SI

Shigetoshi Ishida

HC Hitachi Koki Co.: 6 patents #189 of 888Top 25%
TC Tanaka Kogyo Co.: 4 patents #1 of 14Top 8%
Tdk: 1 patents #2,493 of 3,796Top 70%
Overall (All Time): #381,744 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
9816431 Stratified scavenging two-cycle engine 2017-11-14
9759176 Engine and engine-operated working machine Akira Mezaki 2017-09-12
9670837 Engine-powered work tool provided with wind governor that performs ignition control Hiroshi Honzawa 2017-06-06
8869774 Small engine and engine work machine including the same Toshihide Sasaki, Hiroki Nagase 2014-10-28
8813733 Hand-held engine-powered tool Fukushi Tamura 2014-08-26
8499730 Two cycle engine and two cycle engine tool Toshinori Yasutomi, Shinki Ohtsu, Junichi Kamimura 2013-08-06
8181611 Stratified scavenging two-cycle engine 2012-05-22
8065981 Stratified scavenging two-cycle engine 2011-11-29
6752932 Ferrite core and its production method Masahiko Watanabe, Katsushi Yasuhara 2004-06-22
6279521 Two-cycle engine Naoki Tsuruoka, Yasuhiro Sensui 2001-08-28
4914372 Small engine for hand-held work machines 1990-04-03
4899446 Hand-held machine with power disengaging means Genji Akiba, Kohya Tanaka 1990-02-13
4509496 Ignition circuit for internal combustion engine having alternately operable high and low speed control devices 1985-04-09