Ryuichi Shimada has been granted 14 US patents while listed as an inventor at Merstech . The first was granted in 1993 and the most recent in June 2013. Ryuichi Shimada ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Ryuichi Shimada in Ibaraki, JP.
Patents per Year Patents granted per year, 1993 to 2013 Bar chart with a peak of 4 patents in 2011. peak 4 1993: 1 patents 1993 2000: 1 patents 2000 2008: 1 patents 2008 2009: 1 patents 2009 2010: 1 patents 2010 2011: 4 patents 2011 2012: 1 patents 2012 2013: 4 patents 2013
Issued Patents All Time
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Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8471477 Substrate processing apparatus and method of manufacturing semiconductor device Masayuki Tomita , Katsunori FUNAKI , Shinji Yashima 2013-06-25
8395347 Induction motor control device and induction motor group control system Kazuhiko Fukutani , Hideo Narisawa , Takanori Isobe , Tadayuki Kitahara 2013-03-12
8383978 Steel pipe material weld zone heating apparatus and method Kazuhiko Fukutani , Kenji Umetsu , Yoshiaki Nakamura , Kazuto Yamamoto , Takashi Miyakawa +2 more 2013-02-26
8384333 Alternating voltage control apparatus — 2013-02-26
8097981 AC/DC power converter using magnetic energy recovery switch Kazuhiro USUKI 2012-01-17
8045309 Magnetic energy recovery switch having protective circuit — 2011-10-25
7974113 Electric power unit for induction heating Tadayuki Kitahara , Kazuhiko Fukutani 2011-07-05
7919887 High repetitous pulse generation and energy recovery system Taku Takaku 2011-04-05
7898113 Pulse power supply device Taku Takaku 2011-03-01
7843166 Alternating-current power supply device recovering magnetic energy Hideo Sumitani , Taku Takaku , Takanori Isobe 2010-11-30
7476076 Centrifugal fan — 2009-01-13
$613,000
7433212 System linking apparatus for generated electric power Seiki Igarashi , Yoshiyuki Uchida 2008-10-07
6058029 Power unit for generating discharge shock waves Koichiro Itow , Hikosaburo Hiraki 2000-05-02
5256907 Electric power supply apparatus Tatsuya MATSUKAWA , Yasuo Yoshida 1993-10-26
