Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8152267 | Ink jet recording apparatus | Yukuo Yamaguchi, Yutaka Koizumi | 2012-04-10 |
| 8100505 | Liquid ejecting head and manufacturing dimension control method | Tomotsugu Kuroda, Toru Yamane, Masaki Oikawa, Yuichiro Akama, Chiaki Muraoka +1 more | 2012-01-24 |
| 8087759 | Print head with offset ejection ports | Masaki Oikawa, Keiji Tomizawa, Toru Yamane, Yuichiro Akama, Chiaki Muraoka +3 more | 2012-01-03 |
| 8052251 | Ink jet recording head | Kiyomitsu Kudo, Yukuo Yamaguchi, Genji Inada, Masaru Iketani, Satoshi Kudo +3 more | 2011-11-08 |
| 7963635 | Inkjet print head | Masaki Oikawa, Keiji Tomizawa, Toru Yamane, Chiaki Muraoka, Yuichiro Akama +1 more | 2011-06-21 |
| 7938511 | Liquid ejection head, inkjet printing apparatus and liquid ejecting method | Keiji Tomizawa, Toru Yamane, Chiaki Muraoka, Yuichiro Akama, Masaki Oikawa +1 more | 2011-05-10 |
| 7784908 | Flexible film wiring board and liquid discharge head | Yutaka Koizumi, Yukuo Yamaguchi, Akira Goto, Masaru Iketani, Yuichiro Akama | 2010-08-31 |
| 7070267 | Liquid jet recording head and liquid jet recording apparatus | Yukuo Yamaguchi, Yutaka Koizumi, Takeshi Yamakubo | 2006-07-04 |
| 6975466 | Liquid discharge recording head, liquid discharge recording apparatus, and method for manufacturing liquid discharge head | Yutaka Koizumi, Yukuo Yamaguchi, Hideo Fukazawa, Hiroki Tajima, Nobuyuki Hatasa | 2005-12-13 |
| 6957883 | Liquid discharge recording head | Yukuo Yamaguchi, Yutaka Koizumi | 2005-10-25 |
| 6953243 | Liquid ejecting head unit and manufacturing method therefor | Yukuo Yamaguchi, Hiroki Tajima | 2005-10-11 |
| 6913351 | Liquid jet recording head and recording apparatus | Yukuo Yamaguchi, Yutaka Koizumi | 2005-07-05 |
| 6880925 | Liquid discharge recording head, liquid discharge recording apparatus, and method for producing stopper member for liquid discharge recording head | Yukuo Yamaguchi, Yutaka Koizumi | 2005-04-19 |
| 6824243 | Liquid jet print head and liquid jet printing apparatus | Yukuo Yamaguchi, Yutaka Koizumi | 2004-11-30 |
| 6808256 | Sealing member, connecting structure using sealing member, and liquid discharge recording head | Yutaka Koizumi, Yukuo Yamaguchi, Takeshi Yamakubo | 2004-10-26 |
| D491221 | Ink cartridge for printer | Yutaka Koizumi | 2004-06-08 |
| D490102 | Ink cartridge for printer | Nobuyuki Hatasa, Yutaka Koizumi | 2004-05-18 |
| 6726315 | Liquid supplying device and liquid discharge recording apparatus | Yutaka Koizumi, Yukuo Yamaguchi, Takeshi Yamakubo | 2004-04-27 |
| 6715865 | Liquid jet recording head packing method, liquid jet recording head and liquid jet recording apparatus | Yukuo Yamaguchi, Yutaka Koizumi | 2004-04-06 |
| 6659595 | Liquid jet recording head | Yukuo Yamaguchi, Yutaka Koizumi, Takeshi Yamakubo | 2003-12-09 |
| 6652062 | LIQUID DISCHARGE RECORDING HEAD WITH ORIFICE PLATE HAVING EXTENDED PORTION FIXED TO RECORDING HEAD MAIN BODY, LIQUID DISCHARGE RECORDING APPARATUS HAVING SUCH HEAD, AND METHOD FOR MANUFACTURING SUCH HEAD | Yutaka Koizumi, Yukuo Yamaguchi, Hideo Fukazawa, Hiroki Tajima, Nobuyuki Hatasa | 2003-11-25 |
| 6626514 | Liquid discharge recording head, method of manufacture therefor, and liquid discharge recording apparatus | Hiroki Tajima, Yutaka Koizumi, Yukuo Yamaguchi, Nobuyuki Hatasa | 2003-09-30 |
| 6540343 | Liquid ejecting head unit and manufacturing method therefor | Yukuo Yamaguchi, Hiroki Tajima | 2003-04-01 |
| 6431681 | Recording apparatus, liquid container cartridge and liquid container | Nobuyuki Hatasa, Yutaka Koizumi, Yukuo Yamaguchi, Hideo Fukazawa, Hiroki Tajima | 2002-08-13 |