KI

Kiyohiko Ishikawa

NK Nippon Hoso Kyokai: 3 patents #100 of 703Top 15%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
NE Nec: 1 patents #7,889 of 14,502Top 55%
NT NTT: 1 patents #2,911 of 4,871Top 60%
Overall (All Time): #1,530,835 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8726356 Authentication apparatus, authentication method, and authentication program implementing the method Yuko Konya, Masahito Kawamori, Tomokazu Yamada, Katsuhiko Kawazoe, Arisa Fujii +3 more 2014-05-13
8484470 Authentication system, authentication device and recording medium Hironori Sakakihara, Fumio Honda, Noboru Iwamatsu, Shunji Sunasaki, Arisa Fujii 2013-07-09
7937407 Access control method, access control system, metadata controlling device, and transmitting apparatus Jun Goto, Yusei Nishimoto, Akitsugu Baba, Haruyuki Nakamura, Tatsuya Kurioka 2011-05-03