YM

Yoshikane Matsumoto

HC Hitachi Koki Co.: 21 patents #28 of 888Top 4%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
RS Ricoh Printing Systems: 3 patents #44 of 200Top 25%
HS Hitachi Printing Solutions: 2 patents #23 of 99Top 25%
Overall (All Time): #124,100 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
11370230 Device and liquid discharge apparatus Naohiro Toda, Toshiya Satoh, Teiichiro Ishikawa, Masaya Hamaguchi, HuiZee Then +1 more 2022-06-28
9375958 Image forming apparatus and assembly system of image forming apparatus Yuuji Ohmura, Yasushi Hashimoto 2016-06-28
9259947 Image forming apparatus and assembly system of image forming apparatus Yuuji Ohmura, Yasushi Hashimoto 2016-02-16
8870328 Image forming apparatus and assembly system of image forming apparatus Yuuji Ohmura, Yasushi Hashimoto 2014-10-28
7413294 Inkjet head with high density nozzle packing Satoru Tobita, Yoshitaka Akiyama, Toshiharu Sumiya 2008-08-19
7131718 Inkjet head and ejection device Ryouta Matsufuji, Satoru Tobita, Yoshitaka Akiyama, Toshiharu Sumiya 2006-11-07
7090340 Inkjet recording head and inkjet recording apparatus using the same Satoru Tobita, Yoshitaka Akiyama, Toshiharu Sumiya 2006-08-15
7077511 Housing used in inkjet head Osamu Machida, Tomohiko Koda, Satoru Tobita, Yoshitaka Akiyama, Toshiharu Sumiya 2006-07-18
6837574 Line scan type ink jet recording device Takahiro Yamada, Shinya Kobayashi, Hitoshi Kida, Kunio Satou, Toshitaka Ogawa +2 more 2005-01-04
6618159 Method of switching print modes of printing device Satoru Tobita, Hideaki Mamiya 2003-09-09
6561629 Charging/deflecting device capable of effectively deflecting ink droplet Takahiro Yamada, Kunio Satou, Shinya Kobayashi, Hitoshi Kida, Kazuo Shimizu +2 more 2003-05-13
6231250 Method of controlling reciprocal movement of hammer rank in print device Satoru Tobita, Hideaki Mamiya, Yuji Ohmura 2001-05-15
5662421 Print speed controlled dot line printer depending on print density Kiyohito Hagiwara, Shingo Nakahara, Masami Iwama 1997-09-02
5618118 Impact printer and ribbon cassette Toshio Hiki, Shingo Nakahara, Kohichi Yageta, Hiroyuki Kurosawa, Kohki Kushima 1997-04-08
5586496 Dot line printer with adjusted dot positions for canceling sheet feed error Makoto Shinohara, Shigenori Suematsu 1996-12-24
5291824 Dot line printer having ordinary low dot and high dot density printing modes Hiroto Inagawa, Shingo Nakahara, Youichi Hujita 1994-03-08
D340257 Line printer for electronic computer Hideki Ishida, Hideaki Hasegawa, Toshiaki Fujieda, Toshiyuki Ito, Fukuji Neya 1993-10-12
5241904 Dot like printer employing overlapped current applying sequence to coils of different groups Hirotaka Kobayashi, Shigenori Suematsu, Shozo Ishii 1993-09-07
5237918 Printing head in a dot-line printer Hirotaka Kobayashi, Toshio Hiki, Koichi Yageta 1993-08-24
5228386 Print hammer assembly for dot line printer Shigenori Suematsu, Hirotaka Kobayashi, Kenichi Kugai, Shinichi Sakamoto 1993-07-20
5219235 Dot line printer having improved yoke assembly Shigenori Suematsu, Toshio Hiki, Shinichi Sakamoto 1993-06-15
5215392 Dot line printer with paper slack elimination mechanism Satoru Tobita, Youichi Hujita 1993-06-01
5193920 Dot line printer with paper feed time controlling capability Toshio Hiki, Toshiaki Fujieda, Shingo Nakahara, Shozo Ishii, Hiroto Inagawa 1993-03-16
5192148 Dot line printer having improved comb yoke Shigenori Suematsu, Shinichi Sakamoto, Hirotaka Kobayashi 1993-03-09
5156474 Method of controlling an ink ribbon moving speed in a dot line printer Hiroyuki Kurosawa, Shozo Ishii, Kiichi Morota 1992-10-20