Issued Patents All Time
Showing 51–75 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7020120 | Mobile IP communication scheme using dynamic address allocation protocol | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Toshio Okamoto, Masataka Goto +1 more | 2006-03-28 |
| 6985428 | Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features | Keiichi Tsutsui, Masayuki Arai, Katsuhisa Aratani | 2006-01-10 |
| 6980508 | Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features | Keiichi Tsutsui, Masayuki Arai, Katsuhisa Aratani | 2005-12-27 |
| 6973068 | Mobile IP communication scheme incorporating individual user authentication | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Toshio Okamoto | 2005-12-06 |
| 6944181 | Mobile IP communication scheme for supporting mobile computer move over different address spaces | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda | 2005-09-13 |
| 6940800 | Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method | Kensuke Fujimoto, Shunji Yoshimura, Yasuhito Tanaka | 2005-09-06 |
| 6934274 | Mobile IP communication scheme using dynamic address allocation protocol | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Toshio Okamoto, Masataka Goto +1 more | 2005-08-23 |
| 6891819 | Mobile IP communications scheme incorporating individual user authentication | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Toshio Okamoto | 2005-05-10 |
| 6885628 | Optical recording medium, recording, and reproduction apparatus having multiple recording capacity features | Keiichi Tsutsui, Masayuki Arai, Katsuhisa Aratani | 2005-04-26 |
| 6829205 | Optical pickup, tilt detection apparatus, tilt detection method and optical disk apparatus | — | 2004-12-07 |
| 6781930 | Diffraction grating, optical pick-up, error signal detection device, and error signal detection method | — | 2004-08-24 |
| 6775221 | Optical pickup and recording and/or reproducing apparatus | — | 2004-08-10 |
| 6635920 | Non-volatile semiconductor memory device and manufacturing method thereof | Takahiro Ohnakado, Satoshi Shimizu | 2003-10-21 |
| 6587882 | Mobile IP communication scheme using visited site or nearby network as temporal home network | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda | 2003-07-01 |
| 6510153 | Mobile IP communication scheme using dynamic address allocation protocol | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Toshio Okamoto, Masataka Goto +1 more | 2003-01-21 |
| 6501767 | Mobile IP communication scheme for supporting mobile computer move over different address spaces | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda | 2002-12-31 |
| 6493296 | Optical disc inclination detecting method, optical pickup device, and optical disc device | Shinichi Kai | 2002-12-10 |
| 6441426 | Nonvolatile semiconductor memory device and method of manufacturing the same | Natsuo Ajika | 2002-08-27 |
| 6434108 | Optical disc having narrow recording track relative to light spot diameter | Yutaka Kasami, Koichi Yasuda | 2002-08-13 |
| 6421304 | Magneto-optical reproducing apparatus using magnetic wall displacement detector | Shunji Yoshimura, Shinichi Kai | 2002-07-16 |
| 6240514 | Packet processing device and mobile computer with reduced packet processing overhead | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto | 2001-05-29 |
| 6236081 | AND-type non-volatile semiconductor memory device and method of manufacturing thereof | — | 2001-05-22 |
| 6170057 | Mobile computer and method of packet encryption and authentication in mobile computing based on security policy of visited network | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto | 2001-01-02 |
| 6167513 | Mobile computing scheme using encryption and authentication processing based on mobile computer location and network operating policy | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto | 2000-12-26 |
| 6163843 | Packet inspection device, mobile computer and packet transfer method in mobile computing with improved mobile computer authenticity check scheme | Atsushi Inoue, Masahiro Ishiyama, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto | 2000-12-19 |