RA

Ryuichi Arai

Canon: 31 patents #1,730 of 19,416Top 9%
TK Toshiba Tec Kabushiki Kaisha: 21 patents #132 of 1,664Top 8%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
JA Jatco: 2 patents #307 of 871Top 40%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
DE Denso: 1 patents #6,940 of 11,792Top 60%
TC The Cannon Company: 1 patents #3 of 90Top 4%
Overall (All Time): #41,349 of 4,157,543Top 1%
58
Patents All Time

Issued Patents All Time

Showing 25 most recent of 58 patents

Patent #TitleCo-InventorsDate
12305269 Method of manufacturing sheet material made of copper-silver alloy and method of manufaturing sheet for electrode of probe card Tsutomu Koizumi, Go ODACHI 2025-05-20
12148545 Conductive wire for electrical properties testing and method for producing the same Yoshihiro Sakagami, Go ODACHI, Rikuya WATANABE, Tsutomu Koizumi 2024-11-19
12080961 Antenna device Youhei SEKIYA, Yuzi Sugimoto, Masakazu Ikeda, Yuuji Kakuya, Shirou Koide +2 more 2024-09-03
10500856 Ink jet head and ink jet recording apparatus Meng Fei Wong, Ryutaro Kusunoki, Shuhei Yokoyama 2019-12-10
10502314 Vehicle oil pump driving control device Takanobu Mouri, Taiichi Onoyama, Seishi Shimamura, Kakuzou Kaneko, Akihiro Toyofuku +12 more 2019-12-10
10377368 Control device for hybrid vehicle Hironori Miyaishi, Tomoyuki Mizuochi, Kenichi Watanabe, Masumi Fujikawa, Kouichi Kotsuji +11 more 2019-08-13
9937718 Ink jet head and ink jet recording apparatus Meng Fei Wong, Ryutaro Kusunoki, Shuhei Yokoyama 2018-04-10
9914299 Inkjet head and inkjet recording apparatus Ryutaro Kusunoki, Shuhei Yokoyama 2018-03-13
9707756 Inkjet head and inkjet recording apparatus Ryutaro Kusunoki, Shuhei Yokoyama 2017-07-18
9415597 Ink jet head having nozzle plate equipped with piezoelectric elements Takashi Kawakubo, Kazuhide Abe, Yasushi Tomizawa, Ryutaro Kusunoki, Osamu Takagi 2016-08-16
9415593 Ink jet head and manufacturing method of the same Shuhei Yokoyama, Ryutaro Kusunoki, Chiaki Tanuma 2016-08-16
9358785 Inkjet head having high mechanical strength and method of manufacturing the same Takashi Kawakubo, Kazuhide Abe, Yasushi Tomizawa, Ryutaro Kusunoki, Osamu Takagi 2016-06-07
9340018 Inkjet head including nozzle plate provided with piezoelectric element Takashi Kawakubo, Ryutaro Kusunoki, Osamu Takagi 2016-05-17
9308723 Ink jet head and ink jet recording apparatus Shuhei Yokoyama, Ryutaro Kusunoki 2016-04-12
9227403 Ink jet head and ink jet printing apparatus having the same Shuhei Yokoyama, Ryutaro Kusunoki 2016-01-05
9221255 Ink jet head and ink jet printing apparatus having the same Shuhei Yokoyama, Ryutaro Kusunoki, Masayuki Satomi 2015-12-29
9150008 Ink jet head and manufacturing method of the same Shuhei Yokoyama, Ryutaro Kusunoki, Chiaki Tanuma 2015-10-06
9138999 Ink jet head and image forming apparatus Chiaki Tanuma, Ryutaro Kusunoki, Shuhei Yokoyama 2015-09-22
9102154 Ink jet head and ink jet printing apparatus having the same Shuhei Yokoyama, Ryutaro Kusunoki, Chiaki Tanuma 2015-08-11
9079400 Ink jet head Ryutaro Kusunoki, Chiaki Tanuma, Shuhei Yokoyama 2015-07-14
9073319 Inkjet head and inkjet recording apparatus with integrated nozzles and actuators Ryutaro Kusunoki, Chiaki Tanuma, Shuhei Yokoyama 2015-07-07
9050798 Ink-jet head and manufacturing method of the same Shuhei Yokoyama, Ryutaro Kusunoki, Chiaki Tanuma 2015-06-09
8967775 Ink jet head and image forming apparatus Chiaki Tanuma, Ryutaro Kusunoki, Shuhei Yokoyama 2015-03-03
8944573 Inkjet head and method of manufacturing the same Shuhei Yokoyama, Ryutaro Kusunoki, Chiaki Tanuma 2015-02-03
8876262 Inkjet head and inkjet recording apparatus Chiaki Tanuma, Ryutaro Kusunoki, Shuhei Yokoyama 2014-11-04