AT

Akira Tsumiyama

Shimano: 19 patents #84 of 759Top 15%
Overall (All Time): #240,191 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
8695454 Bicycle operating device 2014-04-15
8549956 Bicycle control device Yoshimitsu Miki, Hisayuki Sato, Etsuyoshi Watarai 2013-10-08
8413543 Bicycle operating unit connector 2013-04-09
8201476 Bicycle operating device 2012-06-19
8181553 Position control mechanism for bicycle control device 2012-05-22
7802489 Bicycle control device 2010-09-28
7650813 Position control mechanism for bicycle control device 2010-01-26
7526979 Bicycle shift position control mechanism 2009-05-05
7509888 Hydraulic gear shift mechanism Tadashi Ichida 2009-03-31
7392723 Bicycle shift control mechanism 2008-07-01
7267026 Bicycle control device Nobukatsu Hara 2007-09-11
7228756 Bicycle control device 2007-06-12
7219574 Hydraulic gear shift mechanism Tadashi Ichida 2007-05-22
7137314 Hydraulic gear shift mechanism Tadashi Ichida 2006-11-21
7124873 Shift and brake control device 2006-10-24
7062989 Bicycle control device 2006-06-20
7032475 Hydraulic gear shift mechanism Tadashi Ichida 2006-04-25
6691591 Bicycle control device Nobukatsu Hara 2004-02-17
6647823 Bicycle control device Nobukatsu Hara 2003-11-18