Inventor · disambiguated record
Hiroyuki Kurumatani
Also filed as: KURUMATANI HIROYUKI
10 granted patents·517 citations·filing 1997–2006
92Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0189US7110545B2Method and apparatus for symmetric-key encryptionHITACHI LTD·Filed 2001·Granted Sep 19, 2006·62 cites·22 claims
- 0289US6370247B1Hash value generating method and device, data encryption method and device, data decryption method and deviceHITACHI LTD·Filed 2000·Granted Apr 9, 2002·60 cites·26 claims
- 0381US6876745B1Method and apparatus for elliptic curve cryptography and recording medium thereforeHITACHI LTD·Filed 1999·Granted Apr 5, 2005·105 cites·5 claims
- 0477US6341349B1Digital signature generating/verifying method and system using public key encryptionHITACHI LTD·Filed 1997·Granted Jan 22, 2002·102 cites·25 claims
- 0572US6141421AMethod and apparatus for generating hash valueHITACHI LTD·Filed 1997·Granted Oct 31, 2000·77 cites·7 claims
- 0666US6122375AHash value generating method and device, data encryption method and device, data decryption method and deviceHITACHI LTD·Filed 1998·Granted Sep 19, 2000·49 cites·14 claims
- 0765US7359515B2Method and apparatus for symmetric-key decryptionHITACHI LTD·Filed 2006·Granted Apr 15, 2008·2 cites·10 claims
- 0860US7200232B2Method and apparatus for symmetric-key decryptionHITACHI LTD·Filed 2001·Granted Apr 3, 2007·5 cites·13 claims
- 0953US6480606B1Elliptic curve encryption method and systemHITACHI LTD·Filed 1999·Granted Nov 12, 2002·27 cites·15 claims
- 1051US6236729B1Key recovery method and systemHITACHI LTD·Filed 1998·Granted May 22, 2001·28 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →