Inventor

Katsuyuki Takashima

Inventor

Tokyo, JP

Overview

2012–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 24 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 communication61%

G09CCiphering or deciphering apparatus for cryptographic or other purposes involving the need for secrecy26%

G06FElectric digital data processing8%

H01GCapacitors3%

Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids3%

PatentTitleYear

11,011,314Multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor2021 10,516,534Cryptographic system and key generation apparatus2019 9,979,536Cryptographic system, encryption device, re-encryption key generation device, re-encryption device, and cryptographic program2018 9,755,823'Cryptographic system, cryptographic method, and computer readable medium'2017 9,722,783'Cryptographic system'2017 9,640,090'Cryptographic system and computer readable medium'2017 9,413,531'Cryptographic system, cryptographic method, cryptographic program, and decryption device'2016 9,407,438'Cryptographic system, cryptographic method, and cryptographic program'2016 9,385,867'Cryptographic processing system, key generation device, encryption device, decryption device, key delegation device, cryptographic processing method, and cryptographic processing program'2016 9,344,276'Cryptographic system, re-encryption key generation device, re-encryption device, cryptographic method, and cryptographic program'2016 9,237,013'Encrypted data management device, encrypted data management method, and encrypted data management program'2016 9,203,622'Cryptographic processing system, cryptographic processing method, cryptograhpic processing program, and key generation device'2015 9,183,411'Cryptographic processing system, key generation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program utilizing attribute information for generation of a key for decryption or encryption'2015 9,106,408'Signature processing system, key generation device, signature device, verification device, signature processing method, and signature processing program'2015 8,958,552'Data processing device'2015 8,938,623'Cryptographic processing system, key generation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program'2015 8,929,542'Cryptographic processing system, key generation device, key delegation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program'2015 8,913,742'Cryptographic processing system, key generation device, encryption device, decryption device, signature processing system, signature device, and verification device'2014 8,577,030'Cryptographic processing system, key generation device, key delegation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program'2013 8,559,638'Cryptographic processing system'2013 8,458,479'Verification apparatus'2013 8,401,179'Encryption parameter setting apparatus, key generation apparatus, cryptographic system, program, encryption parameter setting method, and key generation method'2013 8,290,146'Ciphertext generating apparatus, cryptographic communication system, and group parameter generating apparatus'2012 8,111,826'Apparatus for generating elliptic curve cryptographic parameter, apparatus for processing elliptic curve cryptograph, program for generating elliptic curve cryptographic parameter, and program for processing elliptic cyptograph'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2019Patents assigned to MITSUBISHI ELECTRIC CORP (23)· patent assignee history

2012–2016Patents assigned to TAKASHIMA KATSUYUKI (17)· patent assignee history

2012–2019Based in Tokyo, JP· patent location history

2013–2017Patents assigned to NIPPON TELEGRAPH & TELEPHONE (12)· patent assignee history

2013–2016Patents assigned to OKAMOTO TATSUAKI (10)· patent assignee history

2015–2016Patents assigned to MATSUDA NORI (2)· patent assignee history

2016Based in Chiyoda-ku, JP· patent location history

2021Based in Takasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI ELECTRIC CORP	23	2012–2019
TAKASHIMA KATSUYUKIself	17	2012–2016
NIPPON TELEGRAPH & TELEPHONE	12	2013–2017
OKAMOTO TATSUAKI	10	2013–2016
MATSUDA NORI	2	2015–2016

Locations

Location	Patents	Span
Tokyo, JP	22	2012–2019
Takasaki, JP	1	2021
Chiyoda-ku, JP	1	2016