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

Hiroshi Arai

SOSony: 17 patents #2,459 of 25,231Top 10%
Ricoh Company: 13 patents #1,714 of 9,818Top 20%
HIHitachi: 11 patents #3,813 of 28,497Top 15%
SHShimadzu: 9 patents #165 of 2,007Top 9%
SISumitomo Rubber Industries: 7 patents #320 of 1,637Top 20%
LLLihit Lab.: 7 patents #2 of 11Top 20%
TOToyota: 5 patents #5,641 of 26,838Top 25%
HCHitachi Software Engineering Co.: 5 patents #19 of 502Top 4%
Honda Motor Co.: 4 patents #5,328 of 21,052Top 30%
SESeiko Epson: 4 patents #3,385 of 7,774Top 45%
NINikon: 4 patents #874 of 2,493Top 40%
NCNippon Metal Industry Co.: 3 patents #4 of 22Top 20%
KTKabushiki Kaisha Toshiba: 2 patents #13,537 of 21,451Top 65%
NENec: 2 patents #5,510 of 14,502Top 40%
NCNippondenso Co.: 2 patents #1,150 of 3,479Top 35%
Canon: 2 patents #12,681 of 19,416Top 70%
CCChichibu Cement Co.: 2 patents #15 of 80Top 20%
MSMitsubishi Hitachi Power Systems: 1 patents #495 of 970Top 55%
KSKawasaki Steel: 1 patents #889 of 1,922Top 50%
TCToray Engineering Co.: 1 patents #46 of 169Top 30%
HSHitachi Hokkai Semiconductor: 1 patents #44 of 98Top 45%
HOHoneywell: 1 patents #7,507 of 14,447Top 55%
JCJeco Co.: 1 patents #30 of 73Top 45%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
PCPolymatech Co.: 1 patents #43 of 84Top 55%
Overall (All Time): #14,802 of 4,157,543Top 1%
99 Patents All Time

Issued Patents All Time

Showing 51–75 of 99 patents

Patent #TitleCo-InventorsDate
7710599 Image processing apparatus, image processing method, and image processing program Isao Miyamoto, Hiroyuki Kawamoto, Satoshi Ohkawa, Takeharu Tone, Naoki Sugiyama +2 more 2010-05-04
7672004 Format convertible image processing system, and program Maki Ohyama, Hiroyuki Kawamoto, Isao Miyamoto, Takeharu Tone, Satoshi Ohkawa +2 more 2010-03-02
7600318 Method of manufacturing a piezoelectric vibration element for an inkjet recording head Tsuyoshi Kitahara 2009-10-13
7599081 Detecting and protecting a copy guarded document Hiroshi Shimura, Guan Haike, Masaaki Ishikawa, Takashi Saitoh 2009-10-06
D591344 Binder Kanji Tanaka, Hiroshi Nakano 2009-04-28
7478963 Binding device Kanji Tanaka, Hiroshi Nakano 2009-01-20
7175504 Vacuum suction holding apparatus and holding method, polishing apparatus using this holding apparatus, and device manufacturing method using this polishing apparatus Shigeto Izumi 2007-02-13
7149599 Apparatus and method for creating tool path Junichi Hirai, Tamotsu Harihara, Osamu Chiba, Nobuhisa Kanamaru, Shunsuke Minami 2006-12-12
7100282 Method of manufacturing a piezoelectric vibration element for an inkjet recording head Tsuyoshi Kitahara 2006-09-05
6999845 Numerically controlled curved surface machining unit Junichi Hirai, Tamotsu Harihara, Osamu Chiba, Masaaki Takahashi, Nobuhisa Kanamaru 2006-02-14
6934601 Numerically controlled curved surface machining unit Junichi Hirai, Tamotsu Harihara, Osamu Chiba, Masaaki Takahashi, Nobuhisa Kanamaru 2005-08-23
6875639 Semiconductor device and method of manufacturing the same Nobuaki Nagashima, Norihiko Kasai, Isao Seki 2005-04-05
6734382 Indicator portion forming method for push switch and push switch having an indicator portion Yoshifumi Honmatsu 2004-05-11
6718226 Method of providing data for numerical control machining unit Junichi Hirai, Osamu Chiba, Nobuhisa Kanamaru 2004-04-06
6675061 Numerically controlled curved surface machining unit Junichi Hirai, Tamotsu Harihara, Osamu Chiba, Masaaki Takahashi, Nobuhisa Kanamaru 2004-01-06
6587747 Numerically controlled curved surface machining unit Junichi Hirai, Tamotsu Harihara, Osamu Chiba, Masaaki Takahashi, Nobuhisa Kanamaru 2003-07-01
6578953 Inkjet recording head, piezoelectric vibration element unit used for the recording head, and method of manufacturing the piezoelectric vibration element unit Tsuyoshi Kitahara 2003-06-17
6101156 Focus control device to perform focus control for a multi-layer recording medium Toshihisa Tanaka 2000-08-08
6066207 Powder coating booth Yukihide Yamashita, Masayuki Yamaguchi, Kenichirou Mori 2000-05-23
5992976 Ink-jet printhead Hitotoshi Kimura 1999-11-30
5904091 Picture engraving method and engraved picture bearing certificate 1999-05-18
5877605 Servo device having plural servo systems 1999-03-02
5862111 Optical disk device which performs auto gain control process on servo signals which perform illuminating control of a light beam on the disk's recording surface 1999-01-19
5649081 Method and apparatus for pattern data processing Norihiro Nakajima, Ichiro Harashima, Yoshiaki Shinotsuka, Tomotoshi Ishida, Motomi Odamura +2 more 1997-07-15
5566281 Method and apparatus for generating a surface by simulating a physical membrane Shinji Tokumasu, Norihiro Nakajima, Ichiro Harashima 1996-10-15