Issued Patents All Time
Showing 25 most recent of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11880225 | Host device, slave device, and data transfer system | Tadashi Ono, Isao Kato | 2024-01-23 |
| 11001281 | Train communication system | Nobuhiko Arashin | 2021-05-11 |
| 10967890 | Train communication system | Nobuhiko Arashin | 2021-04-06 |
| 10448262 | Communication system, transmission terminal and reception terminal | Akira YAMASAKI, Nobuhiko Arashin | 2019-10-15 |
| 10162833 | Wireless access device and wireless access system | Masayuki Toyama | 2018-12-25 |
| 9921975 | Cryptographic processing device having a non-volatile memory including memory cells in an initial or a variable state | Yoshikazu Katoh, Shinji Inoue, Masato Suto | 2018-03-20 |
| 9811476 | Encryption and recording apparatus, encryption and recording system, and encryption and recording method | Shinji Inoue, Yoshikazu Katoh | 2017-11-07 |
| 9778857 | Recording device, access device, recording system, and recording method | Masayuki Toyama, Hirokazu So | 2017-10-03 |
| 9762671 | Wireless access device and wireless access system | Masayuki Toyama | 2017-09-12 |
| 9515727 | In-band optical signal-to-noise ratio monitor | Jeng-Yuan Yang, Youichi Akasaka, Motoyoshi Sekiya, Hiroki Ooi, Satoru Okano | 2016-12-06 |
| 9515733 | Mitigation of spectral offset in an optical filter | Youichi Akasaka, Jeng-Yuan Yang, Motoyoshi Sekiya, Hiroki Ooi, Satoru Okano | 2016-12-06 |
| 9331954 | Functional device, access system, and communication establishing method | Masayuki Toyama, Isao Kato, Shinichiro Nishioka, Satoshi Senga | 2016-05-03 |
| 9270369 | Correction table for interferometric optical signal-to-noise ratio monitor | Jeng-Yuan Yang, Youichi Akasaka, Motoyoshi Sekiya, Hiroki Ooi, Kentaro Nakamura +1 more | 2016-02-23 |
| 9262352 | Access device, communication device, communication system, and data access method | Masahiro Nakamura | 2016-02-16 |
| 9208356 | Semiconductor device including encryption section, semiconductor device including external interface, and content reproduction method | Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takayuki Ito, Yasushi Yamada +1 more | 2015-12-08 |
| 9112605 | Dual-polarization interferometric optical signal-to-noise ratio monitor | Jeng-Yuan Yang, Youichi Akasaka, Motoyoshi Sekiya, Hiroki Ooi, Satoru Okano | 2015-08-18 |
| 9026715 | Information recording device, information recording system, and information communication method | Tatsuya Adachi | 2015-05-05 |
| 9015444 | Access apparatus and available storage space calculation method | Tsutomu Mori, Masafumi Nosaka, Takeshi Umemoto | 2015-04-21 |
| 8990487 | Semiconductor memory card access apparatus, a computer-readable recording medium, an initialization method, and a semiconductor memory card | Teruto Hirota | 2015-03-24 |
| 8977802 | Access device, information recording device, controller, real time information recording system, access method, and program | Masayuki Toyama, Hirokazu So, Yoshinori Nakashima, Katsumi Watanabe, Masafumi Nosaka | 2015-03-10 |
| 8958706 | Coherent optical communication device and method | — | 2015-02-17 |
| 8914579 | Access device, information recording device, controller, and information recording system | Shigekazu Kogita, Shinji Inoue, Hiroki Etoh, Makoto Ochi, Masahiro Nakamura | 2014-12-16 |
| 8751734 | Semiconductor memory card access apparatus, a computer-readable recording medium, an initialization method, and a semiconductor memory card | Teruto Hirota | 2014-06-10 |
| 8719595 | Semiconductor device including encryption section, semiconductor device including external interface, and content reproduction method | Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takayuki Ito, Yasushi Yamada +1 more | 2014-05-06 |
| 8661186 | Nonvolatile memory device, access device, and nonvolatile memory system | Toshiyuki Honda, Masahiro Nakanishi, Tadashi Ono, Tatsuya Adachi, Isao Kato | 2014-02-25 |