Top 100 Key Players companies in Iridium by Most Patent Citation in the Japan in 2021 – Discovery

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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 2021, 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.

1	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	patent citation: 2,317
2	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	patent citation: 968
3	Tanaka Holdings Co. Ltd.	Tokyo, Japan	Precious metal,Mining engineering,Natural resource management, ...[+2]	patent citation: 812
4	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 603
5	Pioneer Corp.	Fukushima, Japan	Navigation system,Laserdisc player,Electronic product, ...[+2]	patent citation: 556
6	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	patent citation: 520
7	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	patent citation: 462
8	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	patent citation: 388
9	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	patent citation: 362
10	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 335
11	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	patent citation: 322
12	NGK SPARK PLUG CO., LTD.	Aichi, Japan	Spark plug,Automotive engineering,Ceramic art, ...[+2]	patent citation: 321
13	N.E. Chemcat Corp.	Tokyo, Japan	Cisco Catalyst,Chemical engineering,Automotive catalyst, ...[+2]	patent citation: 310
14	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 301
15	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 301
16	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	patent citation: 301
17	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	patent citation: 299
18	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 276
19	Terumo Corp.	Tokyo, Japan	Health care,Blood management,Syringe, ...[+2]	patent citation: 273
20	ROHM Co., Ltd.	Kyoto, Japan	Semiconductor,Electronic component,Power module, ...[+2]	patent citation: 272
21	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	patent citation: 265
22	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 263
23	Takasago International Corp.	Tokyo, Japan	Fine chemical,Odor,SOAP, ...[+2]	patent citation: 260
24	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 253
25	Mitsubishi Kogyo KK	Japan		patent citation: 245
26	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	patent citation: 226
27	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 216
28	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	patent citation: 209
29	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	patent citation: 209
30	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 198
31	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	patent citation: 198
32	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 194
33	Chiyoda Corp.	Kanagawa, Japan	Construction engineering,Information technology,Environmental engineering, ...[+2]	patent citation: 192
34	Chiyoda Co., Ltd.	Tokyo, Japan	Casual	patent citation: 192
35	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 180
36	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 173
37	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 169
38	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	patent citation: 134
39	Furuya Metal Co., Ltd.	Tokyo, Japan	Semiconductor,Thin film,Membrane, ...[+2]	patent citation: 132
40	NKK Corp.	Tokyo, Japan	Natural resource management,Mining engineering	patent citation: 128
41	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	patent citation: 123
42	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 119
43	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	patent citation: 115
44	Bando Chemical Industries Ltd.	Hyogo, Japan	Elastomer,Belting,Natural rubber, ...[+2]	patent citation: 108
45	Cosmo Oil Co., Ltd.	Tokyo, Japan	Petrochemical,Petroleum,Syngas, ...[+2]	patent citation: 106
46	Yamaju Ceramics Co. Ltd.	Japan		patent citation: 98
47	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	patent citation: 91
48	Umicore Shokubai Japan Co. Ltd.	Aichi, Japan		patent citation: 90
49	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	patent citation: 84
50	Advanced Industrial Science & Technology	Tokyo, Japan	Graphene,Association (object-oriented programming)	patent citation: 83
51	OSAKA SODA CO., LTD.	Osaka, Japan	Epichlorohydrin,Chemical engineering,Diallyl phthalate, ...[+2]	patent citation: 81
52	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	patent citation: 78
53	Evonik Degussa Japan Co., Ltd.	Tokyo, Japan		patent citation: 78
54	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 71
55	Mazda Motor Corp.	Kanagawa, Japan	Automotive engineering,Reciprocating engine,Manual transmission, ...[+2]	patent citation: 70
56	JOLED, Inc.	Tokyo, Japan	Electroluminescent display,Cryptocurrency,Android (robot), ...[+2]	patent citation: 68
57	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	patent citation: 66
58	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	patent citation: 66
59	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 65
60	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 65
61	PMC KK	Tokyo, Japan	Web design	patent citation: 64
62	Petroleum Energy Center	Tokyo, Japan	Hydrogen,Petroleum industry	patent citation: 62
63	Yuasa Co., Ltd.	Hokkaido, Japan	Software development,Software,Accounting	patent citation: 60
64	Japan Storage Battery Co., Ltd.	Kyoto, Japan	Electronics	patent citation: 60
65	Oki Electric Industry Co., Ltd.	Tokyo, Japan	Telecommunications,Call centre,Software, ...[+2]	patent citation: 59
66	Sumation Co. Ltd.	Tokyo, Japan		patent citation: 57
67	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	patent citation: 56
68	Kanto Chemical Co., Inc.	Tokyo, Japan	Reagent,Chemical engineering,Electronics, ...[+2]	patent citation: 56
69	JX Nippon Mining & Metals Corp.	Tokyo, Japan	Non-ferrous metal,Cathode material,Mining engineering, ...[+2]	patent citation: 55
70	Nippon Kayaku Co., Ltd.	Tokyo, Japan	Biosimilar,Chemical engineering,Industrial engineering, ...[+2]	patent citation: 54
71	Sakai Chemical Industry Co., Ltd.	Osaka, Japan	Chemical engineering,Zinc,Titanium dioxide, ...[+2]	patent citation: 54
72	Cataler Corp.	Shizuoka, Japan	Cisco Catalyst,Automotive engineering	patent citation: 54
73	Ishifuku Metal Industry Co., Ltd.	Tokyo, Japan	Metal,Interior design,Bullion	patent citation: 52
74	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	patent citation: 50
75	Fujifilm Business Innovation Corp.	Chiba, Japan	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.	Tokushima, Japan	Laser diode,Semiconductor,LED lamp, ...[+2]	patent citation: 49
78	Wako Pure Chemical Industries Ltd	Osaka, Japan	Medicine,Diagnostic Reagent,Laboratory chemicals, ...[+2]	patent citation: 48
79	Texas Instruments Japan Ltd.	Tokyo, Japan	Semiconductor,Electronic component	patent citation: 48
80	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	patent citation: 47
81	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 42
82	Sanyo Chemical Industries, Ltd.	Kyoto, Japan	Chemical engineering,Polyurethane,Superabsorbent polymer, ...[+2]	patent citation: 42
83	Sumitomo Seika Chemicals Co., Ltd.	Osaka, Japan	Polymer,Chemical engineering,Sanitary napkin, ...[+2]	patent citation: 42
84	Nippon Micrometal Corp.	Saitama, Japan	Solder ball,Printed electronics,Metal	patent citation: 42
85	FLOSFIA, Inc.	Kyoto, Japan	Chemical vapor deposition,Big data,Semiconductor, ...[+1]	patent citation: 41
86	JX Nippon Oil & Energy Marine Service Corp.	Japan	Lubricant,Grease,p-Xylene, ...[+2]	patent citation: 41
87	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	patent citation: 40
88	Mitsubishi Materials Techno Corp.	Japan		patent citation: 40
89	Electroplating Engineers of Japan Ltd.	Ehime, Japan	Precious metal,Engraving,Heat treating, ...[+2]	patent citation: 39
90	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	patent citation: 36
91	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 34
92	Hino Motors, Ltd.	Tokyo, Japan	Truck,Public transport,Gasoline, ...[+2]	patent citation: 34
93	Tonen General Sekiyu KK	Chiba, Japan	Petroleum product,Petrochemical,Liquefied natural gas, ...[+2]	patent citation: 34
94	Suga Test Instruments Co. Ltd.	Tokyo, Japan	Computer hardware,Electronics	patent citation: 34
95	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	patent citation: 32
96	Hodogaya Chemical Co., Ltd.	Tokyo, Japan	Pigment,Chemical engineering,Functional polymers, ...[+2]	patent citation: 32
97	Konica Minolta Advanced Layers, Inc.	Japan		patent citation: 32
98	Nippon Sheet Glass Co., Ltd.	Tokyo, Japan	Glazing,Flat glass,Timing belt, ...[+2]	patent citation: 31
99	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	patent citation: 31
100	Sud-Chemie Catalysts Japan, Inc.	Japan		patent citation: 30