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

Hideaki Maeda — 82 Patents

FAFanuc: 31 patents #68 of 1,735Top 4%
HGHGST: 12 patents #153 of 1,677Top 10%
RIRiken: 7 patents #79 of 1,824Top 5%
TKToda Kogyo: 4 patents #92 of 328Top 30%
Samsung: 4 patents #25,854 of 75,807Top 35%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%
YAYamasa: 3 patents #21 of 108Top 20%
Dow Global Technologies: 2 patents #1,896 of 4,534Top 45%
HBHgst Netherlands, B.V.: 2 patents #341 of 972Top 40%
Hitachi: 2 patents #13,388 of 28,497Top 50%
NUNational University Corporation Chiba University: 1 patents #100 of 320Top 35%
NSNational Institute For Materials Science: 1 patents #361 of 901Top 45%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
MIMitsubishi Cable Industries: 1 patents #162 of 372Top 45%
TOTokkyokiki: 1 patents #11 of 18Top 65%
TKToyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
JTJapan Superconductor Technology: 1 patents #8 of 26Top 35%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Toyota: 1 patents #15,335 of 26,838Top 60%
Overall (All Time): #21,628 of 4,157,543Top 1%
82 Patents All Time

Issued Patents All Time

Showing 51–75 of 82 patents

Patent #TitleCo-InventorsDate
8107180 Hard-disk drive and control method for magnetic recording on a patterned medium of the hard-disk drive Shuji Nishida, Yasutaka Nishida, Masafumi Mochizuki 2012-01-31
8089720 Hard-disk drive Yosuke Urakami, Jun Ohno, Hiroyasu Tanabe 2012-01-03
8018672 Magnetic recording device and magnetic recording method thereof Hiroyasu Tanabe, Masafumi Mochizuki, Hideki Zaitsu 2011-09-13
8017235 Method for manufacturing fine composite particles, apparatus for manufacturing fine composite particles, and fine composite particles Hiroyuki Nakamura, Masato Uehara, Hongzhi Wang, Masaya Miyazaki, Yoshiko Yamaguchi +3 more 2011-09-13
7969678 Magnetic disk drive having assisted recording and methods of recording data thereto Hiroyasu Tanabe, Hideki Zaitsu, Masafumi Mochizuki 2011-06-28
7927745 Negative electrode for rechargeable lithium battery and rechargeable lithium battery including the same Tetsuo Tokita, Naoya Kobayashi, Sung-Soo Kim 2011-04-19
7852589 Disk drive Masaomi Ikeda, Takao Matsui, Masahiko Koizumi, Masato Taniguchi, Kohji Nakao 2010-12-14
7747336 Apparatus for creating a turning program Shinya Nakamura, Akira Horiuchi 2010-06-29
7695689 Micro reactor device and method of manufacturing micro reactor device Hiroyuki Nakamura, Hongzhi Wang, Xianying Li, Masaya Miyazaki, Kenichi Yamashita +1 more 2010-04-13
7486485 Perpendicular hard disk drive resistive against external magnetic field Takehiko Hamaguchi, Yoshihisa Kamo, Yukiya Shimizu, Ikuya Tagawa, Tetsuo Yuki 2009-02-03
7474493 Alternative DC-burst servo pattern for perpendicular recording Takehiko Hamaguchi, Kazuhisa Shishida, Yasutaka Nishida 2009-01-06
7365933 Servo information recording method, magnetic recording media, and magnetic disk apparatus Takehiko Hamaguchi, Kazuaki Usui, Kazuhisa Shishida, Takashi Konishi 2008-04-29
7289284 Stray field detector, magnetic disk drive, and method of head escaping Reiko Arai, Takehiko Hamaguchi, Atsushi Kikugawa, Liping Shen, Mikio Suzuki 2007-10-30
7285956 Nuclear magnetic resonance device Shigeyuki Yokoyama, Masashi Yasuda, Fumiaki Itojima, Masaki Tsuchiya 2007-10-23
7192539 Cobalt oxide particles and process for producing the same, cathode active material for non-aqueous electrolyte secondary cell and process for producing the same, and non-aqueous electrolyte secondary cell Shoichi Fujino, Hiroyasu Watanabe, Norimiki Sugiyama, Hideaki Sadamura 2007-03-20
7112291 Cobalt oxide particles and process for producing the same, cathode active material for non-aqueous electrolyte secondary cell and process for producing the same, and non-aqueous electrolyte secondary cell Shoichi Fujino, Hiroyasu Watanabe, Norimiki Sugiyama, Hideaki Sadamura 2006-09-26
7015020 Preparation of 2-keto carboxylic acid from carbon dioxide Masaya Miyazaki, Hiroyuki Nakamura, Noriyuki Yamada, Masao Shibata 2006-03-21
6998071 COBALT OXIDE PARTICLES AND PROCESS FOR PRODUCING THE SAME, CATHODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL Shoichi Fujino, Hiroyasu Watanabe, Norimiki Sugiyama, Hideaki Sadamura 2006-02-14
6972917 Signal processing technique for preventing delay in read time from retry operations Yoshiju Watanabe, Naoki Satoh, Yasuyuki Ito 2005-12-06
6915181 Numerical control device and method Satoru Shinozaki 2005-07-05
6780988 Processes for producing P1,P4-diuridine-5′-tetraphosphate Toshio Yamada, Hiroshi Sato, Yutaka Noda 2004-08-24
6756154 Cathode active material for non-aqueous electrolyte secondary cell and process for producing the same Shoichi Fujino, Mitsuaki Hatatani, Hiroyasu Watanabe, Norimiki Sugiyama, Hideaki Sadamura 2004-06-29
6731441 Information recording and reproducing apparatus Morishi Izumita, Terumi Takashi, Seiichi Mita 2004-05-04
6617444 Dinucleotide tetraphosphate crystals Kenya Mori, Takanori Miyashita, Hiroshi Sato, Yutaka Noda 2003-09-09
6458946 Crystals of diuridine tetraphosphate or salt thereof, process for producing the crystals, and process for producing the compounds Toshio Yamada, Hiroshi Sato, Yutaka Noda 2002-10-01