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USPTO Patent Rankings Data through Dec 31, 2025
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Kazuo Samejima — 45 Patents

Kubota: 44 patents #7 of 2,059Top 1%
KUKuboto: 1 patents #4 of 17Top 25%
Osaka, JP: #642 of 24,344 inventorsTop 3%
Overall (All Time): #64,393 of 4,157,543Top 2%
45 Patents All Time
Kazuo Samejima has been granted 45 US patents while listed as an inventor at Kubota. The first was granted in 1988 and the most recent in May 2014. Kazuo Samejima ranks #64,393 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Kazuo Samejima in Osaka, JP.

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8720173 Climb-up assist structure for mower unit Akihito Sugio, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou 2014-05-13
8336281 Climb-up assist structure for mower unit Akihito Sugio, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou 2012-12-25
8266879 Riding mower Hironori Tsuchihashi, Kazuhiro Ochi, Masaji Kure 2012-09-18 $828,000
8099938 Rear discharge type mower apparatus having a pair of auxiliary plates for directing grass to a discharge opening Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Masatoshi Yamaguchi, Kazuo Koike +1 more 2012-01-24 $795,000
7735306 Rear discharge type mower apparatus Masaji Kure, Yoshikazu Togoshi, Koji Fujiwara, Masatoshi Yamaguchi, Kazuo Koike +1 more 2010-06-15 $827,000
7685799 Mulching mower unit Masatoshi Yamaguchi, Junichi Kitamura 2010-03-30 $504,000
7685800 Climb-up assist structure for mower unit Akihito Sugio, Yoshikazu Togoshi, Koji Fujiwara, Takuhisa Yamamoto, Eiji Satou 2010-03-30 $504,000
7594378 Mower tractor with rear grass collector assembly Masato Asahara, Yoshikazu Togoshi, Akira Minoura, Yasunobu Nakatani, Osami Fujiwara 2009-09-29 $2,248,000
7458434 Lawn mower having an engine disposed rearwardly of a driver's seat Hironori Tsuchihashi, Teruo Shimamura, Yoshikazu Togoshi, Hiroshi Kawabata, Takeshi Komorida 2008-12-02 $396,000
7448194 Mower deck with ventilation hole Kazuo Koike, Masatoshi Yamaguchi, Akihito Sugio 2008-11-11 $920,000
7404282 Riding lawn mower having a front mower unit Yoshikazu Togoshi, Yoshiyuki Esaki 2008-07-29 $769,000
7360352 Side discharge mower Yoshikazu Togoshi, Masatoshi Yamaguchi 2008-04-22 $875,000
7325387 Riding-type mower Masato Asahara 2008-02-05 $1,504,000
7299613 Mulching mower unit Masatoshi Yamaguchi, Junichi Kitamura 2007-11-27 $769,000
7263819 Lawn mower Yoshikazu Togoshi, Masato Asahara, Hiroshi Shimada 2007-09-04 $1,240,000
7059109 Mid-mount mower having a mower unit disposed between a front wheel unit and a pair of right and left rear wheels arranged rearwardly of a vehicle body to be independently shiftable Masato Asahara, Hiroshi Shimada, Akira Minoura, Yoshikazu Togoshi, Osami Fujiwara +1 more 2006-06-13 $1,383,000
6973768 Mid-mount mower having a mower unit disposed between front and rear wheels Yoshikazu Togoshi, Osami Fujiwara, Yoshiyuki Esaki, Akira Minoura 2005-12-13 $843,000
6877302 Mid-mount mower Kenichi Chujo, Teruo Shimamura, Yoshiyuki Esaki, Masatoshi Yamaguchi, Yoshihiro Kawahara 2005-04-12 $198,000
6854249 Lawn mower Yoshikazu Togoshi, Masato Asahara, Yoshiyuki Esaki, Akira Minoura, Osami Fujiwara 2005-02-15 $205,000
6848246 Mower unit attachable to a vehicle body Yoshikazu Togoshi, Teruo Shimamura, Masatoshi Yamaguchi, Yoshiyuki Esaki, Kenichi Chujo +1 more 2005-02-01 $210,000
6708805 Riding tractor for supporting a mower unit Akira Minoura, Yoshikazu Togoshi, Osami Fujiwara 2004-03-23 $335,000
6675567 Lawn tractor with jack-up mechanism Yoshikazu Togoshi, Yoshiyuki Esaki, Hironori Tsuchihashi, Yoshihiro Kawahara, Osami Fujiwara +1 more 2004-01-13 $105,000
6578656 Riding mower Hironori Tsuchihashi, Yoshikazu Togoshi, Yoshihiro Kawahara, Teruo Shimamura, Osami Fujiwara +1 more 2003-06-17 $93,000
6530200 Lawn mower Akira Minoura, Takeshi Komorida 2003-03-11 $48,000
6516597 Lawn tractor with jack-up mechanism Yoshikazu Togishi, Yoshiyuki Esaki, Hironori Tsuchihashi, Yoshihiro Kawahara, Osami Fujiwara +1 more 2003-02-11 $117,000