Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10217484 | Metallic plate and recording tape cartridge | Yosuke Sumiya | 2019-02-26 |
| D837049 | Packaging container | Yosuke Sumiya, Chihiro YAMAMOTO | 2019-01-01 |
| 9812167 | Magnetic tape cartridge | Yosuke Sumiya | 2017-11-07 |
| 7540446 | Recording tape cartridge | — | 2009-06-02 |
| 7429344 | Method of mounting a resin-molded member | — | 2008-09-30 |
| 7359153 | Recording medium cartridge | — | 2008-04-15 |
| 7287716 | Magnetic tape cartridge | — | 2007-10-30 |
| 7232088 | Reel and recording tape cartridge | Seiji Tsuyuki, Ren Ishikawa | 2007-06-19 |
| 7201341 | Recording tape cartridge | Ren Ishikawa | 2007-04-10 |
| 7188796 | Magnetic tape cartridge | — | 2007-03-13 |
| 7014136 | Magnetic tape cassette | Kazuo Hiraguchi, Masayoshi Moriwaki | 2006-03-21 |
| 6913723 | Process of making a guide roller for a magnetic tape cassette | Masayoshi Moriwaki, Shigeru Nishiyama | 2005-07-05 |
| 6855285 | Magnetic tape cassette | Teruo Ashikawa, Hiroyuki Naito, Kiyoo Morita, Shozo Onmori, Masayoshi Moriwaki | 2005-02-15 |
| 6837454 | Recording tape cassette | — | 2005-01-04 |
| 6804084 | Magnetic tape cassette having reduced friction against tape reels | Teruo Ashikawa, Hiroyuki Naito, Kiyoo Morita, Shozo Onmori, Masayoshi Moriwaki | 2004-10-12 |
| 6758428 | Tape reel for use in magnetic tape cassette | Kazuo Hiraguchi, Hiroyuki Naito, Shigeru Nishiyama, Hideki Uchikura, Akihiro Hashimoto | 2004-07-06 |
| 6755368 | Recording tape cassette | — | 2004-06-29 |
| 6742739 | Magnetic tape cassette, guide roller, and a method of manufacturing a guide roller | Masayoshi Moriwaki, Shigeru Nishiyama | 2004-06-01 |
| 6643096 | Magnetic tape cassette having improved positioning | Teruo Ashikawa, Hiroyuki Naito, Kiyoo Morita, Shozo Onmori, Masayoshi Moriwaki | 2003-11-04 |
| 6595450 | Magnetic tape cassette, guide roller, and a method of manufacturing a guide roller | Masayoshi Moriwaki, Shigeru Nishiyama | 2003-07-22 |
| 6474978 | Magnetic tape cassette molding apparatus | Kiyoo Morita, Kazuo Hiraguchi | 2002-11-05 |
| 6407887 | Magnetic tape cassette having a lid lock | Teruo Ashikawa | 2002-06-18 |
| 6325613 | Molding die for molding a component of magnetic tape cartridge | Kiyoo Morita, Kazuo Hiraguchi | 2001-12-04 |
| 6286776 | Magnetic tape cassette | Kiyoo Morita, Kazuo Hiraguchi | 2001-09-11 |
| 6224362 | Molding die for molding a component of magnetic tape cartridge | Kiyoo Morita, Kazuo Hiraguchi | 2001-05-01 |