Doi; Kazuaki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Doi; Kazuaki.The latest application filed is for "application-key management system, application-key management device, application-key management method, and computer program product".

Company Profile

2.17.22

Doi; Kazuaki - Kawasaki JP
DOI; Kazuaki - Kawasaki Kanagawa JP
DOI; Kazuaki - Kawasaki-shi JP
DOI; Kazuaki - Yokohama-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Quantum communication device, quantum communication system, and quantum communication method Grant 11,265,157 - Doi , et al. March 1, 2	2022-03-01
Application-key Management System, Application-key Management Device, Application-key Management Method, And Computer Program Product App 20210409202 - DOI; Kazuaki ; et al.	2021-12-30
Quantum Cryptographic Device, Quantum Cryptographic Communication Fee Calulation System, And Quantum Cryptographic Communication Fee Calculation Method App 20210328784 - DOI; Kazuaki ; et al.	2021-10-21
Key generation device, key generation method, and computer program product Grant 11,115,198 - Takahashi , et al. September 7, 2	2021-09-07
Key Generation Device, Key Generation Method, And Computer Program Product App 20200092089 - TAKAHASHI; Ririka ; et al.	2020-03-19
Quantum key distribution device, quantum key distribution system, and quantum key distribution method Grant 10,348,492 - Tanizawa , et al. July 9, 2	2019-07-09
Decoding apparatus, decoding method, and computer program product Grant 10,256,838 - Doi	2019-04-09
Quantum communication device, quantum communication system, and quantum communication method App 20180359086 - Dixon; Alex ; et al.	2018-12-13
Quantum Communication Device, Quantum Communication System, And Quantum Communication Method App 20180262328 - Doi; Kazuaki ; et al.	2018-09-13
Quantum communication device, quantum communication method, and computer program product Grant 9,652,620 - Doi , et al. May 16, 2	2017-05-16
Quantum communication device, quantum communication method, and computer program product Grant 9,569,731 - Doi , et al. February 14, 2	2017-02-14
Decoding Apparatus, Decoding Method, And Computer Program Product App 20160329909 - DOI; Kazuaki	2016-11-10
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method App 20160142203 - TANIZAWA; Yoshimichi ; et al.	2016-05-19
Parity check matrix creation method, encoding apparatus, and recording/reproduction apparatus Grant 9,240,805 - Doi , et al. January 19, 2	2016-01-19
Parity Check Matrix Creation Method, Encoding Apparatus, And Recording/reproduction Apparatus App 20150381210 - DOI; Kazuaki ; et al.	2015-12-31
Signal processing apparatus capable of suppressing non-linear noise component during reading optical recording medium Grant 9,117,485 - Ogawa , et al. August 25, 2	2015-08-25
Information recording medium, information reproducing apparatus, management information reproducing method, information recording/reproducing apparatus and identification information reproducing/recording method Grant 9,087,523 - Ogawa , et al. July 21, 2	2015-07-21
Quantum Communication Device, Quantum Communication Method, And Computer Program Product App 20150193306 - DOI; Kazuaki ; et al.	2015-07-09
Quantum Communication Device, Quantum Communication Method, And Computer Program Product App 20150195087 - DOI; Kazuaki ; et al.	2015-07-09
Writable information recording and reproducing apparatus Grant 9,064,506 - Okano , et al. June 23, 2	2015-06-23
Signal Processing Apparatus And Information Reproduction Apparatus App 20150003225 - OGAWA; Akihito ; et al.	2015-01-01
Parity Check Matrix Creation Method, Encoding Apparatus, And Recording/reproduction Apparatus App 20150006989 - DOI; Kazuaki ; et al.	2015-01-01
Information Recording Medium, Information Reproducing Apparatus, Management Information Reproducing Method, Information Recording/reproducing Apparatus And Identification Information Reproducing/recording Method App 20140185420 - OGAWA; Akihito ; et al.	2014-07-03
Pickup head, information recording method and reproducing method Grant 8,614,936 - Watabe , et al. December 24, 2	2013-12-24
Optical pickup and optical disk apparatus Grant 8,582,413 - Tanioka , et al. November 12, 2	2013-11-12
Focus servo control device, and information recording/reproducing device using the same Grant 8,553,508 - Usui , et al. October 8, 2	2013-10-08
Information Recording Medium, Information Reproduction Apparatus And Information Recording Apparatus App 20130094343 - OGAWA; Akihito ; et al.	2013-04-18
Optical Pickup And Optical Disk Apparatus App 20130094341 - TANIOKA; Chikara ; et al.	2013-04-18
Information Recording And Reproducing Apparatus App 20130021892 - Okano; Hideaki ; et al.	2013-01-24
Focus Servo Control Device, And Information Recording/reproducing Device Using The Same App 20120236696 - Usui; Takashi ; et al.	2012-09-20
Pickup Head, Information Recording Method And Reproducing Method App 20120224462 - Watabe; Kazuo ; et al.	2012-09-06
Signal Processing Device And Signal Processing Method That Decode Encoded Information App 20090319873 - DOI; Kazuaki ; et al.	2009-12-24

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