Top 100 Key Players companies in NOx by Most Patent Filings in the Japan in 2019 – Discovery

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The NOx top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings NOx 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.

1	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 2,689
2	Mitsubishi Kogyo KK	Japan		Patent: 903
3	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	Patent: 694
4	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 666
5	Isuzu Motors Ltd.	Tokyo, Japan	Truck,Public transport,Diesel engine, ...[+2]	Patent: 599
6	Mazda Motor Corp.	Kanagawa, Japan	Automotive engineering,Reciprocating engine,Manual transmission, ...[+2]	Patent: 490
7	Hino Motors, Ltd.	Tokyo, Japan	Truck,Public transport,Gasoline, ...[+2]	Patent: 409
8	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	Patent: 387
9	Mitsubishi Motors Corp.	Tokyo, Japan	Sport utility vehicle,Automotive engineering,Electric vehicle, ...[+2]	Patent: 318
10	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Patent: 284
11	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Patent: 270
12	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 270
13	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	Patent: 238
14	Tokyo Gas Co., Ltd.	Tokyo, Japan	Natural gas,Hydrogen chloride,Petroleum industry, ...[+2]	Patent: 206
15	Hitachi Zosen Corp.	Osaka, Japan	Mechanical engineering,Waste-to-energy,Environmental protection, ...[+2]	Patent: 198
16	Mitsubishi Power Ltd.	Kanagawa, Japan	Turbine,Control system,Renewable energy, ...[+2]	Patent: 184
17	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 180
18	Kawasaki Heavy Industries Ltd.	Kyoto, Japan	Turbine,Mechanical engineering,Manufacturing engineering, ...[+2]	Patent: 179
19	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	Patent: 174
20	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	Patent: 171
21	UD Trucks Corp.	Saitama, Japan	Truck,Automotive engineering	Patent: 159
22	Ebara Corp.	Tokyo, Japan	Vacuum pump,Manufacturing engineering,Turbine, ...[+2]	Patent: 155
23	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	Patent: 152
24	Mitsubishi Fuso Truck & Bus Corp.	Kanagawa, Japan	Truck,Automotive engineering,Chassis	Patent: 145
25	IHI Power Systems Co., Ltd.	Tokyo, Japan	Turbine,Gas engine,Manufacturing engineering, ...[+2]	Patent: 145
26	N.E. Chemcat Corp.	Tokyo, Japan	Cisco Catalyst,Chemical engineering,Automotive catalyst, ...[+2]	Patent: 141
27	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	Patent: 125
28	Yanmar Co., Ltd.	Osaka, Japan	Diesel engine,Electronics,Tractor, ...[+2]	Patent: 109
29	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 104
30	NGK SPARK PLUG CO., LTD.	Aichi, Japan	Spark plug,Automotive engineering,Ceramic art, ...[+2]	Patent: 98
31	Miura Co., Ltd.	Tokyo, Japan	Boiler (power generation),Water-tube boiler,Refrigeration, ...[+2]	Patent: 98
32	NKK Corp.	Tokyo, Japan	Natural resource management,Mining engineering	Patent: 91
33	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Patent: 90
34	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Patent: 85
35	Mitsubishi Hitachi Power Systems	Kanagawa, Japan	Control system	Patent: 83
36	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	Patent: 80
37	Petroleum Energy Center	Tokyo, Japan	Hydrogen,Petroleum industry	Patent: 80
38	IHI Corp.	Tokyo, Japan	Turbocharger,Manufacturing engineering,Turbine, ...[+2]	Patent: 77
39	Sakai Chemical Industry Co., Ltd.	Osaka, Japan	Chemical engineering,Zinc,Titanium dioxide, ...[+2]	Patent: 69
40	Noritsu Koki Co., Ltd.	Chiba, Japan	Hydroponics,Drug discovery,Ultracentrifuge, ...[+2]	Patent: 68
41	Mitsui E&S Holdings Co., Ltd.	Tokyo, Japan	Public transport,Hydrogen compressor,Reciprocating compressor, ...[+2]	Patent: 66
42	Kubota Corp.	Osaka, Japan	Tractor,Manufacturing engineering,Combine harvester, ...[+2]	Patent: 65
43	Cataler Corp.	Shizuoka, Japan	Cisco Catalyst,Automotive engineering	Patent: 64
44	Komatsu Ltd.	Tokyo, Japan	Environmental engineering,Construction engineering,Heavy equipment, ...[+2]	Patent: 63
45	TAKUMA CO., LTD.	Hyogo, Japan	Manufacturing engineering,Agricultural waste,Boiler (power generation), ...[+2]	Patent: 60
46	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 60
47	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	Patent: 57
48	Nippon Furnace Co. Ltd.	Kanagawa, Japan	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	Patent: 57
49	Daihatsu Motor Co., Ltd.	Osaka, Japan	Automotive engineering,Proton exchange membrane fuel cell,Electric bus, ...[+2]	Patent: 56
50	Toyota Industries Corp.	Aichi, Japan	Textile,Software,Automotive engineering, ...[+2]	Patent: 55
51	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 50
52	Sumitomo Heavy Industries, Ltd.	Tokyo, Japan	Sewage treatment,Proton therapy,Cryocooler, ...[+2]	Patent: 49
53	Kawasaki Steel Corp.	Japan		Patent: 49
54	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	Patent: 48
55	Subaru Corp.	Tokyo, Japan	Automotive engineering,Public transport,Aerospace, ...[+2]	Patent: 46
56	Meidensha Corp.	Tokyo, Japan	Electrical equipment,Social infrastructure,Electronics, ...[+2]	Patent: 46
57	IBIDEN Co., Ltd.	Gifu, Japan	Electronics,Semiconductor,Asphalt, ...[+2]	Patent: 46
58	Chugai Co., Ltd.	Aichi, Japan	Automotive engineering,Electronic component,Textile	Patent: 46
59	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	Patent: 43
60	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Patent: 41
61	Umicore Shokubai Japan Co. Ltd.	Aichi, Japan		Patent: 40
62	Yamaha Motor Co., Ltd.	Shizuoka, Japan	Robotics,Industrial robot,Automotive engineering, ...[+2]	Patent: 38
63	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 38
64	Nihon Cement Co. Ltd.	Japan	Cement,Materials science,Construction engineering, ...[+2]	Patent: 37
65	Toyo Kogyo Co. Ltd.	Japan	Metal fabrication,Automation,Manufacturing engineering, ...[+2]	Patent: 36
66	Cosmo Oil Co., Ltd.	Tokyo, Japan	Petrochemical,Petroleum,Syngas, ...[+2]	Patent: 34
67	Tokyo Electric Power Co. Holdings, Inc.	Tokyo, Japan	Power grid,Association (object-oriented programming),Electricity, ...[+2]	Patent: 33
68	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 32
69	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 32
70	Yanmar Power Technology Co., Ltd.	Japan		Patent: 32
71	The Chugoku Electric Power Co., Inc.	Hiroshima, Japan	Renewable energy,Petroleum industry,Electric power transmission, ...[+2]	Patent: 29
72	JFE Engineering Corp.	Tokyo, Japan	Environmental protection,Renewable energy,Health care, ...[+2]	Patent: 29
73	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 28
74	Daido Steel Co., Ltd.	Aichi, Japan	Magnet,Power transmission,Ferroalloy, ...[+2]	Patent: 28
75	Suzuki Co., Ltd.	Nagano, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Patent: 28
76	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Patent: 27
77	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	Patent: 26
78	TOHO GAS Co., Ltd.	Aichi, Japan	LNG storage tank,Sales management,Natural gas, ...[+2]	Patent: 26
79	Chiyoda Corp.	Kanagawa, Japan	Construction engineering,Information technology,Environmental engineering, ...[+2]	Patent: 26
80	Chiyoda Co., Ltd.	Tokyo, Japan	Casual	Patent: 26
81	Mitsubishi Materials Techno Corp.	Japan		Patent: 26
82	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 25
83	TOTO Ltd.	Fukuoka, Japan	Bathtub,Cistern,Sink (computing), ...[+2]	Patent: 25
84	Tokyo Roki Co., Ltd.	Kanagawa, Japan	Fuel filter,Filter (aquarium),Gasoline, ...[+2]	Patent: 25
85	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 24
86	The Kansai Electric Power Co., Inc.	Osaka, Japan	Telecommunications,Energy management,Electric utility, ...[+2]	Patent: 24
87	Miura Institute of Research & Development Co., Ltd.	Japan		Patent: 24
88	Hitachi Construction Machinery Tierra Co., Ltd.	Osaka, Japan	Agricultural machinery,Manufacturing engineering,Mechanical engineering	Patent: 23
89	Toyo Tire Corp.	Hyogo, Japan	Automotive engineering,Radial tire,Rubber material, ...[+2]	Patent: 22
90	Kureha Corp.	Hokkaido, Japan	Chemical engineering,Polyvinylidene fluoride,Wallpaper, ...[+2]	Patent: 22
91	Tonen General Sekiyu KK	Chiba, Japan	Petroleum product,Petrochemical,Liquefied natural gas, ...[+2]	Patent: 22
92	Nippon Sanso KK	Japan	Industrial gas,Chemical engineering,Liquid helium, ...[+2]	Patent: 22
93	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	Patent: 21
94	Rinnai Corp.	Aichi, Japan	Solar water heating,Electronics,Thermal energy, ...[+2]	Patent: 21
95	So-Ken Co., Ltd.	Gifu, Japan	Semiconductor,Electronics,Electronic component	Patent: 21
96	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Patent: 20
97	Mitsui Mining & Smelting Co., Ltd.	Tokyo, Japan	Precious metal,Metal,Cathode material, ...[+2]	Patent: 20
98	Ebara Research Co. Ltd.	Japan		Patent: 20
99	Daicel Corp.	Chiba, Japan	Airbag,Chemical engineering,Cellulose acetate, ...[+2]	Patent: 19
100	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	Patent: 19