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

Masahiro Murakami — 94 Patents

IBM: 14 patents #8,004 of 70,183Top 15%
MCMita Industrial Co.: 13 patents #63 of 891Top 8%
Brother Kogyo: 10 patents #856 of 2,767Top 35%
Panasonic: 7 patents #3,841 of 21,108Top 20%
SCSumitomo Seika Chemicals Co.: 7 patents #35 of 365Top 10%
ACAsahi Kasei Kogyo Co.: 5 patents #112 of 1,395Top 9%
APAmato Pharmaceutical Products: 4 patents #1 of 12Top 9%
Sharp Kabushiki Kaisha: 4 patents #3,475 of 10,731Top 35%
HHHitachi High-Technologies: 3 patents #776 of 1,917Top 45%
SCSumitomo Precision Products Co.: 2 patents #43 of 199Top 25%
KSKobe Steel: 2 patents #504 of 2,031Top 25%
SCShinko Electric Industries Co.: 2 patents #315 of 723Top 45%
TLTeijin Limited: 2 patents #572 of 1,631Top 40%
NSNec Network And Sensor Systems: 2 patents #3 of 21Top 15%
TLTeijin Chemicals Limited: 2 patents #42 of 196Top 25%
NCNisshin Steel Co.: 1 patents #240 of 514Top 50%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Hitachi: 1 patents #17,742 of 28,497Top 65%
SCShin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
SPSpiber: 1 patents #22 of 51Top 45%
SUSumco: 1 patents #248 of 464Top 55%
KSKobe Steel: 1 patents #937 of 1,773Top 55%
KSKawasaki Steel: 1 patents #889 of 1,922Top 50%
KUKyoto University: 1 patents #568 of 1,688Top 35%
KAKaneka: 1 patents #886 of 1,525Top 60%
MCMurata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
NTNec Lcd Technologies: 1 patents #192 of 305Top 65%
NCNippon Shokubai Co.: 1 patents #656 of 1,108Top 60%
Overall (All Time): #16,236 of 4,157,543Top 1%
94 Patents All Time

Issued Patents All Time

Showing 51–75 of 94 patents

Patent #TitleCo-InventorsDate
7206502 Apparatus and method for recording and reproducing digital data Hiroaki Kubo, Katsuyuki Sugita 2007-04-17
6949926 Biomagnetic measurement apparatus Hitoshi Sasabuchi 2005-09-27
6890547 Glycyrrhizin preparations for transmucosal absorption Kanji Takada 2005-05-10
6861538 Process for the preparation of cyclic lactic acid oligomer Mikio Watanabe, Jiro Takano, Yoshimi Ishihara 2005-03-01
6825314 Process for the preparation of cyclic lactic acid oligomers Mikio Watanabe, Jiro Takano, Yoshimi Ishihara 2004-11-30
6808089 Powder filling method and powder filling apparatus Yasuhiro Hashimoto, Yoshikazu Seki 2004-10-26
6749767 Powder for high strength dust core, high strength dust core and method for making same Hiroyuki Mitani, Tsukasa Yuri, Kazuhisa Fujisawa, Yoshikazu Seki, Hirofumi Houjou 2004-06-15
6734214 Remedies for diabetes Shigeo Takada, Yasukazu Nagato 2004-05-11
6665553 Biomagnetic field measuring apparatus using squid magnetometers for evaluating a rotational property of a current in a subject Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada 2003-12-16
6472496 Process for production of aromatic polycarbonate resin and molded article of aromatic polycarbonate resin Kyosuke Matsumoto, Masasi Simonaru, Toru Sawaki, Katsushi Sasaki, Yoshiki Matsuoka 2002-10-29
6471877 Filter device for polycarbonate and production method for polycarbonate Yoshiki Matsuoka, Toru Sawaki, Katsushi Sasaki 2002-10-29
6459408 Satellite receiver and method and apparatus for adjusting the direction of satellite dish antenna Hiroaki Kubo 2002-10-01
6013379 Coated steel sheet for alkaline dry cell positive electrode cans Taketo Uesugi, deceased, Masaaki Kurimura, Kazuhiro Shikada, Kenji Koshiishi, Yasuharu Maeda +1 more 2000-01-11
5838887 Printer having a backed-up memory for storing optional emulation program 1998-11-17
5550637 Power-saving printer which controls fixing device based on print data presence 1996-08-27
5525293 Powder metallurgical binder and powder metallurgical mixed powder Akihiko Kagawa, Kazuhisa Fujisawa, Hironori Suzuki, Kunihiro Yoshioka, Hirotaka Hanaoka 1996-06-11
5473735 Page printer 1995-12-05
5432401 Correcting coil of deflection yoke Tatsuya Satoh 1995-07-11
5363795 Czochralski crystal pulling process and an apparatus for carrying out the same Hiroshi Kanada, Katsumi Nishizaki, Teruyuki Sekine, Yasuyuki Seki, Kazuhiko Echizenya +1 more 1994-11-15
5286275 Powder mixture for powder metallurgy and binder therefor Hironori Suzuki, Hitoshi Sakuma, Takehiko Hayami, Jiro Chosokabe 1994-02-15
5257035 Perfecting printer and method for controlling double-face printing operation thereof Hiroyuki Funahashi, Toru Tsuzuki, Hajime Usami, Kiyoshi Takahashi 1993-10-26
5068381 Poly(silvinylene)s and a process for their preparation Yoshihiko Ito 1991-11-26
5013025 Paper feeding device Kiyotaka Arai 1991-05-07
4970661 Perfecting printer and method for controlling double-face printing operation thereof Toru Tsuzuki, Hiroyuki Funahashi, Hajime Usami, Kiyoshi Takahashi 1990-11-13
D309631 Sorter Akiyoshi Tanizawa 1990-07-31