Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12396368 | Piezoelectric element | Yusuke Kagawa, Kazuo Hiraguchi | 2025-08-19 |
| 12075211 | Laminated piezoelectric element and electroacoustic transducer | Kazuo Hiraguchi, Yusuke Kagawa, Tetsu Miyoshi | 2024-08-27 |
| 11895463 | Piezoelectric element | Yusuke Kagawa, Kazuo Hiraguchi | 2024-02-06 |
| 9147432 | Head cleaning device and drive device | — | 2015-09-29 |
| 9076496 | Tape cleaning device and drive device | — | 2015-07-07 |
| 8006930 | Reel | Yasuhiro Mori | 2011-08-30 |
| 7857250 | Recording tape cartridge and rotation locking structure | Kenji Takenoshita | 2010-12-28 |
| 7832683 | Reel and manufacturing method thereof | — | 2010-11-16 |
| 7568654 | Reel | Yosuke Sumiya | 2009-08-04 |
| 7533840 | Reel and recording tape cartridge | Yosuke Sumiya | 2009-05-19 |
| 7516913 | Cartridge case for magnetic tape cartridge and magnetic tape cartridge | — | 2009-04-14 |
| 7347397 | Reel and recording tape cartridge | Ren Ishikawa | 2008-03-25 |
| 7316314 | Tape cassette storing case with stacking ribs | Hiroyuki Naito | 2008-01-08 |
| 7301728 | Recording medium cartridge having an accommodation portion for a noncontact-type memory | Kazuo Hiraguchi, Daisuke Takahashi, Shozo Onmori | 2007-11-27 |
| 7187522 | Tape cassette | — | 2007-03-06 |
| 7126791 | Recording medium cartridge having an accommodation portion for a noncontact-type memory | Kazuo Hiraguchi, Daisuke Takahashi, Shozo Onmori | 2006-10-24 |
| 7073741 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Atusi Takano | 2006-07-11 |
| 6954336 | Recording tape cassette having an approved reel lock member | — | 2005-10-11 |
| 6923396 | Recording tape cassette | — | 2005-08-02 |
| 6866215 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Atusi Takano | 2005-03-15 |
| 6863233 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Atusi Takano | 2005-03-08 |
| 6855285 | Magnetic tape cassette | Hiroyuki Naito, Kiyoo Morita, Shozo Onmori, Katsuki Asano, Masayoshi Moriwaki | 2005-02-15 |
| 6853516 | Recording tape cassette | — | 2005-02-08 |
| 6821469 | Method of manufacturing a roller | — | 2004-11-23 |
| 6817561 | Magnetic tape cassette | Kazuo Hiraguchi, Shozo Onmori, Atusi Takano | 2004-11-16 |