HK

Hidetoshi Katayanagi

KO Konica: 8 patents #304 of 1,958Top 20%
KM Konica Minolta: 8 patents #249 of 1,361Top 20%
KM Konica Minolta: 2 patents #1,382 of 2,718Top 55%
Overall (All Time): #240,017 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10474076 Fixing device and image forming apparatus Masashi Sonoyama, Yoshikazu Kuribayashi, Tomoya Sato, Hiroyuki Maeda 2019-11-12
9170537 Fuser and image forming apparatus Yoshikazu Kuribayashi, Etsuaki Urano, Hirotaka Kanou, Masashi Sonoyama, Tomohiro Takagi 2015-10-27
8320807 Image forming apparatus for forming an image on a sheet at a nip portion formed by rotary bodies Masahiro Onodera, Junichi Hamada, Hiroshi Funabiki 2012-11-27
8032068 Fixing device and image forming apparatus Naohiko Hanyu, Mikihiko Takada 2011-10-04
7773253 Gloss difference control in a plurality of networked image forming apparatus 2010-08-10
7398036 Image forming apparatus and image forming method 2008-07-08
7327979 Image forming apparatus 2008-02-05
7200345 Image forming apparatus with a fixing device employing a plurality of pressing members Hisayoshi Nagase, Tetsuko Kurosu, Makoto Fujii, Naohiko Hanyu, Miho Toyoda 2007-04-03
7187898 Image forming apparatus having a fixing device for fixing toner including wax on a transfer sheet Masami Maruko, Hajime Tanaka, Kazunori Katada, Masashi Saito, Toshiki Hayami 2007-03-06
7142792 Fixing apparatus Hajime Tanaka, Masashi Saito, Toshiki Hayami 2006-11-28
7079802 Fixing device with specific surface roughness Hajime Tanaka, Toshiki Hayami 2006-07-18
6892034 Image-forming apparatus for obtaining clean images Masashi Saito, Shigetaka Kurosu 2005-05-10
6865366 Fixing apparatus equipped with sheet flattener Hajime Tanaka, Toshiki Hayami 2005-03-08
6816699 Fixing device having heat applying rotary body and pressure applying rotary body, and image forming apparatus equipped with the fixing device Hajime Tanaka, Toshiki Hayami 2004-11-09
6782232 Fixing unit for an image forming apparatus Toshiki Hayami, Hajime Tanaka 2004-08-24
6690906 Fixing apparatus and image forming apparatus Hajime Tanaka, Masami Maruko, Toshiki Hayami 2004-02-10
6603932 Image-forming apparatus for obtaining clean images Masashi Saito, Shigetaka Kurosu 2003-08-05
6603947 Fixing device having heat applying rotary body and pressure applying rotary body, and image forming apparatus equipped with the fixing device Hajime Tanaka, Toshiki Hayami 2003-08-05
6529695 Image-forming apparatus Shigetaka Kurosu, Masashi Saito 2003-03-04