Top 50 Key Players companies in Greenhouse effect by Most Patent Citation in the Japan in 2020 – Discovery

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The Greenhouse effect top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Citation Greenhouse effect 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.

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere. Radiatively active gases (i.e., greenhouse gases) in a planet's atmosphere radiate energy in all directions. Part of this radiation is directed towards the surface, warming it. The intensity of the downward radiation – that is, the strength of the greenhouse effect – will depend on the atmosphere's temperature and on the amount of greenhouse gases that the atmosphere contains.

1	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	patent citation: 252
2	Horiba Ltd.	Kyoto, Japan	Semiconductor,Electronics,Hematology, ...[+2]	patent citation: 97
3	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 78
4	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 63
5	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 48
6	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 40
7	Mitsubishi Kogyo KK	Japan		patent citation: 39
8	Tokyo Gas Co., Ltd.	Tokyo, Japan	Natural gas,Hydrogen chloride,Petroleum industry, ...[+2]	patent citation: 38
9	Tokyo Electron Ltd.	Tokyo, Japan	Semiconductor,Power transmission,Flat panel display, ...[+2]	patent citation: 33
10	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 27
11	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 27
12	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 27
13	Sumitomo Mitsui Construction Co., Ltd.	Tokyo, Japan	Civil engineering,Construction engineering,Facility management	patent citation: 20
14	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 13
15	Dowa Electronics Materials Co., Ltd.	Tokyo, Japan	Electronics,Semiconductor,Mining engineering, ...[+2]	patent citation: 12
16	Kumagai Gumi Co., Ltd.	Yamanashi, Japan	Civil engineering,Construction engineering,Flood control, ...[+1]	patent citation: 11
17	Mitsubishi Heavy Industries Engine & Turbocharger Ltd.	Kanagawa, Japan	Turbocharger,Gasoline,Automotive engineering, ...[+2]	patent citation: 11
18	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	patent citation: 10
19	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	patent citation: 9
20	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	patent citation: 9
21	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	patent citation: 9
22	Sumitomo Forestry Co., Ltd.	Tokyo, Japan	Forestry,Forest product,Reforestation, ...[+2]	patent citation: 8
23	Toshiba Energy Systems & Solutions Corp.	Fukushima, Japan	Power transmission,Electricity,Proton exchange membrane fuel cell, ...[+2]	patent citation: 8
24	Dairei Co., Ltd.	Tokyo, Japan	Food industry,Health care,Food processing, ...[+2]	patent citation: 7
25	Nihon Freezer Co. Ltd.	Japan		patent citation: 7
26	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 6
27	Japan Energy Corp.	Tokyo, Japan	Petroleum,Petroleum industry,Liquefied petroleum gas, ...[+2]	patent citation: 6
28	Cameron Japan Co., Ltd.	Tokyo, Japan	Petroleum industry,Natural resource management	patent citation: 6
29	Tokyo Gas Chemicals Co. Ltd.	Japan	Industrial gas,Chemical engineering	patent citation: 6
30	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 5
31	The Chugoku Electric Power Co., Inc.	Hiroshima, Japan	Renewable energy,Petroleum industry,Electric power transmission, ...[+2]	patent citation: 5
32	Nitto Boseki Co., Ltd.	Tokyo, Japan	Glass fiber,Textile,Composite material, ...[+2]	patent citation: 5
33	Maeda Corp.	Tokyo, Japan	Civil engineering,Construction engineering,Renewable energy, ...[+2]	patent citation: 5
34	Meiji Seika Kaisha Ltd.	Tokyo, Japan	Veterinary medicine,Food industry,Snack foods, ...[+1]	patent citation: 5
35	Meiji Seika Pharma Co., Ltd.	Tokyo, Japan	Clinical trial,Drug,Medicine, ...[+2]	patent citation: 5
36	Matsushita Seiko Co Ltd	Osaka, Japan	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	patent citation: 5
37	Mitaka Kohki Co. Ltd.	Japan	Medical equipment,Telescope,Optical microscope, ...[+2]	patent citation: 5
38	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 4
39	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	patent citation: 4
40	Kajima Corp.	Tokyo, Japan	Civil engineering,Construction engineering,Real estate development, ...[+2]	patent citation: 4
41	METAWATER Co., Ltd.	Tokyo, Japan	Cloud database,Construction engineering,Waste management, ...[+2]	patent citation: 4
42	MARKTEC Corp.	Tokyo, Japan	Cosmetics,Automation,Industrial engineering, ...[+2]	patent citation: 4
43	Dainippon Printing Co. Ltd.	Japan		patent citation: 4
44	Takenaka Corp.	Osaka, Japan	Construction engineering,Site location,Masonry, ...[+2]	patent citation: 3
45	Tokio Marine & Nichido Fire Insurance Co., Ltd.	Tokyo, Japan	General insurance,Liability insurance,Earthquake insurance, ...[+2]	patent citation: 3
46	Valeo Thermal Systems Japan Corp.	Tokyo, Japan	Thermal,Automation,Manufacturing engineering, ...[+2]	patent citation: 3
47	Yanmar Agricultural Equipment Co. Ltd.	Osaka, Japan	Tractor	patent citation: 3
48	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 2
49	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 2
50	NICHIAS Corp.	Tokyo, Japan	Thermal insulation,Industrial engineering,Gasket, ...[+2]	patent citation: 2