RS

Ryoichi Sasaki

HI Hitachi: 34 patents #717 of 28,497Top 3%
KC Kuraray Co.: 16 patents #58 of 1,827Top 4%
Brother Kogyo: 15 patents #599 of 2,767Top 25%
HS Hitachi Control Systems: 3 patents #1 of 22Top 5%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
HE Hitachi Micro Computer Engineering: 2 patents #45 of 393Top 15%
KE Keyence: 2 patents #108 of 266Top 45%
KC Kurray Co.: 2 patents #1 of 24Top 5%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
BI Brother Industries: 1 patents #202 of 325Top 65%
HS Hitachi Information & Control Systems: 1 patents #11 of 58Top 20%
NC Nippon Electric Industry Co.: 1 patents #5 of 23Top 25%
Overall (All Time): #25,510 of 4,157,543Top 1%
75
Patents All Time

Issued Patents All Time

Showing 26–50 of 75 patents

Patent #TitleCo-InventorsDate
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