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Top 100 Key Players companies in Iridium
by Most Patent Citation in the Japan in 2020

The Iridium top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Iridium Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2020, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is the second-densest metal (after osmium) with a density of 22.56 g/cm³ as defined by experimental X-ray crystallography. At room temperature and standard atmospheric pressure, iridium has a calculated density 0.04 g/cm³ higher than osmium measured the same way. It is the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Although only certain molten salts and halogens are corrosive to solid iridium, finely divided iridium dust is much more reactive and can be flammable.
#
Company Name
Region
Tech Topics
Total
1
Semiconductor Energy Laboratory Co., Ltd.
Semiconductor,Transistor,Semiconductor device,
...[+2]
patent citation: 2,317
2
FUJIFILM Corp.
Photography,Medical imaging,Computer hardware,
...[+2]
patent citation: 968
3
Tanaka Holdings Co. Ltd.
Precious metal,Mining engineering,Natural resource management,
...[+2]
patent citation: 812
4
Canon, Inc.
Computer hardware,Software,Computer vision,
...[+2]
patent citation: 603
5
Pioneer Corp.
Navigation system,Laserdisc player,Electronic product,
...[+2]
patent citation: 556
6
Idemitsu Kosan Co., Ltd.
Petrochemical,Lubricant,Petroleum,
...[+2]
patent citation: 520
7
Nippon Shokubai Co., Ltd.
Polymer,Acrylic acid,Chemical engineering,
...[+2]
patent citation: 462
8
Sumitomo Chemical Co., Ltd.
Petrochemical,Agriculture,Pesticide,
...[+2]
patent citation: 388
9
JSR Corp.
Synthetic rubber,Natural rubber,Elastomer,
...[+2]
patent citation: 362
10
TOSHIBA Corp.
Semiconductor,Computer hardware,Electronics,
...[+2]
patent citation: 335
11
Showa Denko K.K.
Graphite,Materials science,Nanomaterials,
...[+2]
patent citation: 322
12
NGK SPARK PLUG CO., LTD.
Spark plug,Automotive engineering,Ceramic art,
...[+2]
patent citation: 321
13
N.E. Chemcat Corp.
Cisco Catalyst,Chemical engineering,Automotive catalyst,
...[+2]
patent citation: 310
14
Panasonic Holdings Corp.
Semiconductor,Industrial engineering,Electronics,
...[+2]
patent citation: 301
15
Matsushita Electronics Corp.
Electronics,Computer hardware,DVD player,
...[+2]
patent citation: 301
16
Nihon Denso KK
Manufacturing engineering,Mechanical engineering
patent citation: 301
17
Nikon Corp.
Microscope,Photography,Motion capture,
...[+2]
patent citation: 299
18
Toyota Motor Corp.
Sport utility vehicle,Mobile device,Public transport,
...[+2]
patent citation: 276
19
Terumo Corp.
Health care,Blood management,Syringe,
...[+2]
patent citation: 273
20
ROHM Co., Ltd.
Semiconductor,Electronic component,Power module,
...[+2]
patent citation: 272
21
Osaka Gas Co., Ltd.
Natural gas,Activated carbon,Petroleum industry,
...[+2]
patent citation: 265
22
Seiko Epson Corp.
Wearable technology,Projector,Electronics,
...[+2]
patent citation: 263
23
Takasago International Corp.
Fine chemical,Odor,SOAP,
...[+2]
patent citation: 260
24
NEC Corp.
Virtualization,Big data,Network security,
...[+2]
patent citation: 253
25
Mitsubishi Kogyo KK
patent citation: 245
26
Sumitomo Metal Mining Co., Ltd.
Nickel,Mining engineering,Natural resource management,
...[+2]
patent citation: 226
27
Sharp Corp.
Computer hardware,Electronics,Telecommunications,
...[+2]
patent citation: 216
28
Nissan Motor Co., Ltd.
Truck,Public transport,Automotive engineering,
...[+2]
patent citation: 209
29
TDK Corp.
Electronic component,Ceramic capacitor,Electronics,
...[+2]
patent citation: 209
30
DENSO Corp.
Automotive engineering,Industrial robot,Programmable logic controller,
...[+2]
patent citation: 198
31
Konica Minolta, Inc.
Medical imaging,Attractiveness,Product group,
...[+2]
patent citation: 198
32
Mitsubishi Electric Engineering Co., Ltd.
patent citation: 194
33
Chiyoda Corp.
Construction engineering,Information technology,Environmental engineering,
...[+2]
patent citation: 192
34
Chiyoda Co., Ltd.
Casual
patent citation: 192
35
Mitsui Chemicals, Inc.
Petrochemical,Chemical engineering,Polypropylene,
...[+2]
patent citation: 180
36
SANYO Electric Co., Ltd.
Semiconductor,Computer hardware,Software,
...[+2]
patent citation: 173
37
Asahi Kasei Corp.
Chemical engineering,Petrochemical,Fertilizer,
...[+2]
patent citation: 169
38
Fujitsu Ltd.
Cloud computing,Enterprise software,Information technology management,
...[+2]
patent citation: 134
39
Furuya Metal Co., Ltd.
Semiconductor,Thin film,Membrane,
...[+2]
patent citation: 132
40
NKK Corp.
Natural resource management,Mining engineering
patent citation: 128
41
Shin-Etsu Chemical Co., Ltd.
Silicone,Semiconductor,Chemical engineering,
...[+2]
patent citation: 123
42
Hitachi Ltd.
Elevator,Electrical equipment,Electric motor,
...[+2]
patent citation: 119
43
Honda Motor Co., Ltd.
Automotive engineering,Manufacturing engineering,Sport utility vehicle,
...[+2]
patent citation: 115
44
Bando Chemical Industries Ltd.
Elastomer,Belting,Natural rubber,
...[+2]
patent citation: 108
45
Cosmo Oil Co., Ltd.
Petrochemical,Petroleum,Syngas,
...[+2]
patent citation: 106
46
Yamaju Ceramics Co. Ltd.
patent citation: 98
47
Mitsubishi Paper Mills Ltd.
Paperboard,Thermal paper,3D printing,
...[+2]
patent citation: 91
48
Umicore Shokubai Japan Co. Ltd.
patent citation: 90
49
Kaneka Corp.
Synthetic rubber,Chemical engineering,Polyvinyl chloride,
...[+2]
patent citation: 84
50
Advanced Industrial Science & Technology
Graphene,Association (object-oriented programming)
patent citation: 83
51
OSAKA SODA CO., LTD.
Epichlorohydrin,Chemical engineering,Diallyl phthalate,
...[+2]
patent citation: 81
52
Toyota Central R&D Labs, Inc.
Semiconductor,Power semiconductor device,System on a chip,
...[+2]
patent citation: 78
53
Evonik Degussa Japan Co., Ltd.
patent citation: 78
54
Kobe Steel, Ltd.
Welding,Electronics,Mining engineering,
...[+2]
patent citation: 71
55
Mazda Motor Corp.
Automotive engineering,Reciprocating engine,Manual transmission,
...[+2]
patent citation: 70
56
JOLED, Inc.
Electroluminescent display,Cryptocurrency,Android (robot),
...[+2]
patent citation: 68
57
Nitto Denko Corp.
Semiconductor,Product design,Adhesive,
...[+2]
patent citation: 66
58
Kuraray Co., Ltd.
Synthetic rubber,Isoprene,Vinyl acetate,
...[+2]
patent citation: 66
59
AGC
Fluorine,Glazing,Chemical engineering,
...[+2]
patent citation: 65
60
Asahi Fiber Glass Co., Ltd.
Glass wool,Thermal insulation,Fiber,
...[+2]
patent citation: 65
61
PMC KK
Web design
patent citation: 64
62
Petroleum Energy Center
Hydrogen,Petroleum industry
patent citation: 62
63
Yuasa Co., Ltd.
Software development,Software,Accounting
patent citation: 60
64
Japan Storage Battery Co., Ltd.
Electronics
patent citation: 60
65
Oki Electric Industry Co., Ltd.
Telecommunications,Call centre,Software,
...[+2]
patent citation: 59
66
Sumation Co. Ltd.
patent citation: 57
67
NGK Insulators, Ltd.
Beryllium copper,Industrial engineering,Pottery,
...[+2]
patent citation: 56
68
Kanto Chemical Co., Inc.
Reagent,Chemical engineering,Electronics,
...[+2]
patent citation: 56
69
JX Nippon Mining & Metals Corp.
Non-ferrous metal,Cathode material,Mining engineering,
...[+2]
patent citation: 55
70
Nippon Kayaku Co., Ltd.
Biosimilar,Chemical engineering,Industrial engineering,
...[+2]
patent citation: 54
71
Sakai Chemical Industry Co., Ltd.
Chemical engineering,Zinc,Titanium dioxide,
...[+2]
patent citation: 54
72
Cataler Corp.
Cisco Catalyst,Automotive engineering
patent citation: 54
73
Ishifuku Metal Industry Co., Ltd.
Metal,Interior design,Bullion
patent citation: 52
74
DIC Corp.
Pigment,Chemical engineering,Synthetic resin,
...[+2]
patent citation: 50
75
Fujifilm Business Innovation Corp.
Electronics,Inkjet printing,Vertical-cavity surface-emitting laser,
...[+2]
patent citation: 50
76
DIC Corporation
Pigment,Polymer,Epoxy,
...[+2]
patent citation: 50
77
Nichia Corp.
Laser diode,Semiconductor,LED lamp,
...[+2]
patent citation: 49
78
Wako Pure Chemical Industries Ltd
Medicine,Diagnostic Reagent,Laboratory chemicals,
...[+2]
patent citation: 48
79
Texas Instruments Japan Ltd.
Semiconductor,Electronic component
patent citation: 48
80
Tosoh Corp.
Petrochemical,Chemical engineering,Immunoprotein,
...[+2]
patent citation: 47
81
Sony Group Corp.
Computer hardware,Software,Music,
...[+2]
patent citation: 42
82
Sanyo Chemical Industries, Ltd.
Chemical engineering,Polyurethane,Superabsorbent polymer,
...[+2]
patent citation: 42
83
Sumitomo Seika Chemicals Co., Ltd.
Polymer,Chemical engineering,Sanitary napkin,
...[+2]
patent citation: 42
84
Nippon Micrometal Corp.
Solder ball,Printed electronics,Metal
patent citation: 42
85
FLOSFIA, Inc.
Chemical vapor deposition,Big data,Semiconductor,
...[+1]
patent citation: 41
86
JX Nippon Oil & Energy Marine Service Corp.
Lubricant,Grease,p-Xylene,
...[+2]
patent citation: 41
87
Mitsubishi Materials Corp.
Cement,Alloy,Polycrystalline silicon,
...[+2]
patent citation: 40
88
Mitsubishi Materials Techno Corp.
patent citation: 40
89
Electroplating Engineers of Japan Ltd.
Precious metal,Engraving,Heat treating,
...[+2]
patent citation: 39
90
UBE Corp.
Synthetic rubber,Chemical engineering,Coal mining,
...[+2]
patent citation: 36
91
Toray Industries, Inc.
Fiber,Textile,Textile (markup language),
...[+2]
patent citation: 34
92
Hino Motors, Ltd.
Truck,Public transport,Gasoline,
...[+2]
patent citation: 34
93
Tonen General Sekiyu KK
Petroleum product,Petrochemical,Liquefied natural gas,
...[+2]
patent citation: 34
94
Suga Test Instruments Co. Ltd.
Computer hardware,Electronics
patent citation: 34
95
Kyocera Corp.
Semiconductor,Electronics,Telecommunications,
...[+2]
patent citation: 32
96
Hodogaya Chemical Co., Ltd.
Pigment,Chemical engineering,Functional polymers,
...[+2]
patent citation: 32
97
Konica Minolta Advanced Layers, Inc.
patent citation: 32
98
Nippon Sheet Glass Co., Ltd.
Glazing,Flat glass,Timing belt,
...[+2]
patent citation: 31
99
Mitsubishi Gas Chemical Co., Inc.
Petroleum industry,Petrochemical,Engineering plastic,
...[+2]
patent citation: 31
100
Sud-Chemie Catalysts Japan, Inc.
patent citation: 30
Page generation time: Jun 12 2025