Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JU

Junji Ujihara

KOKonica: 4 patents #638 of 1,958Top 35%
KMKonica Minolta: 3 patents #1,112 of 2,718Top 45%
KMKonica Minolta: 2 patents #764 of 1,361Top 60%
Overall (All Time): #561,800 of 4,157,543Top 15%
9 Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
10527975 Method for manufacturing intermediate transfer belt and image forming device Takayuki Suzuki, Tsuyoshi Shimoda 2020-01-07
9931793 Process of producing heating element Izumi MUKOYAMA 2018-04-03
8822891 Sheet heater and image fixing device including the sheet heater Susumu Sudo, Eiichi Yoshida, Izumi MUKOYAMA 2014-09-02
8177604 Surface abrading method of photosensitive layer of electrophotographic photoreceptor Hirohiko Seki, Nobuaki Kobayashi, Tadaaki SUMITANI 2012-05-15
7282313 Preparation method of toner and toner Akira Ohira, Shoichiro Ishibashi, Kentarou Yamawaki 2007-10-16
6410093 Coating method for cylindrical base member Akira Ohira, Nobuaki Kobayashi, Masao Asano 2002-06-25
5707449 Ring-shaped coating apparatus Akira Ohira, Eiichi Kijima, Masao Asano, Nobuaki Kobayashi 1998-01-13
5674552 Method of and apparatus for positioning a cylindrical base material Akira Ohira, Eiichi Kijima 1997-10-07
5587266 Manufacturing method for an electrophotographic photoreceptor Akira Ohira 1996-12-24