Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11056142 | Magnetic recording medium | Shinji Kawakami, Kenji Tanaka, Shinji Tsujimoto | 2021-07-06 |
| 9767835 | Magnetic recording medium | Kenji Tanaka, Masao Fujita | 2017-09-19 |
| 9311946 | Magnetic recording medium | Kenji Tanaka, Masao Fujita | 2016-04-12 |
| 9267047 | Ink composition for forming clear layer, method of applying the same, and printed article using the same | Katsuyuki Kito, Hideyuki Tanaka, Yoshiro Nishimura | 2016-02-23 |
| 9165586 | Magnetic recording medium | Shinji Kawakami, Kenji Tanaka | 2015-10-20 |
| 8613977 | Magnetic recording medium and method for manufacturing the same | Hisanobu Mikamo, Hidekazu Kawatoko, Makoto Shiokawa, Shinji Kawakami, Masanori Yamasaki +1 more | 2013-12-24 |
| 8593754 | Magnetic tape driving apparatus having a head displacing portion | Masao Fujita | 2013-11-26 |
| 8310783 | Magnetic tape head with limited ranges of tape wrap angle and distance between first and second edges | Shinji Kawakami, Toshio Kawakita | 2012-11-13 |
| 8199430 | Tape device having a tape cleaning structure | Yukihiro Hata, Shigeo Fujitani, Junichi Sato, Hisashi Takai | 2012-06-12 |
| 8164856 | Magnetic tape apparatus | Hiroyuki Ota, Yukihiro Hata, Junichiro Saikai | 2012-04-24 |
| 8159776 | Magnetic tape driving apparatus comprising a tape separation portion that separates a magnetic tape from a magnetoresistive head unit | Masao Fujita | 2012-04-17 |
| 8130463 | Data recording apparatus and data recording method | Masao Fujita, Kenji Tanaka | 2012-03-06 |
| 8124256 | Magnetic recording medium | Kazuhiko Nakiri | 2012-02-28 |
| 8081559 | Recording and reproducing apparatus and recording medium | Masao Fujita, Kenji Tanaka, Shinji Kawakami | 2011-12-20 |
| 8068308 | Servo signal recording apparatus, information recording apparatus, and tracking servo method | Masao Fujita, Shinji Kawakami, Toshio Kawakita | 2011-11-29 |
| 8035929 | Magnetic head assembly and magnetic tape driving apparatus | Toshio Kawakita, Shinji Kawakami | 2011-10-11 |
| 8027115 | Data recording apparatus for recording a data signal onto a magnetic recording medium and data recording system using the data recording apparatus | Masao Fujita, Kenji Tanaka | 2011-09-27 |
| 7981310 | Method for preparing magnetic paint and magnetic recording medium comprising the same | Kazuhiko Nakiri, Hiroyuki Mitsuhashi | 2011-07-19 |
| 7983007 | Magnetic tape apparatus | Kenji Tanaka | 2011-07-19 |
| 7969680 | Magnetic tape on which a servo pattern is formed | Kenji Tanaka, Kenichiro Yoshida | 2011-06-28 |
| 7961423 | Information recording apparatus | Kenji Tanaka, Kenichiro Yoshida | 2011-06-14 |
| 7871717 | Optical film and method for producing the same | Tomoki Inakura, Noriaki Otani | 2011-01-18 |
| 7869154 | Magnetic tape driving apparatus | Yoshiaki Kudo | 2011-01-11 |
| 7808736 | Servo signal recording apparatus, servo signal recording method, and magnetic tape | Kenji Tanaka, Kenichiro Yoshida, Masao Fujita | 2010-10-05 |
| 7722969 | Magnetic tape | Kazuhiko Nakiri | 2010-05-25 |