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Top 20 Key Players companies in Cable tester
by Highest Patent Value in the Japan in 2021

The Cable tester top 20 is Discovery PatSnap’ annual ranking of the top 20 Highest Patent Value Cable tester Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
A cable tester is an electronic device used to verify the electrical connections in a signal cable or other wired assembly. Basic cable testers are continuity testers that verify the existence of a conductive path between ends of the cable, and verify the correct wiring of connectors on the cable. More advanced cable testers can measure the signal transmission properties of the cable such as its resistance, signal attenuation, noise and interference.
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Company Name
Region
Tech Topics
Total
1
Kyocera Corp.
Semiconductor,Electronics,Telecommunications,
...[+2]
Avg patent value: 1.32 M
2
TOKYO ROPE MFG. CO., LTD.
Wire rope,Industrial engineering,Metal fiber,
...[+2]
Avg patent value: 53,000
3
Hitachi Ltd.
Elevator,Electrical equipment,Electric motor,
...[+2]
Avg patent value: 0
4
Panasonic Holdings Corp.
Semiconductor,Industrial engineering,Electronics,
...[+2]
Avg patent value: 0
5
Fujitsu Ltd.
Cloud computing,Enterprise software,Information technology management,
...[+2]
Avg patent value: 0
6
NEC Corp.
Virtualization,Big data,Network security,
...[+2]
Avg patent value: 0
7
Nippon Telegraph & Telephone Corp.
Telecommunications,Cloud database,Data center,
...[+2]
Avg patent value: 0
8
Oki Electric Industry Co., Ltd.
Telecommunications,Call centre,Software,
...[+2]
Avg patent value: 0
9
Yokogawa Electric Corp.
Automation,Systems design,Programmable logic controller,
...[+2]
Avg patent value: 0
10
Musashi Seimitsu Industry Co., Ltd.
Balance shaft,Camshaft,Automotive engineering,
...[+2]
Avg patent value: 0
11
SWCC Showa Holdings Co., Ltd.
Electronics,Vibration control,System construction,
...[+2]
Avg patent value: 0
12
CHUDENKO CORP.
Construction engineering,Pylon,Firefighting,
...[+2]
Avg patent value: 0
13
Nippon Densetsu Kogyo Co., Ltd.
Construction engineering,Electric light,Telecommunications equipment,
...[+2]
Avg patent value: 0
14
Daido Signal Co., Ltd.
Railway signal,Electronics,Electrical equipment
Avg patent value: 0
15
Hitachi Cable Ltd.
Electronics,Metal,Optical fiber,
...[+2]
Avg patent value: 0
16
NEC Fielding Ltd.
System deployment,Information technology consulting,Personal computer,
...[+1]
Avg patent value: 0
17
Matsushita Electronics Corp.
Electronics,Computer hardware,DVD player,
...[+2]
Avg patent value: 0
18
Fujitsu Network Solutions Ltd.
Telecommunications
Avg patent value: 0
19
Japan Engineering Co., Ltd.
Semiconductor,Automation,Manufacturing engineering,
...[+2]
Avg patent value: 0
20
Jefcom Co. Ltd.
Avg patent value: 0
Page generation time: Jul 24 2025