SY

Seiji Yamaguchi

Sumitomo Electric Industries: 31 patents #458 of 21,551Top 3%
Canon: 30 patents #1,833 of 19,416Top 10%
Honda Motor Co.: 20 patents #634 of 21,052Top 4%
TC Toyoda Gosei Co.: 18 patents #101 of 2,296Top 5%
OC Olympus Optical Co.: 10 patents #326 of 2,334Top 15%
KT Kabushiki Kaisha Toshiba: 8 patents #3,802 of 21,451Top 20%
SG Sumita Optical Glass: 7 patents #7 of 59Top 15%
KM Konica Minolta: 6 patents #346 of 1,361Top 30%
KM Konica Minolta: 3 patents #1,112 of 2,718Top 45%
UI Ube Material Industries: 3 patents #14 of 58Top 25%
TC Toyo Ink Sc Holdings Co.: 2 patents #33 of 144Top 25%
KO Konica: 2 patents #962 of 1,958Top 50%
SC Shibaura Engineering Works Co.: 2 patents #1 of 28Top 4%
IC Ichibiki Co.: 2 patents #4 of 19Top 25%
JC Jidosha Kiki Co.: 2 patents #82 of 196Top 45%
TC Toyo Ink Co.: 2 patents #11 of 41Top 30%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
CF Chubu University Educational Foundation: 1 patents #13 of 38Top 35%
CI Ciba-Geigy: 1 patents #1,572 of 2,867Top 55%
DE Denso: 1 patents #6,940 of 11,792Top 60%
EC Elmo Co.: 1 patents #41 of 62Top 70%
KU Kyoto University: 1 patents #568 of 1,688Top 35%
NB Nec Biglobe: 1 patents #2 of 18Top 15%
OC Ohi Seisakusho Co.: 1 patents #94 of 196Top 50%
OS Olympus Medical Systems: 1 patents #501 of 833Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
AE Asahi Kasei E-Materials: 1 patents #57 of 141Top 45%
📍 Kiyosu, JP: #2 of 413 inventorsTop 1%
Overall (All Time): #6,379 of 4,157,543Top 1%
148
Patents All Time

Issued Patents All Time

Showing 76–100 of 148 patents

Patent #TitleCo-InventorsDate
6654566 Developer agitating system, electrophotographic image forming apparatus and cartridge Masahide Kinoshita, Motoki Adachi 2003-11-25
6640060 Image forming apparatus with developer density and remaining amount detection Masahide Kinoshita, Masao Uyama 2003-10-28
D476933 Rear fender for two-wheeled motor vehicles Masamoto Ito 2003-07-08
D470799 Motorcycle Masamoto Ito 2003-02-25
6496664 Image forming apparatus comprising storing means for storing information that a setting operation is performed Hiroaki Ogata, Masao Uyama 2002-12-17
6488475 Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor Yoshitaka Murata, Tsuyoshi Tokuda, Tsuyoshi Nishimura, Kazuhisa Morishita 2002-12-03
D463871 Tail light for two-wheeled motor vehicles Masamoto Ito 2002-10-01
D461920 License plate light for two-wheeled motor vehicles Masamoto Ito 2002-08-20
6421516 Developing device and image forming apparatus having a restricted developer surface level feature Masahide Kinoshita, Motoki Adachi 2002-07-16
6381431 Charging apparatus including a magnetic brush with local anti-contamination feature Masahide Kinoshita 2002-04-30
6343193 Process cartridge and image forming apparatus including a developer remaining amount detecting member Hideki Matsumoto, Keiji Okano 2002-01-29
6324369 Developing apparatus, process cartridge and image forming apparatus Masahide Kinoshita 2001-11-27
D447722 Motorcycle Masamoto Ito, Takahiro Kokubu 2001-09-11
6239600 Microwave type concentration measuring apparatus Etsumi Suzuki 2001-05-29
6207323 Hydrogen storage alloy electrode Shinichi Yuasa, Munehisa Ikoma 2001-03-27
6181145 Probe card Yasuhiro Tomita 2001-01-30
6151467 Developing apparatus 2000-11-21
6131007 Developing device, process cartridge and electrophotographic image forming apparatus Atsushi Numagami, Minoru Sato, Yoshiyuki Batori 2000-10-10
D426174 Motorcycle Shuichi Sofue, Mitsuru Yamamoto 2000-06-06
6058284 Developing apparatus Keiji Okano, Kouichi Suwa, Hideki Matsumoto 2000-05-02
D417173 Motorcycle Troy Sumitomo 1999-11-30
5987296 Fixing device with heat roller having heating resistor layer therein Takeichi Shimada, Tetsuko Omoto 1999-11-16
5969254 Phase difference measuring apparatus and method 1999-10-19
5781835 Developing device comprising a magnetic member Keiji Okano, Takahiro Inoue, Masaki Ojima 1998-07-14
5767409 Phase difference measuring apparatus and method using a first and second receive signal 1998-06-16