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

Tetsuya Itoh

RARacbaki: 9 patents #1 of 1Top 100%
MCMinolta Co.: 8 patents #272 of 1,416Top 20%
MIMinolta: 5 patents #345 of 1,109Top 35%
NONof: 3 patents #95 of 561Top 20%
TITokai Rubber Industries: 3 patents #126 of 557Top 25%
Sharp Kabushiki Kaisha: 3 patents #4,164 of 10,731Top 40%
YMYamazaki Mazak: 2 patents #73 of 272Top 30%
Hitachi: 2 patents #13,388 of 28,497Top 50%
ICItoh Denki Co.: 1 patents #21 of 38Top 60%
Tdk: 1 patents #2,493 of 3,796Top 70%
INInax: 1 patents #78 of 242Top 35%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
Yokohama, JP: #207 of 480 inventorsTop 45%
Overall (All Time): #84,135 of 4,157,543Top 3%
38 Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
5838833 Fractal image compression method and device and fractal image restoration method and device Atsushi Ishikawa 1998-11-17
5804309 Charging roll Takafumi Yamamoto, Hiroki Sugiura, Atsuhiro Kawano, Wataru Imamura, Saburou Hayashi 1998-09-08
5760912 Image forming apparatus capable of providing appropriate margin 1998-06-02
5687002 Image forming apparatus with a solid-state scanning optical print head 1997-11-11
5623300 Print head with light-emitting element driving correction Munehiro Nakatani, Nobuo Kamei 1997-04-22
5608547 Image forming apparatus having illumination direction altered for every plurality of readout operations with respect to one original Munehiro Nakatani, Yoshikazu Ikenoue, Atsushi Ishikawa, Akio Nakajima, Hideo Kumashiro +3 more 1997-03-04
5285247 Linear print head image forming apparatus with magnification adjustment 1994-02-08
5156791 Depositing method of wall concrete Naomitsu Sano, Kazuyuki Nakajima, Hisashi Maeda, Tatsuya Ohtsu, Kazuhiro Ogasawara 1992-10-20
5140350 Image forming apparatus for forming an image with smooth curved lines 1992-08-18
5016828 Shredding machine Tatsuya Utsumi, Shinji Kawamura, Hiroshi Moriyama, Naofumi Okada 1991-05-21
4905027 Control method and apparatus for optical printer head 1990-02-27
4842205 Shredding machine Yasuo Araki, Shougo Iwai, Yoshihalu Fujii 1989-06-27
4817877 Shredding machine Shougo Iwai, Shizuo Yoshikawa 1989-04-04