Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7200682 | Time stamp generating system | Kunihiko Miyazaki, Seiichi Susaki, Kazuo Takaragi, Hiroshi Yoshiura, Takeshi Matsuki +3 more | 2007-04-03 |
| 7134021 | Method and system for recovering the validity of cryptographically signed digital data | Kunihiko Miyazaki, Hiroshi Yoshiura, Seiichi Susaki, Kazuo Takaragi, Hisashi Toyoshima +1 more | 2006-11-07 |
| 7047412 | Digital watermark data embedding method, and digital watermark data embeddability analyzing method | Isao Echizen, Hiroshi Yoshiura, Shinichiro Harano, Shinobu Eikawa | 2006-05-16 |
| 6889211 | Method and system for distributing multimedia data with management information | Hiroshi Yoshiura | 2005-05-03 |
| 6865677 | Contents rendering control method, contents reproducing equipment, and contents distribution equipment | Isao Echizen, Hiroshi Yoshiura, Shinichiro Harano, Shinobu Eikawa | 2005-03-08 |
| 6816969 | Digital signature generating method and digital signature verifying method | Kunihiko Miyazaki, Kazuo Takaragi, Seiichi Susaki, Hisanori Mishima, Takeshi Matsuki +3 more | 2004-11-09 |
| 6775775 | Method of physical individual authentication and system using the same | Hiroshi Yoshiura, Mitsuru Iwamura | 2004-08-10 |
| 6499105 | Digital data authentication method | Hiroshi Yoshiura, Kazuo Takaragi, Seiichi Susaki, Hisashi Toyoshima, Tsukasa Saito | 2002-12-24 |
| 6327658 | Distributed object system and service supply method therein | Seiichi Susaki, Katsuyuki Umezawa, Tadashi Kaji, Satoru Tezuka, Kuniaki Tabata +2 more | 2001-12-04 |
| 6131162 | Digital data authentication method | Hiroshi Yoshiura, Kazuo Takaragi, Seiichi Susaki, Hisashi Toyoshima, Tsukasa Saito | 2000-10-10 |
| 5767845 | Multi-media information record device, and a multi-media information playback device | Masahiro Oashi, Yuki Kusumi, Masahiro Kawai, Chihiro Kawahara | 1998-06-16 |
| 5750974 | Lighting apparatus having light emitting diodes arranged in a plurality of planes on a printed circuit board | Naoki Tanai, Masaaki Suhara | 1998-05-12 |
| 5504676 | Slip processing method processing data from slips with varying formats | Singi Domen, Kaori Kondoh, Koichi Yamano, Shinobu Koizumi, Rie Kobayashi +6 more | 1996-04-02 |
| 5483631 | Communication network management system for displaying operation states of network elements on a remote display unit | Yasuhiko Nagai, Sadao Niinobe, Michio Suzuki, Keizou Mizuguchi, Goro Ikeba | 1996-01-09 |
| 5381161 | Data processing apparatus | Akihiro Furukawa | 1995-01-10 |
| 5259729 | Propeller blade tip path plane inclining device | Yuji Fujihira, Masaru Ando | 1993-11-09 |
| 5204955 | Network management method and system | Takashi Kagei, Michio Suzuki, Keizou Mizoguchi, Hideaki Kobayashi, Kenzo Iioka | 1993-04-20 |
| 5167017 | Text editing device | — | 1992-11-24 |
| 5121481 | Text (word processor) having right end justified variable size display area for information related to input data | Toshiyuki Sakai, Hajime Kumazawa | 1992-06-09 |
| 5117458 | Secret information service system and method | Kazuo Takaragi, Tsutomu Nakamura, Minoru Koizumi, Yasuko Fukuzawa, Kenji Kataoka | 1992-05-26 |
| 5107423 | Document processing device with merge function | Tokiko Majima | 1992-04-21 |
| 5103479 | Encipher method and decipher method | Kazuo Takaragi, Fusao Nakagawa | 1992-04-07 |
| 5058186 | Method and apparatus for image compression | Shinichiro Miyaoka, Motohisa Funabashi | 1991-10-15 |
| 5031211 | Communication circuit switching or parallel operation system | Yasuhiro Nagai, Michio Suzuki, Shunichi Yosioka, Noboru Mizuhara | 1991-07-09 |
| 5018196 | Method for electronic transaction with digital signature | Kazuo Takaragi | 1991-05-21 |