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

Jun Ikeda

MCMurata Manufacturing Co.: 18 patents #366 of 5,295Top 7%
Sumitomo Electric Industries: 17 patents #1,358 of 21,551Top 7%
PAPanasonic: 11 patents #2,326 of 21,108Top 15%
SSSumitomo Wiring Systems: 10 patents #381 of 2,615Top 15%
HCHitachi Construction Machinery Co.: 8 patents #167 of 1,234Top 15%
TOToyota: 7 patents #4,145 of 26,838Top 20%
ATAutonetworks Technologies: 7 patents #241 of 1,079Top 25%
Canon: 7 patents #7,830 of 19,416Top 45%
SCShin-Etsu Handotai Co.: 5 patents #149 of 679Top 25%
ICI-Pro Co.: 4 patents #4 of 101Top 4%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
HIHsp Research Institute: 2 patents #3 of 12Top 25%
Aisin Seiki Kabushiki Kaisha: 2 patents #1,427 of 3,782Top 40%
NENec Electronics: 2 patents #384 of 1,789Top 25%
ACAjinomoto Co.: 1 patents #1,164 of 2,190Top 55%
TOTokico: 1 patents #164 of 359Top 50%
AKAisan Kogyo Kabushiki Kaisha: 1 patents #344 of 642Top 55%
KCKyoeisha Chemical Co.: 1 patents #9 of 38Top 25%
RERenesas Electronics: 1 patents #2,739 of 4,529Top 65%
KCKojima Press Industry Co.: 1 patents #38 of 143Top 30%
Yokkaichi, JP: #15 of 2,072 inventorsTop 1%
Overall (All Time): #17,039 of 4,157,543Top 1%
92 Patents All Time

Issued Patents All Time

Showing 76–92 of 92 patents

Patent #TitleCo-InventorsDate
6303529 Dielectric ceramic, method for producing the same, laminated ceramic electronic element, and method for producing the same Nobuyuki Wada, Takashi Hiramatsu, Yukio Hamaji 2001-10-16
6225250 Dielectric ceramic composition Nobuyuki Wada, Takashi Hiramatsu, Yukio Hamaji 2001-05-01
6206587 Automatic processing machine and method for manufacturing conveying rollers used therein Yutaka Mizuma, Kenji Inoue 2001-03-27
6205015 Dielectric ceramic, method for producing the same, laminated ceramic electronic element, and method for producing the same Nobuyuki Wada, Takashi Hiramatsu, Yukio Hamaji 2001-03-20
6058208 Color correction device and color correction method Tsuyoshi Hirashima, Tadanori Tezuka, Hitoshi Fujimoto, Yuji Shimizu 2000-05-02
6034232 Stress proteins Sumiko Kaneda, Hideki Yanagi, Masayasu Matsumoto, Takashi Yura 2000-03-07
5978553 System for processing received print data prior to printing 1999-11-02
5948637 Human and rat hypoxic stress proteins and DNAs encoding therefor Sumiko Kaneda, Hideki Yanagi, Masayasu Matsumoto, Takashi Yura 1999-09-07
5748343 Image processing apparatus and method 1998-05-05
5696888 Variable resolution output method and apparatus 1997-12-09
5675913 Photosensitive material processing apparatus Shinichi Matsuda, Ryouei Nozawa, Kenro Yamamoto, Mitsuru Katsumata 1997-10-14
5379085 Photosensitive material processing apparatus Shinichi Matsuda 1995-01-03
5302839 Light emitting diode having an improved GaP compound substrate for an epitaxial growth layer thereon Tsuneyuki Kaise, Toshio Otaki 1994-04-12
5274063 Vinyl polymer having (meth)acryloyl groups on the side chains and method for preparing same Akira Matsumoto, Hajime Yoneno 1993-12-28
5157773 Image data output apparatus Kozo Matsumoto, Satoshi Nagata, Kunio Okada, Shinya Kishimoto 1992-10-20
5038298 Image output apparatus connectable to mutually different external data processing apparatus Kozo Matsumoto, Satoshi Nagata, Kunio Okada, Shinya Kishimoto 1991-08-06
4355532 Apparatus for testing damping forces of shock absorbers Yasuo Hasegawa 1982-10-26