, Keisuke Kubota, Daisuke Hara 2011-05-17
7548718 Fixing device for fixing an unfixed toner image on a recording medium and image forming apparatus including the fixing device Keisuke Kubota, Teruaki Mitsuya, Takashi Suzuki 2009-06-16