Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9800914 | Communication system, receiving device, server, and communication method | Kunio Gobara, Satoru Matsunaga | 2017-10-24 |
| 7418511 | Secured TCP/IP communication system for devices and private networks connected to the internet | Hideaki Takechi, Naonori Kato, Hidetoshi Takeda, Toshiki Yamamura, Shinji Hamai | 2008-08-26 |
| 6424482 | System for recording and reproducing data having scheme for minimizing variation in record track width when recording at different data rates | Yoshifumi Yanagawa, Masahiro Motosugi, Akihiro Takeuchi, Masaaki Kobayashi, Katsumi Gotoh +2 more | 2002-07-23 |
| 6178288 | Reproduction device | Yoshifumi Yanagawa | 2001-01-23 |
| 6154332 | System for recording and reproducing data having scheme for minimizing variation in record track width when recording at different data rates | Yoshifumi Yanagawa, Masahiro Motosugi, Katsumi Gotoh | 2000-11-28 |
| 6141487 | Data recording/reproducing apparatus and method for high speed play | Yoshifumi Yanagawa, Makoto Goto, Akira Iketani, Akihiro Takeuchi, Masazumi Yamada +2 more | 2000-10-31 |
| 5953486 | Recording and reproducing apparatus | Yasuo Hamamoto, Kenji Morimoto, Akihiro Takeuchi, Mutsuyuki Okayama, Katsufumi Kohno +1 more | 1999-09-14 |
| 5841941 | Encoded data stream recording and reproducing apparatus with tape speed, channel number, and cylinder speed control in accordance with bit rate | Kenji Morimoto, Akihiro Takeuchi, Yasuo Hamamoto, Masazumi Yamada, Mutsuyuki Okayama +3 more | 1998-11-24 |
| 5590007 | Magnetic head driving apparatus having a magnetic head which is immune to the influence of a magnetic circuit | Yoshifumi Yanagawa | 1996-12-31 |
| 5444581 | Rotary head for use in a magnetic recordiang and reproducing apparatus wihich includes height adjuster | Yoshifumi Yanagawa | 1995-08-22 |
| 5402279 | Tracking apparatus for helical scan video tape recorders | Yoshifumi Yanagawa, Hiroshi Mitani | 1995-03-28 |
| 4636696 | Servo system | Hiroshi Minakuchi, Yoshiaki Igarashi | 1987-01-13 |