Ryuichiro NAKAYAMA

Follow

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Authentication system, terminal, authentication method, and non-tra...
- Patent number 11,017,104
- Issue date May 25, 2021
- Ricoh Company, Ltd.
- Ryuichiro Nakayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information processing apparatus to determine a level of authentica...
- Patent number 10,897,555
- Issue date Jan 19, 2021
- Ricoh Company, Ltd.
- Ryuichiro Nakayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
AUTHENTICATION SYSTEM, TERMINAL, AUTHENTICATION METHOD, AND NON-TRA...
- Publication number 20200302070
- Publication date Sep 24, 2020
- Ryuichiro NAKAYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROCESSING APPARATUS, IMAGE FORMING SYSTEM, AND NONTRAN...
- Publication number 20200106921
- Publication date Apr 2, 2020
- Ryuichiro NAKAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE SYSTEM, COMMUNICATION METHOD AND RECORDING MEDIUM
- Publication number 20180270216
- Publication date Sep 20, 2018
- RICOH COMPANY, LTD.
- Ryuichiro NAKAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE