Issued Patents All Time
Showing 76–100 of 123 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741723 | Digital watermark embedding method and apparatus, and digital watermark | Tomoo Yamakage, Hirofumi Muratani, Toru Kambayashi, Shinichiro Koto | 2004-05-25 |
| 6698639 | Automatic wire supply system of wire cut electrodischarge machine | Yoichi Otomo, Yutaka Terada | 2004-03-02 |
| 6556679 | Copy-guard system and information recording medium used in the same system | Takehisa Kato, Taku Katoh, Kenjiro Endoh, Naoki Endoh | 2003-04-29 |
| 6490683 | Optical disk having electronic watermark, reproducing apparatus thereof and copy protecting method using the same | Hideo Ando, Tadashi Kojima, Kouichi Hirayama | 2002-12-03 |
| 6465069 | Information recording medium and method of manufacturing resinous substrate for use in the recording medium | Tadashi Kobayashi | 2002-10-15 |
| 6451401 | Information recording medium and method of manufacturing resinous substrate for use in the recording medium | Tadashi Kobayashi | 2002-09-17 |
| 6438692 | Copy protection apparatus and information recording medium used in this copy protection apparatus | Taku Kato, Takehisa Kato, Kenjiro Endoh, Naoki Endoh | 2002-08-20 |
| 6301663 | Copy protection apparatus and information recording medium used in this copy protection apparatus | Taku Kato, Takehisa Kato, Kenjiro Endoh, Naoki Endoh | 2001-10-09 |
| 6291047 | Information recording medium and method of manufacturing resinous substrates for use in the recording medium | Tadashi Kobayashi | 2001-09-18 |
| 6189589 | Molding method for laminated body using cooling air | Kazuhiro Tokunaga, Takashi Tsubosaki, Shoichi Itoh | 2001-02-20 |
| 6159572 | Information recording medium and method of manufacturing resinous substrate for use in the recording medium | Tadashi Kobayashi | 2000-12-12 |
| 6144743 | Information recording medium, recording apparatus, information transmission system, and decryption apparatus | Hideo Ando | 2000-11-07 |
| 6141483 | Recording medium for recording data, reproducing apparatus for reproducing data recorded on recording medium, and data reproducing system for reproducing data recorded on recording medium via network or the like | Hideo Ando | 2000-10-31 |
| 5987066 | Digital data transmitting method | Tadashi Kojima, Koichi Hirayama, Yoshiaki Moriyama, Fumihiko Yokogawa, Takao Arai +4 more | 1999-11-16 |
| 5930214 | Recording/reproducing optical head apparatus compatible with different optical media | Akihiro Kasahara, Isao Hoshino | 1999-07-27 |
| 5903531 | Reproduction device for optical disks | Hiroharu Satoh, Junichi Uota | 1999-05-11 |
| 5903067 | Power supply apparatus for electric discharge machine | Seiji Sato | 1999-05-11 |
| 5840149 | Molding method for laminated body using cooling air | Kazuhiro Tokunaga, Takashi Tsubosaki, Shoichi Itoh | 1998-11-24 |
| 5774078 | Single merging bit DC-suppressed run length limited coding | Shin-ichi Tanaka, Toshiyuki Shimada, Koichi Hirayama | 1998-06-30 |
| 5756956 | Wire-cut electric discharge machining apparatus and control method therefor | Seiji Sato, Takuji Magara, Yoshihito Imai, Tatsushi Sato | 1998-05-26 |
| 5729510 | Optical head used for recording on optical recording medium having various thicknesses, warpage and the like | Akihiro Kasahara, Isao Hoshino | 1998-03-17 |
| 5677801 | Magnetic recording/reproducing apparatus for automatically adjusting a recording current in accordance with the wear of a read head | Katsumi Fukuchi, Yasuyoshi Nishikawa | 1997-10-14 |
| 5609709 | Bonding process for fabricating an interior component | Masao Doumae, Fumihiko Saito | 1997-03-11 |
| 5474394 | Printing apparatus | Kiyoshi Koike, Jyunichi Aizawa, Hiroshi Nakao, Kunihiko Nakagawa | 1995-12-12 |
| 5475210 | Noise reduction system for optical record and reproduction apparatus using auto-power controlled semiconductor laser device | Toyoki Taguchi, Toshihiro Sugaya, Kei Shimura, Isao Hoshino, Masahiko Tanaka +4 more | 1995-12-12 |