Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8945957 | Method of manufacturing liquid ejection head | Hiroto Komiyama, Satoshi Ibe, Kouji Hasegawa, Shiro Sujaku, Yoshinori Tagawa | 2015-02-03 |
| 8904639 | Method of producing liquid ejection head | Keiji Matsumoto, Shuji Koyama, Sakai Yokoyama, Kenji Fujii | 2014-12-09 |
| RE44945 | Manufacturing method for ink jet recording head chip, and manfuacturing method for ink jet recording head | Toshiyasu Sakai, Shuji Koyama, Kenji Ono | 2014-06-17 |
| 8429820 | Method of manufacturing liquid discharge head | Shuji Koyama, Sakai Yokoyama, Kenji Fujii, Keiji Matsumoto, Tetsuro Honda +3 more | 2013-04-30 |
| 8430476 | Method for manufacturing liquid discharge head | Masaki Ohsumi, Masahisa Watanabe, Keiji Edamatsu | 2013-04-30 |
| 8408678 | Liquid ejection head and method for producing the same | Mitsuru Chida, Kenji Fujii, Tetsuro Honda | 2013-04-02 |
| 8329047 | Method for producing liquid discharge head | Tadanobu Nagami, Junichi Kobayashi, Takeshi Terada, Makoto Watanabe, Hiroyuki Abo +8 more | 2012-12-11 |
| 8187898 | Method for manufacturing liquid discharge head | Masaki Ohsumi, Masahisa Watanabe, Keiji Edamatsu | 2012-05-29 |
| 8128204 | Liquid ejection head and method for manufacturing liquid ejection head | Noriyasu Ozaki, Junichi Kobayashi, Shuji Koyama, Tadanobu Nagami, Yoshinori Tagawa +8 more | 2012-03-06 |
| 8057017 | Ink jet recording head with ink supply ports having a cross-section with varying width | Toshiyasu Sakai, Shuji Koyama, Kenji Ono | 2011-11-15 |
| 7930824 | Method of manufacturing ink jet recording head | Masaki Ohsumi, Shuji Koyama, Yoshinori Tagawa, Hiroyuki Murayama, Kenji Fujii +1 more | 2011-04-26 |
| 7901064 | Ink jet recording head with ink filter formed of a plurality of stacked films | Yoshinobu Urayama, Kenji Fujii, Masaki Ohsumi, Hiroyuki Murayama, Yoshinori Tagawa +1 more | 2011-03-08 |
| 7891784 | Liquid ejection head and method for manufacturing liquid ejection head | Noriyasu Ozaki, Junichi Kobayashi, Shuji Koyama, Tadanobu Nagami, Yoshinori Tagawa +8 more | 2011-02-22 |
| 7862158 | Method of manufacturing ink jet recording head, ink jet cartridge | Kenji Fujii, Shuji Koyama, Masaki Osumi, Shingo Nagata, Yoshinori Tagawa +2 more | 2011-01-04 |
| 7824560 | Manufacturing method for ink jet recording head chip, and manufacturing method for ink jet recording head | Toshiyasu Sakai, Shuji Koyama, Kenji Ono | 2010-11-02 |
| 7753502 | Method of manufacturing ink jet recording head, ink jet recording head, and ink jet cartridge | Kenji Fujii, Shuji Koyama, Masaki Osumi, Shingo Nagata, Yoshinori Tagawa +2 more | 2010-07-13 |
| 7735961 | Liquid discharge head and method of producing the same | Shuji Koyama, Yoshinori Tagawa, Kenji Fujii, Hiroyuki Murayama, Masaki Ohsumi +1 more | 2010-06-15 |
| 7727411 | Manufacturing method of substrate for ink jet head and manufacturing method of ink jet recording head | Shuji Koyama, Kenji Ono, Toshiyasu Sakai | 2010-06-01 |
| 7523553 | Method of manufacturing ink jet recording head | Masaki Ohsumi, Shuji Koyama, Yoshinori Tagawa, Hiroyuki Murayama, Kenji Fujii +1 more | 2009-04-28 |
| 7475966 | Liquid discharge recording head and method for manufacturing same | Kenji Fujii, Shuji Koyama, Masaki Osumi, Hiroyuki Murayama | 2009-01-13 |
| 7470375 | Method for manufacturing liquid ejection head, substrate for liquid ejection head, and liquid ejection head | Shuji Koyama, Shingo Nagata, Kenji Fujii, Masaki Osumi | 2008-12-30 |
| 7377625 | Method for producing ink-jet recording head having filter, ink-jet recording head, substrate for recording head, and ink-jet cartridge | Shuji Koyama, Kenji Fujii, Shingo Nagata | 2008-05-27 |
| 7322104 | Method for producing an ink jet head | Shuji Koyama, Shingo Nagata, Kenji Fujii, Masaki Osumi | 2008-01-29 |
| 7300596 | Method of manufacturing liquid discharge head | Hiroyuki Murayama, Shuji Koyama, Yoshinori Tagawa, Kenji Fujii, Masaki Ohsumi +3 more | 2007-11-27 |
| 7287847 | Method of manufacturing ink jet recording head, ink jet recording head, and ink jet cartridge | Kenji Fujii, Shuji Koyama, Masaki Osumi, Shingo Nagata, Yoshinori Tagawa +2 more | 2007-10-30 |