Inventor
Harunaga Hiwatari
Inventor
Kanagawa, JP
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication63%
G06FElectric digital data processing19%
G09CCiphering or deciphering apparatus for cryptographic or other purposes involving the need for secrecy16%
G07FCoin-freed or like apparatus3%
PatentTitleYear
10,020,945Information processing apparatus and to efficiently substitute coefficients of a multivariate polynomial20189,979,549Information processing to perform authentication between a prover and a verifier20189,672,007'Device for performing arithmetic operations of multivariate polynomials, control method, and program'20179,602,285'Authentication device, authentication method, and program'20179,516,007'Verifier and prover have an authentication protocol with challenge-response with the challenge from prover having identification of the verifier'20169,418,245'Encryption processing device, encryption processing method, and program'20169,276,735'Information processing apparatus, signature generation apparatus, information processing method, signature generation method, and program'20169,270,458'Encryption processing device, encryption processing method, and program'20169,129,122'Signature verification apparatus, signature verification method, program, and recording medium'20159,123,194'Print medium, card creation method, and program'20159,083,507'Data processing device, data processing method, and program'20159,076,000'Authentication device, authentication method, and program'20159,031,230'Encryption processing device, encryption processing method, and program'20158,983,062'Encryption processing device, encryption processing method, and programme'20158,959,355'Authentication device, authentication method, program, and signature generation device'20158,826,025'Authentication device, authentication method, program, and signature generation device'20148,675,867'Key generation algorithm using secret polynomial over finite ring and transformation'20148,522,033'Authentication device, authentication method, program, and signature generation device'20138,433,912'Authentication device, authentication method, program, and signature generation device'20138,213,609'Key generating device, encrypting device, receiving device, key generating method, encrypting method, key processing method, and program'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2018Patents assigned to SONY CORP (19)· patent assignee history
2012–2018Patents assigned to HIWATARI HARUNAGA (14)· patent assignee history
2012Based in Tokyo, JP· patent location history
2013–2018Patents assigned to SHIRAI TAIZO (12)· patent assignee history
2013–2018Patents assigned to SAKUMOTO KOICHI (8)· patent assignee history
2013–2018Based in Kanagawa, JP· patent location history
2015–2016Patents assigned to AKISHITA TORU (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 19 | 2012–2018 |
| HIWATARI HARUNAGAself | 14 | 2012–2018 |
| SHIRAI TAIZO | 12 | 2013–2018 |
| SAKUMOTO KOICHI | 8 | 2013–2018 |
| AKISHITA TORU | 5 | 2015–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 19 | 2013–2018 |
| Tokyo, JP | 1 | 2012 |