Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |