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Top 50 Key Players companies in Debugger
by Most Patent Citation in the Japan in 2019

The Debugger top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Citation Debugger Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
A debugger or debugging tool is a computer program that is used to test and debug other programs (the "target" program). The code to be examined might alternatively be running on an instruction set simulator (ISS), a technique that allows great power in its ability to halt when specific conditions are encountered, but which will typically be somewhat slower than executing the code directly on the appropriate (or the same) processor. Some debuggers offer two modes of operation, full or partial simulation, to limit this impact.
#
Company Name
Region
Tech Topics
Total
1
TOSHIBA Corp.
Semiconductor,Computer hardware,Electronics,
...[+2]
patent citation: 436
2
Panasonic Holdings Corp.
Semiconductor,Industrial engineering,Electronics,
...[+2]
patent citation: 424
3
Matsushita Electronics Corp.
Electronics,Computer hardware,DVD player,
...[+2]
patent citation: 424
4
Fujitsu Ltd.
Cloud computing,Enterprise software,Information technology management,
...[+2]
patent citation: 301
5
NEC Corp.
Virtualization,Big data,Network security,
...[+2]
patent citation: 253
6
Renesas Electronics Corp.
Semiconductor,Microcontroller,Electronics,
...[+2]
patent citation: 252
7
Seiko Epson Corp.
Wearable technology,Projector,Electronics,
...[+2]
patent citation: 209
8
Hitachi Ltd.
Elevator,Electrical equipment,Electric motor,
...[+2]
patent citation: 208
9
Mitsubishi Electric Engineering Co., Ltd.
patent citation: 204
10
NEC Electronics Corp.
Electronics,Computer hardware,Semiconductor,
...[+2]
patent citation: 196
11
Ricoh Co., Ltd.
Digital media,Data visualization,Thermal paper,
...[+2]
patent citation: 118
12
Unisis Corp.
Medical equipment,Medicine,Biopsy
patent citation: 68
13
Mercury System
Software,Real-time computing
patent citation: 42
14
Hitachi Software Engineering Co., Ltd.
Software,Information technology consulting,Data processing,
...[+2]
patent citation: 41
15
Sharp Corp.
Computer hardware,Electronics,Telecommunications,
...[+2]
patent citation: 39
16
Trend Micro, Inc.
Software,Threat intelligence,Cloud computing security,
...[+2]
patent citation: 38
17
Fujifilm Business Innovation Corp.
Electronics,Inkjet printing,Vertical-cavity surface-emitting laser,
...[+2]
patent citation: 37
18
Renesas Technology Corp.
Semiconductor,Computer hardware,Electronics,
...[+2]
patent citation: 37
19
Oki Electric Industry Co., Ltd.
Telecommunications,Call centre,Software,
...[+2]
patent citation: 33
20
Sony Group Corp.
Computer hardware,Software,Music,
...[+2]
patent citation: 30
21
OMRON Corp.
Automation,Electronics,Health care,
...[+2]
patent citation: 28
22
Nippon Telegraph & Telephone Corp.
Telecommunications,Cloud database,Data center,
...[+2]
patent citation: 25
23
Sony Computer Entertainment, Inc.
Software,Game console,Computer hardware
patent citation: 21
24
Canon, Inc.
Computer hardware,Software,Computer vision,
...[+2]
patent citation: 20
25
FANUC Corp.
Robotics,Robot,Automation,
...[+2]
patent citation: 20
26
Yokogawa Electric Corp.
Automation,Systems design,Programmable logic controller,
...[+2]
patent citation: 19
27
Hitachi Information Technology Co., Ltd.
patent citation: 19
28
Pentel Co., Ltd.
Industrial robot,School supplies,Pencil (mathematics)
patent citation: 17
29
SANYO Electric Co., Ltd.
Semiconductor,Computer hardware,Software,
...[+2]
patent citation: 14
30
Sophia Systems Co., Ltd.
Computer hardware,Information technology management,Graphics processing unit,
...[+1]
patent citation: 13
31
Fuji Electronics Co., Ltd.
Semiconductor,Microcomputer,Electronic component,
...[+2]
patent citation: 12
32
Fuji Electric FA Components & SYstems Co., Ltd.
Semiconductor,Industrial engineering,Smart grid,
...[+2]
patent citation: 12
33
NEC Soft Ltd.
Information technology consulting,Systems design,Software development
patent citation: 10
34
Meidensha Corp.
Electrical equipment,Social infrastructure,Electronics,
...[+2]
patent citation: 9
35
Socionext, Inc.
Quality of experience,Semiconductor device fabrication,Semiconductor,
...[+2]
patent citation: 9
36
Toyo Communications Equipment Co., Ltd.
Broadcasting,Telecommunications
patent citation: 7
37
Mitsubishi Kogyo KK
patent citation: 6
38
NEC Software Hokuriku Ltd.
patent citation: 6
39
LAPIS Semiconductor Co., Ltd.
Semiconductor,Microcontroller,Information appliance,
...[+2]
patent citation: 5
40
Sumitomo Heavy Industries, Ltd.
Sewage treatment,Proton therapy,Cryocooler,
...[+2]
patent citation: 4
41
Alps Alpine Co., Ltd.
Electronic component,Electronics,Power transmission,
...[+2]
patent citation: 4
42
Hitachi Industrial Equipment Systems Co., Ltd.
Switchgear,Air compressor,Computer hardware,
...[+2]
patent citation: 4
43
Matsushita Graphic Communication Systems, Inc.
Graphic communication,Electronics
patent citation: 4
44
Kawasaki Steel Corp.
patent citation: 4
45
Nippon Chemi-Con Corp.
Capacitor,Electronic component,Sales management,
...[+2]
patent citation: 3
46
Espec Corp.
Climate system,Computer hardware,Electronics,
...[+2]
patent citation: 3
47
Fujitsu Devices, Inc.
patent citation: 3
48
IBIDEN Co., Ltd.
Electronics,Semiconductor,Asphalt,
...[+2]
patent citation: 2
49
Advantest Corp.
Semiconductor,Mechanical engineering,Product design,
...[+2]
patent citation: 2
50
IPFlex, Inc.
Semiconductor,Resistor,Microprocessor,
...[+2]
patent citation: 2
Page generation time: May 14 2025