KY

Kei Yanagisawa

HE Hitachi Kokusai Electric: 7 patents #134 of 843Top 20%
NE Nec: 5 patents #2,830 of 14,502Top 20%
SS Sumitomo Wiring Systems: 4 patents #805 of 2,615Top 35%
Overall (All Time): #284,039 of 4,157,543Top 7%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
12431020 Boarding support system, boarding support method and program recording medium Kosei Kobayashi, Tetsuro Hasegawa, Hiroaki Aminaka, Kazuki OGATA 2025-09-30
12412474 Information provision server, information provision method, and recording medium storing program Kosei Kobayashi, Tetsuro Hasegawa, Takayuki Sasaki, Hiroaki Aminaka, Kazuki OGATA 2025-09-09
12394314 Parking management apparatus, parking management system, parking management method and non-transitory computer readable medium Kazuki OGATA, Tetsuro Hasegawa, Hiroaki Aminaka, Kosei Kobayashi 2025-08-19
12367762 Information provision apparatus, system, method and computer readable medium Hiroaki Aminaka, Kosei Kobayashi, Tetsuro Hasegawa, Kazuki OGATA 2025-07-22
12266193 Data collection apparatus, onboard apparatus, data collection method, data transmission method, and program recording medium Kazuki OGATA, Kosei Kobayashi, Shintaro CHIKU, Yoko Tanaka, Yuki Tsuji +1 more 2025-04-01
10374688 Wireless communication system and wireless communication method Masayuki Takekawa 2019-08-06
9781719 Multichannel wireless communication system, base station, and method for using channel Keigo Hasegawa, Keat Beng Toh, Masayuki Takekawa, Madoka Tanaka 2017-10-03
9743412 Wireless communication system Keigo Hasegawa, Masayuki Takekawa 2017-08-22
9713171 Selecting white space frequency based on preamble cycle length Masayuki Takekawa, Keigo Hasegawa 2017-07-18
9661644 Wireless communication system Masayuki Takekawa, Keigo Hasegawa 2017-05-23
9609523 Relaying operation between base stations using white spaces in wireless access system Masayuki Takekawa, Keigo Hasegawa, Keat Beng Toh 2017-03-28
9049726 Heterogeneous-systems coexistence method and wireless gateway apparatus Keigo Hasegawa, Masayuki Takekawa, Keat Beng Toh 2015-06-02
6860759 Connector and method of mounting a connector housing on a panel Hideto Nakamura 2005-03-01
6679720 Connector and a method for assembling a connector Hideto Nakamura 2004-01-20
6659785 Connector Hideto Nakamura 2003-12-09
6520786 Connector Hideto Nakamura 2003-02-18