Company Filing History:

10 out of 112

Nihon Tokushu Noyaku Seizo K.k.

patents

3 out of 35,658

Nec Corporation

patents

3 out of 832,680

Other

patents

Years Active: 1989-2001

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6272225 - Key recovery condition encryption and decryption apparatuses (2001-08-07),

2. 6266421 - Key recovery system and key recovery method (2001-07-24),

3. 6185308 - Key recovery system (2001-02-06),

4. 6169803 - Encryption key processing system to be incorporated into data recovery system or key setting system for generating encryption key (2001-01-02),

5. 5689567 - Electronic signature method and apparatus (1997-11-18),

6. 5661805 - Signature verification apparatus capable of obtaining information (1997-08-26),

7. 5077401 - Benzo-fused cyclic compounds (1991-12-31),

8. 5034051 - Heterocyclic compounds (1991-07-23),

9. 5017213 - 1-phenylpyrroles (1991-05-21),

10. 5007952 - Herbicidal novel benzothiazolonyl pyrroles (1991-04-16),

11. 4971619 - Benzothiazolone (1990-11-20),

12. 4909828 - Herbicidally active 2,5-dihydropyrroles (1990-03-20),

13. 4902335 - Benzo-fused cyclic compounds (1990-02-20),

14. 4845230 - 2,5-dihydropyrroles (1989-07-04),

15. 4828604 - 2,5-dihydropyrroles (1989-05-09),

Title: Hiroshi Miyauchi: Innovator in Key Recovery Technologies

Introduction

Hiroshi Miyauchi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of encryption and key recovery systems. With a total of 16 patents to his name, Miyauchi's work has advanced the security and efficiency of data protection technologies.

Latest Patents

Miyauchi's latest patents include a key recovery condition encryption and decryption apparatus. This apparatus features a hashing unit that calculates a hash value based on a key recovery information text. It also includes a first concatenating unit that combines the hash value with the key recovery condition. The condition information encryption unit then encrypts this concatenated result using a first encryption key. Additionally, he has developed a key recovery system and method aimed at improving the efficiency of conventional key recovery systems. This system includes check units that verify user recovery authorization and a key recovery control unit that decrypts messages to recover common keys.

Career Highlights

Throughout his career, Miyauchi has worked with notable companies, including Nihon Tokushu Noyaku Seizo K.K. His innovative approaches have positioned him as a key figure in the development of secure communication technologies.

Collaborations

Miyauchi has collaborated with esteemed colleagues such as Toyohiko Kume and Toshio Goto. Their joint efforts have contributed to the advancement of encryption technologies and key recovery systems.

Conclusion

Hiroshi Miyauchi's contributions to the field of encryption and key recovery are noteworthy. His innovative patents and collaborations have significantly impacted data security technologies.

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