RI

Ryuichi Ikematsu

NE Nec: 11 patents #1,181 of 14,502Top 9%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
NT NTT: 1 patents #2,911 of 4,871Top 60%
Overall (All Time): #456,965 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10193651 Optical network controller and optical network control method Hitoshi Takeshita, Shinsuke Fujisawa, Akio Tajima, Tomoyuki Hino 2019-01-29
9609401 Optical switch, optical transmission device, and optical switching method Hitoshi Takeshita, Akio Tajima 2017-03-28
8693338 Quality measuring system, quality measuring apparatus, quality measuring method, and program Hiroyuki Takagi, Kazuo Takagi, Zhenlong Cui 2014-04-08
7298694 Apparatus and method for GFP frame transfer Satoshi Kamiya, Motoo Nishihara 2007-11-20
6934295 Multi-mode scheduler, apparatus including multi-mode scheduler and multi-mode scheduling method 2005-08-23
6756898 Network termination device, alarm transfer system and alarm transferring method 2004-06-29
6731636 Scheduler using small sized shuffle pattern in ATM network 2004-05-04
6535479 Hitless switching system of ATM switch apparatus in which discard priority control is stopped 2003-03-18
6490282 Switching system for asynchronous transfer mode switch 2002-12-03
5440565 Test method and apparatus capable of testing reception of a desired cell through a virtual path Akihiro Miyamoto, Haruhiko Matsunaga, Hiromi Ueda 1995-08-08
5359600 High throughput supervisory system for ATM switching systems transporting STM-N signals Hiromi Ueda, Kenji Akutsu, Takatoshi Kurano, Yoshihiro Ashi, Yukio Nakano +2 more 1994-10-25