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

Hiroshi Itoh

Toyota: 58 patents #127 of 26,838Top 1%
Canon: 27 patents #2,142 of 19,416Top 15%
MIMitsui Toatsu Chemicals, Incorporated: 21 patents #26 of 1,543Top 2%
LPLenovo (Singapore) Pte.: 20 patents #113 of 1,301Top 9%
NCNippondenso Co.: 12 patents #111 of 3,479Top 4%
NCNippon Shokubai Co.: 9 patents #114 of 1,108Top 15%
Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%
IBM: 6 patents #16,453 of 70,183Top 25%
MCMitsui Chemicals: 5 patents #388 of 2,279Top 20%
OCOlympus Optical Co.: 4 patents #789 of 2,334Top 35%
Sharp Kabushiki Kaisha: 4 patents #3,475 of 10,731Top 35%
OLOlympus: 4 patents #1,098 of 3,097Top 40%
KAKao: 4 patents #816 of 3,221Top 30%
SESeiko Epson: 4 patents #3,385 of 7,774Top 45%
UNUnknown: 4 patents #4,220 of 83,584Top 6%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
KCKuraray Co.: 4 patents #386 of 1,827Top 25%
Kyocera: 4 patents #773 of 3,732Top 25%
KCKuraray Fastening Co.: 3 patents #6 of 37Top 20%
Nec: 3 patents #4,195 of 14,502Top 30%
Nissan Motor Co.: 3 patents #2,303 of 8,689Top 30%
CLCentral Glass Company, Limited: 2 patents #334 of 968Top 35%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
Kawasaki: 2 patents #1,008 of 2,943Top 35%
KCKoken Co.: 2 patents #24 of 123Top 20%
TCTenryu Technics Co.: 2 patents #5 of 14Top 40%
TPTohoku Pioneer: 2 patents #104 of 312Top 35%
TOToshiba: 2 patents #606 of 2,688Top 25%
TKToshiba Kikai: 2 patents #223 of 713Top 35%
YMYamazaki Mazak: 2 patents #73 of 272Top 30%
Sony: 2 patents #12,963 of 25,231Top 55%
JTJapan Science And Technology: 1 patents #225 of 836Top 30%
Pioneer Electronic: 1 patents #1,093 of 1,840Top 60%
JCJapan Radio Co.: 1 patents #56 of 178Top 35%
HKHonda Giken Kabushiki Kaisha: 1 patents #5 of 184Top 3%
HZHitachi Zosen: 1 patents #216 of 531Top 45%
SCShionogi & Co.: 1 patents #620 of 1,054Top 60%
Hitachi: 1 patents #17,742 of 28,497Top 65%
SISumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
FLFujitsu Ten Limited: 1 patents #456 of 996Top 50%
DCDainippon Sumitomo Pharma Co.: 1 patents #107 of 256Top 45%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
DLDenki Kogyo Company, Limited: 1 patents #7 of 32Top 25%
TCToshiba Machine Co.: 1 patents #70 of 186Top 40%
TTToudai Tlo: 1 patents #31 of 79Top 40%
NCNew Japan Chemical Co.: 1 patents #51 of 110Top 50%
NSNippon Steel: 1 patents #2,111 of 4,423Top 50%
MPMitsubishi Tanabe Pharma: 1 patents #254 of 503Top 55%
KUKeio University: 1 patents #190 of 781Top 25%
NCNisshin Steel Co.: 1 patents #240 of 514Top 50%
KCKansai Paint Co.: 1 patents #432 of 822Top 55%
Overall (All Time): #1,866 of 4,157,543Top 1%
257 Patents All Time

Issued Patents All Time

Showing 101–125 of 257 patents

Patent #TitleCo-InventorsDate
6005616 Frame-by-frame color image pickup apparatus Akihiro Kubota, Yukihiro Sugimoto, Toshiyuki Noguchi 1999-12-21
5988797 Recording head 1999-11-23
5973104 High molecular polyetherpolyester and its production process and use Teruki Matsushita, Hiroya Kobayashi, Koji Fukuhara, Yoshinobu Yamamoto 1999-10-26
5973459 Linear motor apparatus, and stage apparatus, exposure system and device production method using the linear motor apparatus 1999-10-26
5952761 Inverter-driven motor Hirokazu Yamauchi 1999-09-14
5945760 Motor with built-in permanent magnets Yukio Honda, Hiroshi Murakami, Kazushige Narazaki, Masayuki Shinto, Yoshinari Asano +1 more 1999-08-31
5936710 Scanning type exposure apparatus, position control apparatus, and method therefor Masahiro Morisada 1999-08-10
5932631 Ink composition having excellent waterfastness William Marritt 1999-08-03
5927536 Metal easy open can lid superior in can openability and process for production of thereof Yashichi Oyagi, Kouji Manabe, Hiroshi Nishida, Takehide Senuma, Masaaki Yano +3 more 1999-07-27
5920397 Electronic part installation apparatus and method thereof 1999-07-06
5894337 Eye fundus examining apparatus Satoru Okinishi, Shinya Tanaka, Yasuyuki Numajiri, Toshiaki Okumura, Shigeaki Ono +1 more 1999-04-13
5872287 Amphipathic compound having succinic acid skeleton Toshihiko Takaki, Masaru Tanabe, Masayuki Yanagi, Shoko Oyanagi, Hiroyoshi Watanabe +3 more 1999-02-16
5843573 Polyester resin composition Yoshinobu Yamamoto, Koji Fukuhara, Hiroya Kobayashi 1998-12-01
5820357 Enclosed type rotary compressor 1998-10-13
5822667 Transfer separator Yuko Hayama, Hirokazu Ishii, Satoshi Takano, Akio Kutsuwada, Hakuti Mizuishi +1 more 1998-10-13
5812919 Image transferring device for an image forming apparatus Satoshi Takano, Itaru Matsuda, Yuko Hayama, Hirokazu Ishii, Akio Kutsuwada +1 more 1998-09-22
5806174 Apparatus for mounting electronic components 1998-09-15
5786839 Electronic parts, thermal head, manufacturing method of the thermal head, and heat sensitive recording apparatus 1998-07-28
5747602 Production process for making high molecular weight polydioxolane Takashi Namba, Hiroya Kobayashi, Kenji Minami, Toshiaki Kuriyama, Masashi Yukitake 1998-05-05
5744887 Permanent magnet rotor and manufacturing method thereof 1998-04-28
5690721 Water-base ink for ink jet recording 1997-11-25
5668229 Process for preparing high-molecular weight acrylamide polymer Takashi Abe, Manabu Tsuruta, Shoko Oyanagi, Kenichi Nakamura 1997-09-16
5654489 Process for producing alicyclic diketone compounds Shuji Kawai, Noboru Araki 1997-08-05
5653839 Fire-resistant glass and process for production thereof Takashi Abe, Hitoshi Yamashita, Toshihiro Yoshimura, Takeshi Hisanaga, Takao Takebayashi +2 more 1997-08-05
5624998 Hardenable composition, aqueous gel and applications Takashi Abe, Hideo Kamio, Hitoshi Yamashita, Atsuhiko Nitta 1997-04-29