TO

Tomofumi Okubo

HC Hitachi Industrial Equipment Systems Co.: 6 patents #76 of 550Top 15%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
VE Verisign: 4 patents #67 of 311Top 25%
HS Hitachi Home And Life Solutions: 1 patents #13 of 36Top 40%
HC Hitachi Keiyo Engineering Co.: 1 patents #46 of 115Top 40%
📍 Herndon, VA: #70 of 878 inventorsTop 8%
🗺 Virginia: #2,452 of 34,511 inventorsTop 8%
Overall (All Time): #402,154 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11933291 Compressor, monitoring system, and method of monitoring compressor Norinaga Suzuki, Kiyomi Tashima, Akihiro Takanuki 2024-03-19
11190479 Detection of aberrant domain registration and resolution patterns Yannis Labrou, Eric Osterweil, Matthew Thomas 2021-11-30
10728273 Systems, devices, and methods for detecting and mitigating domain name registrations used for malicious behavior Eric Osterweil, Matthew Thomas 2020-07-28
10644638 Electric motor system Toshio Tomita 2020-05-05
10432584 Managing lame delegated domains within a managed DNS service Jeshmi Raman, Eric Osterweil, Arunabho Das, Terry Bernstein 2019-10-01
10326794 Anycast-based spoofed traffic detection and mitigation Ashkan Nikravesh, Matthew Thomas, Danny McPherson, Eric Osterweil, Gautam Gudavalli 2019-06-18
9136788 Motor controller, air compressor, air conditioner, controller of passenger conveyor and controller of conveyor Norinaga Suzuki, Hajime Uematsu, Hideharu Tanaka, Masakazu Hase, Yoshiyuki Taguchi 2015-09-15
7276876 Synchronous motor driving apparatus Daigo Kaneko, Yoshitaka Iwaji, Kiyoshi Sakamoto, Tsunehiro Endo 2007-10-02
7064514 Motor drive system for AC motors Yoshitaka Iwaji, Tsunehiro Endo, Kiyoshi Sakamoto 2006-06-20
7030589 Driving systems of AC motor Daigo Kaneko, Yoshitaka Iwaji, Kiyoshi Sakamoto, Tsunehiro Endo 2006-04-18
6954050 Control method and control device of permanent-magnet type synchronous motor Kazuaki Tobari, Tsunehiro Endo, Hidefumi Shirahama, Yoshiyuki Taguchi 2005-10-11
6169670 Inverter apparatus operatable over extended frequency range while suppressing output error Masahiro Hiragi, Mutsuo Tokashiki 2001-01-02