KK

Kei Kato

SC Sumitomo Osaka Cement Co.: 9 patents #32 of 327Top 10%
OC Oki Electric Industry Co.: 7 patents #247 of 2,807Top 9%
Ricoh Company: 3 patents #4,826 of 9,818Top 50%
Dai Nippon Printing Co.: 2 patents #976 of 2,222Top 45%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
MI Mizuno: 2 patents #130 of 221Top 60%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
RE Renesas Electronics: 1 patents #2,739 of 4,529Top 65%
NA Nabtesco: 1 patents #159 of 320Top 50%
Overall (All Time): #135,058 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12392968 Optical device, optical modulation device and optical transmission device Hideki Ichimei 2025-08-19
12345933 Optical device and optical transmission apparatus using same Hideki Ichimei 2025-07-01
12338950 Gas tank and method for manufacturing the same Yuki KAI 2025-06-24
12321047 Optical modulator and optical transmission device using same Hideki Ichimei 2025-06-03
11586061 Optical waveguide device, and optical modulation device and optical transmission device using same Hideki Ichimei, Norikazu Miyazaki 2023-02-21
11402594 Optical waveguide device, and optical modulation device and optical transmission device using same Hideki Ichimei, Norikazu Miyazaki 2022-08-02
11047366 Driving device, driving device unit and wind turbine Osamu Nohara, Shigeru Hosoda, Haruna Osako 2021-06-29
10845539 Optical modulator Norikazu Miyazaki 2020-11-24
10761788 Information processing apparatus, system, and control method 2020-09-01
10507999 Manufacturing method of tank and tank manufacturing apparatus 2019-12-17
10481464 Optical modulator with wirings of equal length Toshio Kataoka 2019-11-19
10401658 Optical modulator and optical switch Toshio Kataoka, Junichiro Ichikawa 2019-09-03
10298693 Virtual-machine dynamic allocation system and server 2019-05-21
10247966 Optical modulator module Norikazu Miyazaki, Ryo Shimizu 2019-04-02
9213864 Data processing apparatus and validity verification method 2015-12-15
8751817 Data processing apparatus and validity verification method 2014-06-10
8130446 Optical diffusing sheet, optical deflecting sheet, and transmission type screen Daijiro Kodama, Tsuyoshi Kashiwagi 2012-03-06
7908666 Content playing system for reliably determining an authentication of a playing terminal Koichi Chida, Yuhiko Fujiwara 2011-03-15
7891017 Ball catching tool for baseball or softball Michiharu Tsukamoto, Daisuke Kogawa, Norifumi Ito 2011-02-22
7885003 Optical diffusing sheet, optical deflecting sheet, and transmission type screen Daijiro Kodama, Tsuyoshi Kashiwagi 2011-02-08
7869250 ROM semiconductor integrated circuit device having a plurality of common source lines 2011-01-11
D629570 Batting glove Takayuki Kanemitsu, Tamotsu Doi, Chad Robertson, Junko Harada, Kazuhiro Kume 2010-12-21
7660262 Network management method and communications network system Cai Wang 2010-02-09
7167450 Network management method and communications network system Cai Wang 2007-01-23
7110362 Network management system 2006-09-19