Kasahara, Masao
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 24, 2006 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 32 Total Citation Count
- Jul 26, 1999 Earliest Filing
- 5 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6990200 Encryption method, cryptographic communication method, ciphertext generating device and cryptographic communication system of public-key cryptosystemExpiredNov 01, 00Jan 24, 06[H04N]
6912654 Secret key generating method, encryption method, cryptographic communication method and cryptographic communication systemExpiredJan 23, 01Jun 28, 05[H04L]
6683953 Encoding method, encoding-decoding apparatus, and code communications systemExpiredJul 26, 99Jan 27, 04[H04L, H04K]
2001/0010,721 Common key generating method, common key generating apparatus, encryption method, cryptographic communication method and cryptographic communication systemAbandonedJan 22, 01Aug 02, 01[H04L]
2001/0009,583 Secret key registration method, secret key register, secret key issuing method, cryptographic communication method and cryptographic communication systemAbandonedJan 22, 01Jul 26, 01[H04L]
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